still to TX to

by lovinfries4

to

Preface

Baby's First Bloom
Posted originally on the Archive of Our Own at /works/30241941.

Rating: Explicit Archive Warning: Underage Categories: M/M, Multi Fandom: 僕のヒーローアカデミア Boku no Hero Academia My Hero Academia Relationship: Bakugou Katsuki/Midoriya Izuku Characters: Bakugou Katsuki, Midoriya Izuku Additional Tags: Alpha/Beta/Omega Dynamics, Alpha/Omega, Alpha Bakugou Katsuki, Omega Midoriya Izuku, Blooming, First bloom, Bakugou Katsuki is Bad at Feelings, Midoriya Izuku is a Ray of Sunshine, Minor Angst, Fluff, Fluff and Smut, Domestic Fluff, Soft Bakugou Katsuki, Eventual Smut, Romance, True Mates, i guess, Its a bit messy, Midoriya Izuku Has One for All Quirk, Healthy Relationships, Growing as People, Non-Traditional Alpha/Beta/Omega Dynamics, Communication, Self-Growth, Bakugou Katsuki Gets Therapy, Bakugou Katsuki Swears A Lot, lots of smut, so much, truly, russian translation Language: English Collections: fics that hold my heart, That good bkdk juice, Stellar Fics: A Wonder Duo Collection , losing myself in, BakuDeku Goldmine, retro-triscuit's favorite (bkdkbk) fics, BKDK Fics I'll 100% Reread, The best BAKUDEKU, late night reads, bkdk fics that own my, Bkdk Unread, bakudeku fics i liked (and some others), My Hero Academia, BKDK That Changed Me Fundamentally, my hero academy 3, BelleDhivers_Personal_Favourite, Simply chef's kiss, fics that i WILL inject into my veins (and you cannot stop me), The Witch's Library, Like A Favorite Sweater Stats: Published: 2021-03-24 Completed: 2021-04-22 Words: 44,945 Chapters: 18/18 Baby's First Bloom

by ContraryBee

Summary

Izuku blooms for Katsuki one warm day in their third year of middle school.

What follows is both boys learning about themselves, their bond, and the society they live in.

Notes

I've been having a hard time, so have some A/B/O Bakudeku that will likely not cover anything important and include some boys figuring out feelings and getting it on.

Edit: now, with a Russian Translation :)

One

Izuku blooms for Katsuki one warm day in their third year of middle school.

In utter horror, both boys stared at each other, Katsuki holding Izuku up via his collar against the cement wall just a few blocks away from the Bakugou house.

"Fuck, now?!" Katsuki whispers harshly, slowly setting Izuku down and putting his hands on the wall above him. He swallows, and stares down at the boy he bullies for lack of a better way to express the emotions he doesn't understand himself.

"Oh no, oh no, Kacchan." Izuku whispers back, terror settling into his limbs even as heat spreads outwards from within his gut. He can smell his own pheromones changing, too, wafting into the air from him like the approach of a thunderstorm, sweetened electricity charging its way through wet forests. He shifts, and there's a sudden wash of wetness between his thighs, seeping into his pants, and he hates it just as much as it feels so good to be covered by Katsuki like this. Hidden. Dominated.

His body didn't care that Katsuki had been in the middle of bullying him just now.

"Fuck, Deku, you fucking, you…" Katsuki slaps a hand over his mouth and his nose, body shaking. He's trying to convince himself to back away. To leave, and not look back. But fuck, fuck, fuckfuckfuck, FUCK, FUCK—

"You just bloomed for me in the middle of the fucking street!" He whisper-shouts into Izuku's face, hating the way the boy's eyes filled with tears and ran over without a thought. The nerd shows his emotions so quickly. He lets them out so easily.

"I'm sorry, oh god, Kacchan, I'm sorry, oh no," Izuku begins to blubber, trying to squeeze his knees together, sliding down the wall to sit pathetically to hide the wet spot growing in his uniform, clutching his bag close to himself. It wasn't supposed to happen like this. It was supposed to give him warning signs, he was supposed to take time off school, get his suppressors, stay with his mother. He was not supposed to bloom right here out in public where anyone could walk by, with his friend/bully being the one who….

"What do I do, what do I do, I can't walk like this, I smell, I smell like…" He's got his hands between his thighs, legs tightly pressed together, tugging his bag to cover his lap, he's hot and sweaty too…

"You smell so fucking good." Katsuki's voice is tortured, and he's pressing his forehead viciously into the stone where Izuku had been standing. He's looming directly over Izuku, squeezing his eyes shut and digging his fingers into his own face. From his angle, Izuku feels like Katsuki could step over the world itself. Something weird clicks together inside him.

"Do I smell good?" Izuku asks suddenly, unsure what exactly pushes him to ask. He's starting to feel the heat everywhere, sweating, hands moving restlessly on his backpack.

Katsuki bites his own tongue to resist answering.

"I should call your mom." Katsuki groans into the stone. "I should call my mom. Ugh, that helped, think of the old hag, think of her." Katsuki digs into his own pocket for his cell phone, and peers out of his eye just long enough to call her, forcing his face painfully back into the stone the moment it connects.

"My brat!" Izuku can hear Mitsuki answer on the other side cheerfully.

"Get here now, Deku bloomed like a fucking idiot!" Katsuki chokes out, pounding a fist against the wall and breathing heavily. "Now, now!" He makes the mistake of looking down, at Izuku collapsed on the ground beneath him, looking up at him, looking so small, sounding so lovely, and smelling so delicious.

"Where are you?" Mitsuki asks through the phone. There's a notable silence from Katsuki, who was staring down and carefully, carefully, putting one hand into green hair. "Katsuki? Brat?!"

Izuku isn't really listening, he's sighing into Katsuki's pant leg, weakly tugging. He purrs when Katsuki's fingers sink into his hair, and he arches up to press it harder.

"Kacchan. That feels good, can you…?" Izuku moves his hand to grasp Katsuki's, and starts to pet himself with it, dragging it down to his face so he can nuzzle and lick at the palm.

"God." Katsuki grunts out, hand squeezing his phone dangerously.

"Katsuki!" Mitsuki screams from the phone, "Tell me, now! Where are you boys?!"

"Down Hana street, in a small alley. Past the three vending machines, fucks sake. He's…there's not much time…I can't leave him…"

"Katsuki, you're doing great, okay, you're doing so great." Mitsuki says, rushed, a flurry of noises on the other end telling them she was on the move. "You're gonna have to hold on a little longer sweetheart, I know this is difficult. Is there anyone else there, do you know who he bloomed for?"

Izuku started nuzzling into Katsuki's thigh, panting into the cloth of his trousers.

"It was for me." Katsuki hisses weakly, legs shaking, starting to slip. He sits with a thump in front of Izuku, who immediately starts working to climb into Katsuki's lap. He wasn't trying to take his clothes off, thankfully, but he was looking for contact.

"Fucking shit." Mitsuki says, voice growing fainter. "Izuku bloomed for Katsuki, they're in public. He says down Hana street, small alley by three vending. Car?" She says off the phone, to someone who answers.

"Easier to run from here, its close."

Katsuki isn't listening anymore, but he thinks he hears his dad through the phone. He's far more interested in the way Izuku was panting into his face, his stupid little mouth open, bottom lip wet. He smells so good. Sweet candies, zapped lightning, the wet earth fertile and warm…

"Katsuki, baby, we're going to be there in a few minutes, just a few minutes, what are you doing right now?" Mitsuki asks amid echoing footsteps. They're running.

"This is really hard, Mom." Katsuki whispers desperately, hoping it reaches the phone that was hooking around Izuku's neck now. He's holding the smaller boy suddenly, arms wrapped tight around his childhood friend and current victim, pulling him up and into his lap tighter and tighter, nosing against his face. "He's so…so…"

Izuku purrs against his neck, licking, and Katsuki lets his head fall back, gritting his teeth.

"Katsuki, keep talking to me!" Mitsuki commands, letting a bit of her alpha into her voice to catch his attention. "I know he smells good, baby, but you can't, right? You know you can't?"

"I can't." Gods but he wants to, as Izuku slips his legs apart over Katsuki's thighs, pressing his little mouth to Katsuki's chin. His nose huffs sweet air over Katsuki's face and he puts his forehead against his, letting Izuku slip his way further into his arms. He wants to kiss him, kiss the nerd (that's not new though, is it?), he wants to kiss him all over, he wants to sink into him in every manner he knows of and more that he doesn't, gods, Izuku was touching him back, open and wanting and trusting him so much, he bloomed for Katsuki, only Katsuki's….

"No, you can't. Remember, he's in public, right? He's exposed, it's not safe. This came on fast, then, if he went to school. He should be in a nest, right?" She wheedles, between heavy breaths, and Katsuki would normally hate this tone of voice, it was patronizing, assuming he wasn't entirely in control of his senses, but fuck, he wasn't.

Izuku doesn't seem to like the chattering, and the lack of attention. He pats at Katsuki's chest, ducking in to purr and rub his head against Katsuki's neck, against his glands, and it's sending out pheromones to match the ones emitting from Izuku, the sweet-smelling dizzying ones that were making Katsuki drool.

"Deku, you fuck, we can't, you're not safe." Katsuki whispers into green hair. He tugs tighter, capturing Izuku's hands between them so they can't travel anymore, can't find ways into his jacket, to find skin.

"Kacchan." Izuku whines, wiggling against him. "Please, I need it to stop. You're…it's you, it's for you…."

"I know it's for me, baby, but we can't. You have to be in your nest, you're not thinking, we're too fucking y-young, and I…I…just…." The pet name his mother uses when she's especially emotional slips out, but it fits his lips so well. He simultaneously wanted to punch himself and punch Izuku, but now everything in him rebelled at the thought. He was, minutes ago, snarling into Izuku's face trying to discourage him yet again from entering U.A. and being a hero. He was hurting his little omega true mate out of rage and worry and hating himself for doing it and Izuku for making him do it.

Don't lie. Izuku never made him do anything, that was all Katsuki's fucked up brain.

Fuck, he needs help. It's been hours, it must have been. True mate, bloomed for him, true mate… He squeezes tighter when Izuku latches his mouth around his neck gland, groaning with the sudden rush of pleasure. Katsuki has never been this hard in his life, and it's all for Izuku, for fucking Deku, who was so small and perfect and smelled like a goddamn dessert.

"Kacchan, my alpha," Izuku sighs, dreamy and hot against Katsuki's chin. He strains, trying desperately to slide right into his skin, and their lips brush just slightly, just so Katsuki can feel the wet plumpness of Izuku's chewed lips. He drops his head back with all the leftover strength he has in his body, staring up at the blue sky.

He growls, something low, a noise he's never made before. Izuku lolls, vibrating with it, baring his neck and then their glands were rubbing, scenting, and it sent singing sensation right through Katsuki, curling his toes in his shoes.

"Alpha, my alpha--" Izuku was repeating, drugged from the scent of the bloom, of Katsuki's own pheromones gushing out to match, of the smell of Katsuki sweating right there, under his thighs, in his arms. It's an explosive mix. Katsuki grips tighter, holding Izuku to him, and his eyes roll back at the way Izuku licks daringly over his scent gland.

Fuck, baby, his self-control slides through his fingers. He pulses in his pants.

"Deku—" He whines into green hair, nose full of him.

But there was a scrape of a shoe, and a concerned voice, interrupting their little bubble of false safety and teenage hormones.

"Hey are you two okaayy-- woah, holy shit." A man's voice. A deep inhale. Threat. Too close. Close enough to smell Izuku's bloom, which was fucking powerful, and should be only Katsuki's, and Katsuki didn't have him safe.

He growls, vicious, snarling, hand coming up to defend, fingers sparking, and Izuku huddles quickly into his arms. Katsuki knows the power he needs, to blow this fucker away, to get him away from his omega, Katsuki was his alpha now, he had to keep him safe.

"Back away, now!" Mitsuki shouts, just in time, anger and command in each syllable. Her heels clack quickly on the sidewalk. "That's my boy! He will hurt you! Back away!"

"Right, okay, sure lady." Says the strange voice, muffled and nasal like he's holding his nose closed, and then Masaru was there, and Katsuki could surrender himself and his omega to his comforting beta sire.

"Come on, bud," Masaru says softly, urging Katsuki towards himself. "I have some suppressors, right here, I'm going to apply the patches, alright?" He reaches to patch Izuku first, and Katsuki can't help his first instinct to growl as the hand goes near Izuku's vulnerable, open neck. His teeth feel large in his mouth, and he feels on the edge of a fucking knife. Masaru pauses.

"Fuck." Katsuki growls, turning away and putting his teeth in his own shoulder. The pain brightens even through his thick jacket, his teeth must have grown with aggression. His true omega huffs a breath against his skin and hums, pleased. He feels Masaru move quickly then, applying patches to a whining Izuku and then to Katsuki himself. Immediately his nose is dulled, just enough, that he can release his bite and the tight, tight squeeze he had Izuku in.

"You're doing so well, sweetheart, you did great. He's safe, we're here now. We can get him home." Mitsuki says to him, wrapping Izuku in one of her heavily scented blankets. It's calming for Katsuki, with his omega now smelling like his pack and his family, and he can back just far enough away that Izuku slips from his lap. He looks around, dazed. Well, they both do.

Katsuki's pants are soaked through with Izuku's slick.

"Fertile little thing, isn't he?" Mitsuki says with a small snort, cooing a protective noise when Izuku lifts his head to blearily blink at them all. Masaru wraps a large jacket around Katsuki. It's a long winter one and he might overheat, but it does the job of hiding the mess of his pants and his own raging hard on.

Katsuki reaches out and squeezes Izuku's cheeks together so his mouth puckers. Instead of pulling away, Izuku's lips merely twist into a smile, squished as it was, his eyes sparkle with green flecks, and it makes Katsuki want to explode his own face this time instead of Izuku's.

"Shit." Katsuki says, climbing to his feet shakily. He rubs over his hair and slaps himself in the face harshly. "Shit." He can't make himself let go of Izuku, who mumbles and grumbles but falls into step under his arm like it was normal and usual and everything they used to do together as small pups.

"Come on, kid, let's get Izuku home." Mitsuki wraps her arm around Katsuki's shoulders. "We can deal with everything else later. I'm proud of you." She's got her eyes around them, sharp and unrelenting, and Katsuki never realized how much he trusted his mother to make things right when he needed her. Masaru's arm around their backs is comforting, strong, and a soothing parental scent that at least let Katsuki focus on something other than sex.

Izuku mumbles, dizzy with the sudden suppressors but obedient under Katsuki's arm.

"Just get him home." Katsuki rasps, unable to help sticking his nose into green hair. He feels a hand scrub through his own hair but doesn't lift his face. He's busy struggling with everything that has changed in his worldview in the last thirty minutes.

Two

Chapter Summary

"Kacchan, we need to talk about this." Izuku whispers, sitting primly on Katsuki's bed over a week later.

Chapter Notes

See the end of the chapter for notes

"Kacchan, we need to talk about this." Izuku whispers, sitting primly on Katsuki's bed over a week later. Katsuki hates himself for how many times he's imagined pushing Izuku down flat against it in the time since that happened and having Izuku right there was not helping. Smelling his muted scent, staring with hateful eyes at the skin colored patch under his ear, on his neck, right where Katsuki imagined tasting. Izuku got to taste him last week, why couldn't Katsuki get the same?

Fuck, shut up brain.

Izuku shuffles a bit, hands on his knees. He's being patient. But he's clearly not going to leave unless Katsuki makes him leave, and that would involve making him cry.

Helplessness sparks in Katsuki, as much as he knows this is important, he feels cornered, and caged. It transforms into rage, like many of his emotions do, and it flies from him with the ease of long practice.

"I know!" Katsuki roars, turning and slamming his fist against his door. Izuku jumps, and Katsuki hates himself.

"Shut the fuck up and talk, brat!" Mitsuki hollers from downstairs. It makes Katsuki hiss and open his door, just to slam it again on her, with a satisfying reverberating bang.

"Talk, talk, talk, that's all everyone wants me to do. The old hag, the old man, my therapist, fucking you." Katsuki growls, pacing from window to desk, snarling at himself in the mirror when he passes it.

"You see a therapist?" Izuku asks, surprise coloring his voice purple.

"Yes." Katsuki grinds out through clenched teeth, daring Izuku to comment on it. Other people made fists when they were frustrated, or angry. Katsuki flexes his palms outwards.

"Oh, that's okay, that's great!" Izuku comments anyways, like he always does, either uncaring about Katsuki's threat or utterly immune to it. "I see one too, she helps a lot. Talking about things makes me feel like they're outside of me, and I can look at them and deal with them better, you know?" Izuku says like they're best friends again, just talking, and Katsuki hates the parts of himself that want to slap him in the face or blast an explosion off to make him stop being so perfect and beautiful and terrifyingly good.

Instead, Katsuki takes his therapist's advice (damn the woman) and breathes tightly through his nose as deep as he possibly can, letting it all out through his mouth with a loud puff. The strain in his wrists relaxes as he forcibly makes his fingers curl inwards, fists closing off his best method of attack. He does that twice more, turns on his heel, then marches and sits next to Izuku on the bed like he was walking to his own gallows.

"U-uhm." Izuku starts, hands on his knees, clenched together. He turns his green head to peer from under his hair and alarm flashes through Katsuki so fast, something pops in his spine when he tenses as hard as stone.

"Don't look at me." He commands, too much alpha in his throat, and Izuku immediately sits straight, staring ahead, eeping under his breath. Katsuki sighs, staring at the wall and pretending he was alone so he could actually say these fucking words. "I can't handle you staring at me, your eyes are too…."

Izuku is silent, waiting.

Patient.

"…big." Katsuki finishes lamely and rubs a hand over his face. He's tempted to blast himself, if only to hear the familiar ringing instead of the way Izuku breathes three feet away. "I can't think cause all I'm thinking about are your eyes."

There's a silence as Izuku parses through what that could mean, and Katsuki hates every moment of it. Honesty is disgusting, he doesn't understand why anyone would want to expose their feelings like this. Shame, embarrassment, and self-loathing flicker through him by turns, but then a miracle happens.

Izuku's scent changes from nervous to bashful. It's a very, very slight change, but it makes all the difference in the world to Katsuki's alpha, who relaxes finally, and Katsuki no longer feels on the verge of violence.

"Oh." Izuku says, and Katsuki can hear the nerd's brain working overtime with all its muttering and stalling and fast paced tangents. He's thankful, at least, that its not out loud. He doesn't want to think what this…mother fucking confession means to the nerd.

"I need to speak first. I'll even try to listen afterwards, but keep your mouth shut until I'm finished, got it?" Katsuki growls at the wall, glaring at it threateningly.

"Un." Izuku affirms lightly, voice small and gentle and entirely too willing to listen.

By all rights, Izuku should never want to see Katsuki again, first bloom or not. That didn't have to mean anything. It was biology. True mates weren't destined or nothing, some people's true mates were awful horrible human beings and they lived a happy life without them. It was manageable, and Izuku could go on and be perfectly healthy and happy with someone else, not with his childhood friend turned bully who didn't know his feelings from his own ass. The bond could simply…lapse, grow old and stale, without a matching claim, and it would be like a weird childhood memory.

But the evidence of the matter, was that Izuku was here, right the fuck there, two feet away perched on Katsuki's bed wanting to talk with Katsuki. Always with his Kacchan. Following along. Being his sweet fucking heartfelt self.

So, Katsuki better woman-the-fuck-up and talk about his…his…urgh, his feelings.

"You bloomed for me, and it was the best thing ever." Katsuki starts. He feels the bed shake with Izuku's bodily jerk, but he doesn't look over. "It shouldn't be, because I alter between hating your guts and never wanting you to leave my sight, and it doesn't make any sense because it's not linked to anything other than how much you've smiled at me in one day, and how I felt about it." His throat feels like a desert.

There's silence, thankfully. Katsuki doesn't know where he's going with this. Every breath in, he gets snatches of Izuku's scent.

God, this is beyond awkward, he wants to die.

"I've felt like that for fucking ever, even before when we were…" friends. He doesn't say it. "I didn't like that I had no control over that feeling. I tried to fix it. Meant I…did…what I did." Bullied him viciously. He couldn't say that either. Shit. "In my mind, only I could do it, and it would be okay. It wasn't, obviously, I fucking knew the moment of, every fucking time, but…shit…fuck." Katsuki cracks his knuckles, glaring down at them, breathing slowly again through his nose.

"You were my omega, before I knew what that meant. Before you even fucking presented, you were mine and I knew it, but I didn't know how. Fuck, yes, I know that you're not, I don't own you, I get it. All of you can get off my back about that. But, you were, it was…I just knew alright?! It pissed me off, but it was also the best thing about me, because I'm me, and I'm the fucking best and going to be the number one, obviously, but fuck," this is the part with Katsuki always struggles to work through, even on his therapist's stupidly comfortable yellow chair, "I'm the goddamn worst of the fucking worst too, not worth an omega like…like you."

"What's an omega like me?" Izuku asks, gently, carefully, confused.

"I told you not to speak." Katsuki responds without any heat, because hearing his voice released some of the hot tension in his chest. "A good one, a nice one. A heroic one, despite how much you don't have a quirk and you're small, and weaker than me, and going to get yourself killed." He bites his lip hard, probably too hard because he tastes blood, and stares through the wall.

There's more silence. Katsuki feels scraped empty, like he has no more words.

"Is that what that was all about? You didn't want me to get hurt?" Izuku asks, and it's sweet and innocent and far too much wiggle room for Katsuki to get away with. No.

"A part. The rest of me did, and does, think you shouldn't be a hero, for various reasons that I can't even explain, I have no idea. You're quirkless, you're physically weak, you cry all the damn fucking time—ugh. I'm against it. But as people keep fucking telling me, I don't have control over other people, no matter how much I wish I fucking did." Katsuki grimaces, hating the therapist-speak coming out of his mouth. He wishes he can pretend better. But he can't pretend to never have smelled Izuku's bloom, nor pretend he can't smell him now, smelling absolutely fucking perfect for Katsuki, just for him, made for him.

Shit, fuck.

"Oh." Izuku says, and it's not damning or anything. It's the same noise he makes when he learns something new and interesting in class. He's resisting the urge to mutter, too, which Katsuki appreciates.

He scratches at the patch on his neck. It itches.

"So, what now, Kacchan?" Hearing that name is both a blessing and a curse, as it simultaneously burns Katsuki right there next to his heart and heals the rest. "I don't…I can't go back to how it…how it was." There's a long, long, long silence where they sit and contemplate together for a moment. Then Izuku speaks again, whispering.

"Please don't treat me like that again. I want to be your friend, but…" but you've been so cruel to me. Katsuki hears beneath it. There's something hot in his gut.

"I'm not going to treat you like that again. I'll have to get back to you about…about the other stuff. It's not going to be quick." Katsuki says with relative confidence. From his periphery, he takes in green hair and freckles that he's long memorized.

Izuku sighs, worn down and sad.

"I also don't like that it took me blooming like a miracle in the middle of the day, outside of my cycle, for you, for you to stop b-bu…bullying me. It makes me think it would have just…continued on if I hadn't." There's a wistful note to his voice that was entirely inappropriate for the subject, Katsuki found, but he was surprised how much the words didn't stab him in the stomach. They were true.

And honestly, the bullying probably would have continued, Katsuki didn't know where in himself he would have found the motivation or moral conviction to stop. He can't find anything to say, and only wrestles with the monster in his gut for a few minutes, trying to quell it. If he fights hard enough, perhaps he can beat it.

"Fucking hate this." Katsuki grunts, baring his teeth at the carpet in his room.

A beat. "What do you hate?" A note of anxiety threads into the omega's scent, and Katsuki sighs.

"Not you, you absolute idiot." Katsuki feels the last of his rage bleed out of him, leaving behind exhaustion and emptiness. "I've never hated you and I never will." He doesn't elaborate on what he does hate, and perhaps Izuku catches the fact that he doesn't quite know himself or know how to articulate it.

"Oh." Izuku whispers, and his scent changes again into something Katsuki can't bring himself to identify. But it was better. "Okay, Kacchan. Thank you for talking with me."

"Whatever." Katsuki turns away entirely, putting his face into his bedding and trying not to think about the spot Izuku is sitting in smelling like him after he leaves.

"I'll see you on Monday." Izuku says, and he takes his bag and quietly does leave, closing the door behind him. Just for an instant, Katsuki lets himself peek out to watch, and the last he sees is a contemplative face meant for smiling with freckles and green hair and green, green eyes. Then Izuku is gone, and Katsuki is alone in his room, thankfully, until the old hag calls him downstairs for dinner.

He's eyed as he stomps in. Though a beta, his dad had a great nose, and could smell the range of feelings he was emitting. He merely started laying out the silverware.

The old hag on the other hand, never knew when to keep her mouth shut.

"So, how was that, brat?" She grins at him with too many teeth. He would snarl at her if she wasn't holding her spatula like a weapon. "Izuku-chan looked pretty good when he left." There's an element of proud of you, and you did it, in her voice which is as close as she normally gets to saying it.

It's been a fucked-up week.

Katsuki growls, wordless, mouth screwed shut.

"Deep breath, champ." His dad says with his usual care, not blaming, nor demanding.

For fucks sake.

Chapter End Notes

ahh yes, the sound of me ignoring my pressing responsibilities in order to post more bakudeku. If I go dark in a few days its because I'm doing all the assignments i've been ignoring all term.

Three

"I have to tell my alpha." Young Midoriya says to him, and All Might assumes he means his pack alpha, perhaps his father, his mother.

"Quite alright, my boy!" All Might says, patting his fluffy green hair. "But, just the training part, alright? All for One as a quirk needs to stay between us."

.

.

Katsuki took it well, for the most part. Izuku came to him with determination written in his eyebrows, and Katsuki only blew up twice in the stuttering, awkward, trying-not-to-give-to-much-away method of describing exactly how he was getting a quirk, but only after extreme physical toil, and it wasn't because of anything weird Kacchan, he promises, you can trust me. I'm going to be a hero. I'm going to UA.

That was a bit much to swallow.

Katsuki explodes and they spend a decent month not talking to one another. A month that ached at their newly uncovered bond, the tether that connected them soul deep.

True mates.

If the tabloids are listened to, true mates are soul mates. Special made people, couples, that are meant to be together and yet, yet, still have so much drama that the magazines have enough to print out three years worth from a single paparazzi witnessed dinner. If Inko was to be listened to, true mates were sweet, perfect matches that would build you up when you were down, drag you back to earth when you needed it, a person perfectly tailored to your needs exactly as you need them to be.

Mitsuki just snorts and waves them off when they ask, rolling her eyes. In comparison, Masaru shakes his head at his wife lovingly and tells the boys the story about how they met. It was in college, in the same fashion and design program that the two years younger Mitsuki found Masaru to be both someone to look up to and someone to beat – and isn't that familiar? Katsuki gags, but Izuku's eyes are shining.

True mates for Izuku meant someone to love.

True mates for Katsuki meant someone who would push him to be his best, who would demand, conquer, require.

It would be a steep learning curve for Katsuki to learn that Izuku could be the soft, gentle, loving type and yet also demand from him his very, very best.

Not only that, but true mates with the certain, unfaltering knowledge that there was nobody else. There would be nobody else. A lifetime in each other's pocket, no other person would ever hope to compete. Nobody could.

It occurs to Katsuki one early morning when he was up before the world, running his usual three miles, that if there was anyone running beside him it would have to be Deku.

That realization simultaneously irritated and soothed him. Eventually, he thought ruefully, annoyed, frustrated with their lot in life, eventually, he'd end up accepting it.

And then after school, as Izuku packed up and was ready to go to the beach for more clean-up duty, Katsuki chuffs him right over the forehead with his chin, roughly, and with a sour expression. Izuku made a little chirping noise, flushing red with embarrassment after it, and hides his face.

Looking down on awkward limbs, bruised knuckles, and that same fluffy green hair, Katsuki felt a thrum of warmth in his chest utterly removed from the lingering bloom bond. This time, his therapist had done her job well. He couldn't lie to himself.

He wished he still could. Ignorance was bliss? What bullshit. Ignorance was stupidity.

The UA entrance exam is days away, and their applications have been in for months. In the little section, towards the front where 'sexes' were just a few check boxes and a blank line, there was the often-ignored line for "bonded: yes, no"; and a space for the name. Ostensibly, it was necessary medical information. Personally, Katsuki felt it was invasive.

Katsuki puts a large X on the yes but refuses to write a name. He doesn't dare ask what Izuku put.

After the entrance exam, Katsuki waits at the front of the school for a worryingly long time. Then Izuku is walking up with a sheepish smile, a bit of heartbreak in his eyes, bandages under his clothes, and Katsuki doesn't say a thing. He just walks with Izuku in silence, taking the train, standing a bit too close, not doing anything he could tell Izuku was waiting for. Perhaps an 'I told you so'. Or a disgusted sneer.

But he doesn't, he just walks Izuku to their split-up point, and chuffs him again, wordless and rough, and ignores tears that splash against his lapel. Clutching his jacket like they used to do when they were kids, Izuku doesn't make noise when he cries like this, when he's so afraid of failure, when he's so close to giving up, and Katsuki just…stares over his head. He doesn't tear away like half of him wants to do, out of emotional preservation. He doesn't say, "you look like shit" the way he wants to. He doesn't reach up and touch those tears to bring them to his lips to taste them like he wants to (because what the fuck).

Izuku eventually releases him, and they split apart.

He wonders, later, if that was the right thing to do.

Because later after the mail comes in, Izuku calls him directly on his cell and babbles into it, hiccupping and sobbing in turns, laughing, because he got in. And beyond that. He got in the top ten, with fucking…fucking…rescue points?! And he's injured, oh, yeah, he has trouble with his quirk, it hurts him, he can't control it. But it's alright, because he helped someone else. Don't worry though! He'll get it, he has a teacher who should be able to help! Silent throughout, Katsuki just grunts when Izuku pauses, and it lets the nerd go off again with joy in his voice.

Izuku hangs up with a cheery laugh, on his way to meet someone, he said, and Katsuki stares at the wall, holding his phone to his ear.

It's the worst thing, when your carefully constructed worldview crashes into dust again, because of the same fucking person.

Shrieking into a pillow helps. He wants to throw his phone, but it's his third this year, so he throws that stupid sheep stuffy his therapist got him. He had thought it was stupid and funny because it was green, like Izuku, and throwing it helped just a smidgeon. Staring at the fallen sheep, which lay on its face, he wonders if it feels good because he got to let out his anger physically, or because it was green and he could hurt it.

'Hurt it.' It's still a stuffed animal it couldn't be hurt but it was the thought that…was he thinking…he'd promised. Fuck.

Deep breath, deep breath.

Nope, not today therapist.

"Fuck! Fuuuuck!" He yells, hollers, kicking and accidentally catching his chair leg. It crashes forward, whirling, making an awful noise, and he already knows what's about to happen.

Collapsing on the edge of his bed, head in his hands, Katsuki counts the seconds before there's a knock on his door. They wait for him to grunt. Then a cup of chai tea is pressed into his leg and his father's weight disturbs the bed.

Katsuki doesn't say thank you, but he does drink the tea.

It's a bit tense for a while, but even Katsuki, the king of holding a grudge, gave it up as a bad job. Izuku suffers in very loud silence. Loud, shining green eyes that are too big and too watery. Their stupid homeroom teacher announces they both got into UA, and the extras are idiots about it. Of course, he got in, he's Bakugou Katsuki. (Unspoken about are the old friends of theirs who had a hand in bullying Izuku too. Katsuki set them quite straight a while ago, and no one had the balls to hang out with him anymore. He didn't miss them).

Months later, he meets up with Izuku, who's chewing on his lips and trying not to glance at Katsuki, and they walk to UA together. It irritates him, the muttering, but it also lets him know the nerd was nearby.

Their first day. At UA. The Hero School. Together. In the same class, even.

Katsuki gets to his seat first, while Izuku is ambushed by that cheeky girl he'd gone and saved at the exam. Relaxing as best he could, Katsuki is immediately bombarded with a tall guy who looks like he dresses like his own dad berating him for …for what?! Putting his feet on the desk?

"Fuck off!" He barks, and that scandalizes the robot even more. Weakling.

Despite the thought, he does realize the guy's legs are utterly jacked. Actually, most of the people who wander in look jacked, like they have strong quirks, or like they're rich as fuck. He'd been the one to get first place in the exams, but he wonders who that 'Kiripima' guy was who got second. The six arms? The guy with the tai?!

Ah, Glasses just said he's from Soumei.

"Pansy ass rich kid." He says and is saved from another interrogation via stiff hands when Izuku distracts them all and is swarmed by the nerds.

They praise the green haired fluffy nerd for risking his life in a test. For rescuing the girl there who was stupid enough to get her foot stuck. The girl who leans in too close to Izuku, causing him to blush like a fucking virgin and stutter, and Katsuki feels something sick in his stomach tighten a little bit too much.

Ugh. Focus on school shit. Hero school. UA. Being a hero student at UA like he always (dreamed) thought he would.

He's gonna kill it.

Four

Chapter Summary

Katsuki would like one day, just one, where he didn't feel like screaming at the world.

Katsuki knows he makes a lot of mistakes where it mattered. All the little things? The school, and the classes, the training, all that? Perfect, straight A's, he can do fucking everything and anything. Even during Aizawa's orientation, when Izuku went and broke his fucking finger instead of an arm and everyone acted like it was somehow a good thing – Katsuki kept his cool. He snarled and spat at everyone who went near him, but he didn't rush at Izuku and grind his face into the dirt like a large part of him wanted to.

Hell, Katsuki should be applauded for holding himself back. He's not at the top of the class, but he's fucking going to be. He can be the straight A student; number one, make them all watch his back in frustration and awe. He can do that. He's had a lifetime to be good at that.

But where it was fucking important, he just keeps fucking up. UA has already taught him that, he just keeps losing. His responsibility, his duty. The root of all his evils, the reason why he was so fucking worthless, and incapable, and an idiot. A goddamn weak ass fool.

What was important was Deku.

And Deku didn't seem to realize it at all, breaking his limbs all over the fucking place, hurting himself trying to desperately catch up to people who had their quirks all their lives, and here was Deku, trying to skim by on workouts alone and a quirk that was obviously too fucking much for him right now the way he was using it.

Trying to use it.

He'd still won that stupid exercise of All Might's, with the floaty girl, but had sacrificed his two arms to do it. He'd done his job, with great casualties, and stared with watery eyes through the remnants of Katsuki's smoke. Determination shone in that deep green, as did desperation. But he'd won, and Bakugou had lost. It bit and chewed at several parts of Katsuki he couldn't pinpoint, the parts that wanted to win, obviously, that hated losing. The parts that wanted Deku safe and secure and away from danger. The parts that were at once infuriated and aroused by the fact that Deku fucking won.

Well, Katsuki couldn't call that a true win, not when it finished with Deku sitting in the nurse's clinical bed, getting his arms wrapped by an irate Recovery Girl.

In comparison, Katsuki was pacing outside, glowering at the floor. When the door opens, it's All Might standing there, big and suspicious like he's been since class started.

"Ah, Young Izuku, Young Bakugou is outside, would you like to speak with him?" All Might turns and inquires of Izuku, who says an affirmative immediately, despite All Might's clear hesitation.

Fucker. Didn't know anything about Izuku, or about Katsuki. No matter how awesome he was, and how many times he'd won villain fights.

But when Katsuki enters the little office, with Recovery Girl glowering her old-lady stare at them both, Katsuki's righteous anger bubble bursts and leaves a bad taste behind.

"I know, we're gonna talk about what the fuck happened back there, with me and my anger issues and my complexes, but first I wanna get it off my chest. Stop fucking breaking yourself trying to do things you don't need to do yet." Katsuki growls, collapsing on the little visitor stool and dropping his face directly into Izuku's hospital bed. He doesn't even want to look at him.

He hears Recovery Girl make a vaguely impressed noise, against her will probably, but ignores her.

"You're smarter than that, you shitty ass nerd," Katsuki growls into the sterile bedding that smells like hospital and old people, "there were a bunch of other things you could have done other than take my fucking blast in the fucking face."

"You don't want me to take the blast in the face, don't point a blast in my face." Izuku mutters, a bit brattishly, and it's enough to make Katsuki raise his head and stare at him dangerously. Izuku sighs, and his patches are there, so Katsuki can't use his scent to help himself figure out the omega's moods. He puts his arms on the end of the bed, resting his head on them so he doesn't have to look at the bandages anymore.

"Yes, Kacchan, I understand. I just feel so…stuck. I'm so behind."

"Your body will catch up. Be…be fucking careful with it, Deku, fuck, it's the only one you got." Katsuki's already sick of seeing Izuku injured, and it's barely been three weeks. He's not going to survive three years of hero training.

A moment of silence, and Katsuki listens absently to the tapping of a keyboard around the edge of the curtain.

"I will, Kacchan, sorry for worrying you." Izuku says and it's lovely to hear, and he even knocks an ankle against Katsuki's folded arms. Asking for forgiveness.

But the sorry from Izuku means another one is called for from Katsuki, and that was the hard part.

"And I won't…I shouldn't…shit." Katsuki growls, turning away from Izuku's gaze. One day he might be able to face him head on, but not today. Today Katsuki was weak, yet again. "I shouldn't have gone so hard, it was unnecessary. I lost the actual point of the exercise. I just wanted to beat you again. You and your fucking... quirk." This entire thing has a bad taste in his mouth, but everyone had to do things they didn't like, right?

Izuku readjusts in bed. Katsuki thinks again on what he said and scratches a hand through his hair roughly, growling at himself.

"I mean win, like, win against you." Katsuki says, aggravated. "I meant what I said before, I don't fucking lie." I'm not going to hurt you again, not deliberately. Not like that.

"I know, Kacchan, I believe you. I do." Izuku soothes, and it's both amazing and horrible. He sighs again. "We both went too far this time." It's said not quite sheepishly but resigned. As if it was just to be expected.

"We'll have to fucking do better then."

"Okay, Kacchan." Izuku shifts, then gets to his feet. "Can I go home, Recovery Girl? Thank you very much for your help, Kacchan will take me home."

And so, Katsuki found himself walking at Izuku's side in the golden light of early evening, and they run into his stupid nerd brigade at the entrance.

"Deku-kun!" Cheeks says, like she has any right to use the name. "Are you alright? That was a crazy battle!" She cheers a bit, and they start babbling to one another. Izuku looks happy, enthused, and Katsuki allows himself a brief moment to feel slightly hopeful that the nerd can actually gain useful friends that won't immediately kowtow to Katsuki himself, or, worse, simply avoid the target of his usual wrath.

But he wasn't his target anymore. It's been several months, over a year actually, now. Huh. Time passes.

"Bakugou-san, I must say, we did try our best today! However, that blast of yours was…" Iida, Glasses, speaks up with a rigid back and a clenched fist.

"I get it, Glasses, you don't have to fucking tell me." Katsuki growls at him, turning on his heel and walking on. "Deku, let's fucking go!"

"You walk with him?" Round cheeks says in surprise.

"We live nearby each other, Kacchan has always walked the same way I did." Izuku says, around a little white lie. It was never Katsuki and I walk home together, just we walk in the same direction. When did he get so good at doing that? Izuku bids his friends goodbye, thanking them for staying after class, and hustles to catch up with Katsuki. He walks close enough their shoulders brush all the way to the station.

"Despite it all, Kacchan, I enjoyed fighting with you today." Izuku admits, a little bashful. He's blushing, and looking away, stupid and bandaged and fucking cute.

Glancing around, Katsuki takes a chance and leans forward. He scents Izuku with his cheek, rubbing their cheekbones together with a quick brush, before pretending he hadn't just done that.

In a burst of embarrassment and shy excitement, Izuku's patch just barely catches the rush of pheromones that probably would have filled the train car.

"I did too, nerd. You fought well." Katsuki says lowly, not looking around, and he feels like he's been rewarded when small, knobby fingers carefully take his pinky and ring finger hostage where they hung between them. They're not holding hands, because Bakugou Katsuki doesn't fucking hold hands but…

Katsuki's stomach flips over, and its nauseating, but he doesn't pull away until the train comes to a stop.

That night he dreams, and he knows he's dreaming because some part of him recognizes that this already happened and that he'd already done everything right (according to the old hag, and the old man, and his therapist), but he's still deeply unsettled.

Katsuki dreams of Izuku's first bloom, of how he held him tight and how maybe, he could have simply rolled them over, let Izuku present and ripped his way to the source of that slick and drown himself. How Izuku would squeal on the end of his alpha cock, how knotting might feel.

He'd blast that motherfucker away, put his teeth into Izuku's neck to hold him still and strip him so he could touch. Izuku would make those noises again, pant Kacchan into the air like a prayer, scrambling to hold onto the cement and arch like nature told him to. Within his dream Katsuki knew it wasn't real, and he wasn't ready to deal with the very immediate, concerning feelings that arose from thinking how he would kiss Izuku first. Very first thing. Kiss him until his eyes were crossed and his face turned dumb. How Katsuki would put his fingers in scrawny hips and thin thighs (no, they're muscular now, fleshy and thick), hold his reedy arms behind his back as leverage (no, they're jacked now, with thin dark little stretch marks at the shoulders from growing far too quickly), how the scent and smell of them in his first bloom would balloon out into Katsuki's rut and…and…

How he would hold Izuku up gently by cupping his chin so he could breathe, knock his knees apart and slide inside like he's finally giving Izuku what he needs. And what he needs, is Katsuki.

Waking up in a mess did not make for a good day. Looking Izuku in the face was a bit harder, so he chose to glare ahead instead, letting the mutter and mumble of Izuku not really paying attention wash over him.

Katsuki would like one day, just one, where he didn't feel like screaming at the world.

Five

Chapter Summary

There's something about a sudden threat to your life, or the life of your friends and loved ones, that really puts your priorities into clear focus.

Chapter Notes

See the end of the chapter for notes

There's something about a sudden threat to your life, or the life of your friends and loved ones, that really puts your priorities into clear focus.

The USJ proved to be an absolute cluster fuck. Priorities were suddenly clear. Become the best hero. Win all the fights. Keep Deku alive.

The instant that purple portal zipped shut, the teachers all arrive, Katsuki was abandoning Kirishima's side and launching himself forward. Not all of it was alpha either, that thrum of omega, omega, omega, how could you fail so badly you couldn't locate your omega in the midst of a fucking attack--

"Kacchan!" Izuku cries out, cradling his arm to himself, but falling forward into Katsuki's arms like he was falling into bed, into home. Were his legs strained? They barely held him up. No matter. Katsuki held him up now.

"Fucking hell." Katsuki growls, clutching him close, and putting his nose in green hair. That was the absolute worst. Fucking villains. How fucking dare they?! How dare they run from him?! How dare they do…do any of this?! Izuku was shuddering, digging his face as deep as he could against Katsuki's neck, making low, hurt noises that made him want to kill literally everything in the world. That fucking purple portal bastard…that hands guy…the big black monster that nearly beat All Might? Fuck. Fuck. He wanted to scent but the patches were in the way.

"That was so scary. Aizawa-sensei, he, and…and All Might," Izuku blubbered, grasping with trembling fingers at Katsuki's costume, eyes watering already.

"Shut up, dipshit, it's all," Katsuki's voice stuttered, but he soldiered on, "It's alright now. I'm here." And oh, fucking hell, that was far too exposing, vulnerable, open. That was displaying all his feelings right there out in the open air. For both of them.

But the world doesn't end, Katsuki doesn't burst into flames, Izuku doesn't scream or push him away, or anything Katsuki was weirdly expecting. Instead, his omega slumps, sighing into the safety of Katsuki's arms and he nudges his nose against Katsuki's neck gland. He's entirely submitting to Katsuki's alpha, trusting him to keep him safe, and Katsuki's entire fucking soul shudders at the weight of the responsibility.

But he also licks his lips and cuddles Izuku closer, holding him gently, and tightly, the same way one would hold something delicate. Katsuki wasn't known for his gentility, but even his hands knew how not to crush a flower. Poetic. Shit, he's disgusting.

"Is he okay?" Kirishima was at his back, and Katsuki didn't favor him a glance.

"He's good, he's injured but not critical. Needs to calm down a bit." Katsuki answers lowly, lips brushing Izuku's temple. He's absently huffing breaths out his nose, scenting his true omega, checking on him with every breath.

"Right." Kirishima answers, and clearly picking up their social cues, lets them be for a bit.

They stand for some long minutes, too keyed up to sit down and become sitting ducks, and too tired to start moving around, or to break their embrace. Katsuki spots their classmates turning their heads a few times, looking at them, confused, and he hopes he doesn't try to kill any of them when they inevitably start asking questions.

"Kacchan," Izuku whispers into his neck, head heavy and body warm against his. The name makes Katsuki close his eyes against the wreckage of the USJ and the roaming adults tying up villains. "Kacchan, I'm so glad you're okay. I did my best, Kacchan."

"I saw the end." Katsuki says to him, rubbing a slow palm up and down Izuku's back. He, absently, wishes he could touch skin this way. That would be nice. "You did well. All Might came just in time."

Izuku sniffles a bit against him, and Katsuki can't stop himself from kissing his forehead. He ignores for now, the fact that Izuku had leapt into the thick of it again, made himself a target, pushed his stupid cute freckled nose into everyone else's business, like these adult heroes couldn't handle it without his teenage hand helping them. He breathes in, and smells Izuku.

"Kacchan did awesome." Izuku hiccups, and a familiar pride fills him.

"Fucking obviously." He scowls. "Like those two-bit villains would win against me. Fuck them."

Izuku gives an ugly watery chuckle, and it's the best thing Katsuki's heard all day.

"Uh, guys, I hate to interrupt, but we have to get going now. There's ambulances outside, we can get Midoriya looked at." Kirishima tentatively says, putting two fingers to Katsuki's back. Perhaps it was the fact that he's a beta, or that he'd been fighting alongside Katsuki this whole day, but Katsuki didn't lash out at him, even with his omega in his arms.

"Yeah, yeah, fuck off."

Katsuki breaks his hold on Izuku, who wavers only a moment before straightening, broken arm and all. He doesn't let go though, keeping a firm hand on Izuku's hip. His omega is fucking strong as hell.

Kirishima is watching them curiously, as were a few of Izuku's nerds, but Katsuki doesn't give them the attention they want. Instead, he makes sure Izuku is brought to Recovery Girl first, no questions, and sits at his side the entire time.

That night Izuku calls him, right before bed, 8:00pm. He doesn't speak, and neither does Katsuki. Instead, they listen to the way they each rustle about. Katsuki gets ready for bed, growling through his toothpaste, changing into sweats and a tank. Izuku types on his keyboard, writes some notes, quietly thanks his mom for dinner.

The call lasts for two and a half hours, before Katsuki is nearly asleep and he hears Izuku sigh lightly, gently, ending the call. Katsuki is out, with his last thought being of Deku, leaping his way into the path of that great big Nomu thing, with a villainous hand reaching out towards his face. Thank everything for All Might.

He wakes up to another phone call, and this time Izuku carefully apologizes for bothering him, but would he like to meet up for breakfast? The school is closed. His mother sends him a frustrating knowing glance when he scowls his way out the door, but Izuku is waiting at their split off corner. Breakfast is had at a small café, with their pocket money, and they spend the day wandering. They go to Dagobah and stand in the waves. Izuku tells him about how much work it was cleaning it. Subtly, Katsuki tries to eye the nerd's muscles with the rationalization that he's judging the workout, but really…just the sight of Deku with muscles was still wild.

They don't train, though Katsuki complains about it.

It's actually…nice. They don't go home until dinner, and even then, Izuku hesitantly tugs his sleeve and he, hesitantly, enters the bear's den of Midoriya Inko, to be politely, sweetly interrogated over a meal of ramen and a dessert of mochi. Then they're ushered away, something familiar glinting in her eyes that Katsuki's seen in his own mother's, and he's grimacing even as Izuku slumps in exhaustion against his bedroom door.

"Sorry about that." The green haired boy puts a hand over his face, and it strikes Katsuki that he doesn't like being unable to see freckles.

"It's fine." He answers and tries his absolute best to glare at his own mouth. That came out almost soft.

Izuku doesn't seem to notice, and Katsuki thinks he's in the clear. But then the boy is collapsing into his bed, legs akimbo, scratching the patch off his neck with an irritated mutter and Katsuki locks his knees in place so he doesn't do something stupid.

Like crawl on top of him.

He pulls out the desk chair and sits on it, annoyed vaguely that the ramen had been so good he felt uncomfortably full from his…two…bowls (he needed her recipe, but would rather die than ask for it).

Izuku is staring up at the ceiling, so Katsuki nearly misses it when a tear drops from his face to his sheets.

Katsuki doesn't quite jerk, but he does pull himself closer and plant his feet on the bed, physically shaking Izuku and poking his heels at his arm.

"S'rry, Kacchan." Izuku says through a fist, watery, shaky, like he had been in middle school.

"The fuck is it?" Katsuki asks.

Izuku shakes his head and obviously attempts to tamp the tears down, gulping in air and swallowing it to convince his body to stop shaking. His scent is turning miserable, a tainted rotting thread stitching its way into Katsuki's brain. His omega, who's hurting right in front of him.

Groaning, letting his head fall back, Katsuki takes his pride and rips it into tiny bits. Standing, he's up in Izuku's space in a moment, shoving him over and crawling to lie beside him.

"K-Kacchan?" Izuku sniffles.

Landing on his back, staring at the ceiling, Katsuki raises one arm and impatiently grunts.

Not one to look a gift horse in the mouth, Izuku crawls into his side and does his best to combine them by osmosis, burying his face in his shoulder and wrapping an arm and a leg around what parts of Katsuki he could reach. Which was all of him.

Firmly telling his alpha libido to shut the fuck up, Katsuki just holds him, putting his hand on his shoulder, and lets the omega cry. It's not too terrible.

"Aizawa-sensei was h-hurt so ba-ad!" Izuku stumbles through against his shoulder, eyelashes leaving tears behind on his bare skin. It makes Katsuki shiver, as does the boy's closeness to his scent gland.

But the subject was a bit too sore to get too far into their positions.

"He's a pro hero, he knew what he was getting into." Katsuki replies. He tightens his arm a bit, just to feel Izuku shift against him some more. It was…comforting. "He'll be fine."

"The Nomu was made to fight All Might. Shigaraki said it was made to kill him. Who can just…make a monster like that?" Izuku whispers, and that's a chilly fucking thought.

"Shut up." Katsuki says, turning his head so his lips meet a wrinkled forehead. He nudges until the furrows release. And Izuku presses up into the caress, which does shit to Katsuki's heart he doesn't want to deal with just yet. "That shit isn't important right now. Those villains did what they did, and we lived. That's all."

"That's all? But..." Izuku's voice still wavered.

"No, I mean it. That's all." Katsuki puts his other arm up behind his head, stretching to get more comfortable. If he's gonna get cried on, he might as well be comfy. He moves the hand on Izuku's shoulder into green hair, and the scratching at his scalp turns Izuku into green mumbling mush. Reaching around behind him awkwardly, Izuku snatches at the covers, the other pillows, the blankets, and tugs them up around his own body and Katsuki's, almost purring. Was he nesting? Katsuki didn't want a nest, but well…it was Izuku's bed. (Maybe he did).

"Okay Kacchan." He sighs eventually, hiding his nose against Katsuki's shirt. "Okay."

That night when Katsuki convinces himself to leave, Izuku is half asleep on the bed and curled up under his arm like he was made to fit his side. Slipping out was a struggle, because when his warmth started moving away, Izuku reached and tugged him back, the strong little fucker didn't seem to care that Katsuki wheezed at the sudden loss of air in his lungs.

"No." Izuku grunts, upset.

"Let me go, fuckhead." Katsuki wants to snap, hit him, wriggle his way free so he could blush outside in peace. Instead, the long hours of cuddling (ugh, "cuddling"), had removed all his bite and he just pets his hand across fluffy green hair.

"No…" Izuku whines this time, turning watery, and for fuck sakes, Katsuki didn't want to deal with this. Izuku has his short fingers locked into his hoodie, so Katsuki just ducks his way out of it entirely, leaving Izuku to clutch it close and stick his nose in the dark fabric.

The fucker just hums, pleased, and works his way further into the weird collection of blankets and pillows he's piled around himself.

Katsuki hears a great big gong ring, but maybe that's just his brain rattling in his skull, looking at the omega in his nest with his hoodie pressed tightly to his face, half covering him for warmth.

Oh, oh dear.

Katsuki barely speaks to Auntie on his way out, mouth screwed shut and only in his tank, arms bare. He feels naked.

When he goes to sleep (later than he'd like), Katsuki has visions of Izuku not only cuddling in bed with his hoodie but wearing it.

Fuuuck.

Chapter End Notes

lolol I'm having a blast. I feel like Katsuki's not enough of GREMLIN so far, but honestly, we're catching them in soft moments...

Six

Chapter Summary

"Promise me." Katsuki says lowly, dark. "Or this isn't gonna go anywhere." He doesn't elaborate what 'this' is, but Izuku gets the drift. He gulps.

Chapter Notes

See the end of the chapter for notes

Two days later and Class 1-A is sitting in their classroom like a hoard of villains hadn't tried to assassinate them all not forty-eight hours ago. They're slightly more subdued, chatting quietly, and Katsuki is staring hard through the blackboard. He's both thinking and not thinking about that morning on the train when he'd stood close to Deku and marked him yet again with a brush of cheekbones.

Fucking hell. Can he think of literally anything else other than the nerd??

"I have a question, Bakugou-kun." Asui, frogger, says in that same blunt tone she always uses. Her voice cuts through the babble. Katsuki hates it and also admires it. "Are you and Midoriya-chan bonded?"

The question rockets around the classroom with people blushing, or gasping, or wiggling their eyebrows like idiots. Katsuki is immediately angry about it, snarling, not wanting them all to be looking at him like that, to be looking at Deku like that—

"Who's fucking business is that, frog, fuck right off!" He shouts, and his palm sparks.

"It's just a question." She croaks, unbothered by his combativeness.

"Uh, wha-what?" Izuku stutters, blushing hard, scratching at his cheek and sitting primly. "Wh-what makes you think that, uh, Asui, er, Tsuyu-chan?"

"Don't fucking respond to them, idiot, that'll just make them want to know more." Katsuki grumbles, sour, loving that whatever the rest of them were going to say is cut off by Aizawa sliding the door open with his bandaged arms.

And then all thoughts of the nerd and his cute omega ass are wiped out by the excitement and thrill of the sports festival. Cause Katsuki? Katsuki's gonna fucking win.

Their training is tough, it's long, and Aizawa cares not for excuses. By the time the morning of the festival rolls around, Katsuki feels like he's bulked up even more, like his quirk is at its peak for the moment, even if he has to be careful without his shoulder supports, or his blasting gloves. Quirk overuse would be ridiculous at this point in the game, he was a hero student, and Katsuki has worked too fucking hard to be stuck behind on something as embarrassing and stupid as not using his quirk right. Dunce face had to figure that shit the fuck out, it was embarrassing.

Katsuki would be caught dead before he couldn't control his own quirk.

That's what he was fucking challenging. "I'm gonna place first." Try and stop him. Give him the fights he wants. He needs to prove it, needs to prove himself. He wants to.

But then, shit happens. Absolute shit.

Katsuki is sour. Here he is, waiting again, for Izuku to wake the fuck up. The clinic is musty. The medal he "won" is clenched in his fist so hard the engraving is being pressed into his skin. The very memory of waking disoriented from Midnight's scent quirk itched under his skin. He'd already gone through the whole song and dance of shouting, railing, going fucking feral because they needed their goddamn fucking show ponies on their pedestals, the sickness prevalent in hero society, the personality competition…fuck that.

All their precious press images are going to be of Katsuki chained up like a beast and snarling about it. His jaw still hurt from the muzzle that had welded it closed. The goddamn fucking picture of a feral alpha, monstrous and destructive and all of UA's sins wrapped into one.

If it didn't impact his own hero career, Katsuki would be smugger about it. As it is, here he sat with his omega unconscious once again because the little fuck didn't fucking care that his quirk was wild and uncontrollable.

On a fucking road of good intentions, Deku was looking at a very, very brief hero career. It'll only be a wonder that he's alive at the end of it. Alive, crippled, and unable to continue saving people the way he wants. Unable to meet Katsuki at the top.

Katsuki pins his lips shut on a snarl, unwilling to provoke Recovery Girl anymore than she already was.

The obstacle course was awesome.

A race, where only one was the winner, it was perfect. He'd flown along at the front, dominating, fighting only with that stupid half and half fucker who had challenged Izuku of all people in the change room. The massive explosion and subsequent flying omega had unnerved him a little, because his first instinct was to reach out and catch the damn idiot.

Izuku planting his shoe in the middle of his back to launch himself forward to win that race was just beyond frustrating. And actually, got him a little hard, which was not the time. Little fucker is good at crossing all of Katsuki's wires.

He won that one, and then he was worth a million points. Perfect, he'd thought. He'd win this.

The cavalry fight was a blast, and while his idiots weren't the best, they held their end of the deal. But again, Katsuki didn't win like he wanted to. It raged inside him, clawing even now, at the fact that he kept not measuring up.

He followed Izuku when that Half and Half fucker asked for him. Of course, he did. It wasn't any of his fucking business, but hell, he wasn't going to let the fucker get a lick or two in before the next challenge. Deku gets the shit kicked out of him on a good day, it wasn't gonna be today.

Endeavor.

There's a sour taste in his mouth. Disillusionment tastes rotten.

But fuck, he knew what this would cause. Izuku would get his soft little heart all tied up in Half and Half's business. Half and Half didn't even realize what power he was giving Deku here, talking on and on about his sad sorry little childhood (fuck, dad, and mom? Shit. No wonder he's a fucking tragedy of a teenager), how he was refusing to use half of his quirk out of some petty personal motivation.

Katsuki had his own opinions, and he bet they were along the same lines but less disgustingly kind than Izuku's.

The fuck would he do when in the field? Not use his fire to save someone's life? Let them die, just foe his pride? He was a lot more like his father than he thought, though. Blinded so badly by his own trauma here he was ignoring everything and anything else.

Kids are reflections of their parents. Katsuki knew that. His therapist knew that. It's why Katsuki was so rough "tough love" and all that. It's why Izuku was so soft and weepy, coddled like he was by his own mother.

What the fuck ever.

Katsuki rubs his hand over his eyes, the other holding the metal hung heavy and ignored. His back was aching. His shoulder were strained (healed, but now just tired) from using his quirk so much today. All day, practically. Sucking in electrolytes and food, he'd been right on the cusp, especially with that Howitzer he let off, and the excess explosions he'd burst out at Half and Half at the end of the tournament. Ugh.

The fucking tournament.

Round Cheeks had proven her shit, if she was a little physically weak, with low endurance. Shitheads in the audience didn't know what they were talking about.

Aizawa set them straight.

Deku had fought that brain fucker. (Ugh, not that, that sounds gross. Mind fucker? No. Eye bags.). Izuku fought Eyebags and nearly fucking got stuck in his quirk, the idiot. How dumb do you have to be to walk into a fight knowing the trick of it, and still falling for it? The vortex of wind that rose up around him was pretty sick. Just from a flick of his fingers? Sick.

He bets the fingers are broken, though.

The other fights are only as interesting as they expose his possible opponent's quirks. Bird Head is pretty fast, took Ponytail out quickly. Fucking Shitty Hair met his ugly twin and they just wailed on each other…no fucking strategy, no kicks, no pivoting, nothing. Idiots.

He's not even gonna mention the travesties that were Glasses, Dunce Face's, and Tape Face's fights. All this time they were in the same class, did they learn anything?

That iceberg was stupid, though. What a waste of energy. Just for Tape Face? Fucking right 'don't mind'.

And then Deku fought Half and Half.

Half and Half had shown his strength with first that ridiculous glacier, but then…by using his fire. Whatever drama that went down there, they couldn't hear words. Only the motions. And Izuku was getting emotional about it. Angry, commanding, strong, his omega was demanding a fight, an equal fight, and he got it.

Izuku had been blown out the ring, broken arm and everything, with scars now because of the half and half fucker. Couldn't control his quirk. Both of them. But it looked like the fight of their lives.

Not Katsuki. Half and Half had wimped out, been distracted, refused to fight him. The fucking fake ass fight. Was Katsuki not enough? Was he again, not worth the same as Izuku?

Old thoughts creep in, and he growls, choosing to breathe in deeply through his nose this time, sift through the old people smell and the clinical sterilization, and find Izuku. Being quirked hadn't changed his smell. Wet, fresh earth, sweet mellow candies, the smell of the air before a lightning storm. And the healthy thrum of whatever mysterious damn bond connected them.

His omega. Who was, arguably, stronger than him? He's turned on by that, just as much as it's a huge frustration. His omega, strong as fuck, but only if, and that's a big if, he could stop breaking his fucking body.

Izuku stirs, right on time. And Katsuki gets up into his space, putting his hands on either side of his head and glaring, until Izuku blinks open his eyes.

The first thing Izuku does is twitch, then focuses on Katsuki, and an unguarded, sweet little smile starts playing at his mouth. Then he takes in Katsuki's expression, and the smile drops. Katsuki's going to ignore the feeling he gets in his stomach from seeing it in the first place, though, and snaps his fingers twice in the stupid nerd's face.

"Deku. You will not break yourself anymore. Figure it out. You get me?" Katsuki says. He feels ugly with rage, a deep poison in his stomach feeling ready to spew outwards, but he has more control now.

Taking in his glare, his mean glare, Izuku nods, quailing.

"Promise me." Katsuki says lowly, dark. "Or this isn't gonna go anywhere." He doesn't elaborate what 'this' is, but Izuku gets the drift. He gulps.

"I understand, Kacchan. I promise."

Katsuki backs off, lets Recovery Girl at Izuku, who deserves to hear every sharp word, damnit, and paces outside the door.

All Might shows up, and Katsuki glares harder than he ever has in his life. He snarls, his teeth are too big, and he snaps them, arms crossed and clutching with nails digging into his own skin. All Might pauses. A vague understanding crosses his blue eyes.

"Young Bakugou?" All Might asks carefully, one hand on the doorknob to the clinic. He was gonna go talk to Izuku, Katsuki could tell. Praise him maybe. It makes Katsuki sick.

"He can't handle that quirk." Katsuki says lowly, watching the realization click over All Might's face. Yeah, All Might, he knows. "Whatever you're teaching him, it's wrong. Fucking…fix it." He turns away then, and All Might doesn't speak again, just opens the door to Recovery Girl's voice and Izuku's sheepish one, stepping inside.

Grunting, Katsuki shakes his head and wonders at himself. Did he really just display at the alpha All Might? Shit, he's territorial as fuck.

Izuku is quiet that walk home. Hesitantly, just once, he reaches out for Katsuki's hand, but he doesn't even twitch to accept it, and Izuku lets his drop.

That's okay. Because Katsuki grumbles before they split, and scents Izuku with his chin, and it makes the omega close his eyes. Inside of Katsuki, a lot of him wants to lean forward and…do things. Not sure what the things are, but they involve Izuku's face, and Katsuki's face, and yeah, he's just gonna go.

Long fucking day.

"Later, nerd." He grunts, sucking on his teeth loudly, but not loud enough to lose the sound of a sighed, "Bye, Kacchan."

Chapter End Notes

woooo~

you know, I wish sometimes I was capable of long-fics, but damn, they're so much work. I bow to the long-fic writers.

Seven

Chapter Summary

"Are you telling me," He starts quietly, dangerously, "That when you thought you had a lead on where the hero killer was, that you simply…ran off?"

Chapter Notes

in light of me finally submitting my coding project HERE HAVE MY FAVORITE CHAPTER YET! LIGHT ANGST! COMMUNICATION! SMUT! IT HAS IT ALL

Something had happened with Glasses, is what Katsuki can tell. It's distracting Izuku so much he barely describes the hero he's gone to work with, but he assumes the silence also has to do with the way All Might has been hovering like a concerned parent.

A whole week to learn from a pro. The 4th in the list! He'd expected fights, advice, working with and against the pro heroes. But the first thing he got told upon arriving was 'Keep your cool, you have to present an image, the public has to trust you', and for fucks sakes, he will never be the smooth-haired jean-wearing snob that Jeanist was trying to make him out to be. Not ever. At least pretend that Katsuki's image was gonna have to deal with his personality?! But no. Wear the jeans. Behave appropriately. Don't make children cry.

Fucking hell.

Izuku texts once, and it's a little smirking bunny emoji, and he wonders if the dork knows how suggestive that is. He doesn't send anything back, they both should be busy. Learning.

Katsuki thought he was having a hard time with Best Jeanist.

Then he gets a phone call on Wednesday, the middle of the fucking intern week, to listen to Izuku babble and apologize and a mention of Stain, and Endeavor, and another Nomu and fuck, fuck, fuck, he's too exhausted to have this conversation properly. He's gonna say something he doesn't mean.

Maybe Izuku deserves it this time.

"Are you telling me," He starts quietly, dangerously, "That when you thought you had a lead on where the hero killer was, that you simply…ran off?"

"There was no time!" Izuku claims. "Iida-kun was on a rampage, and I could only just follow where he might have gone, I had no time to grab a pro, I needed to be there for Iida before something awful happened! And I did! I sent our location out to the group and Todoroki-kun came to help us…"

"Oh, so you sent out a group chat. Great. That's awesome." Katsuki's sarcasm is cruel, and he knows it.

"Kacchan, I helped!"

Listening to Izuku through a phone was…wrong. It wasn't enough. As much as he could imagine green eyes entreating with him, pleading, burning with the fury of the feral fucking animal Izuku became at times, it wasn't right. Katsuki could only see the frail Izuku. The helpless, sweet, bullied Izuku who curls up in blankets and hoodies. And Katsuki's angry. He's so angry.

"I don't fucking care if you thought you helped, did you or did you not run into a fucking dangerous situation without a goddamn clue about what you were gonna do about it?!" He nearly yells.

"You keep doing this!" Deku cries, frustrated, near tears. Katsuki wonders if he has his precious friends nearby, his Glasses and, he guesses, his new IcyHot. "You keep ignoring what good I've done, each time, demanding I apologize and not do it when it's the best thing to do. These awful things just keep happening, Kacchan! And it's like you still don't think I'm gonna be able to be a hero!" He pants, angry. "I'm not quirkless anymore Kacchan, I thought you got over that particular complex!" Oh, ho, ho, little shit is asking for it.

"I don't think that, idiot," Katsuki grinds out, his jaw aching with how he was gritting his teeth. His hand clenches outwards, flexing. They're clammy. The last thing he needs right now is to explode Jeanist's fancy little agency guest room. "And we're not talking about my inferiority complex, we're talking about yours."

"I…I don't have an inferiority complex!" Izuku gasps, almost hurt, and he doesn't have the fucking right to be hurt not right now, not when Katsuki was seconds away from raging. They're just talking past each other at this point.

"You fucking do!" He snarls, "When was the last time you went to your therapist, huh? Betcha she says the same thing!"

"That, that has nothing to do with this!" Izuku cries, and it rings wrong in Katsuki's ears. Was he lying to him? Was he not seeing his therapist? And why the fuck not?! "But every time something bad happens, and it just keeps, happening, Kacchan, you pull the whole alpha card on me and I—"

"When have I ever pulled the alpha card? Are you fucking kidding me?!" Katsuki responds, beyond insulted. He's pacing now. His hands are shaking. Izuku isn't listening to him. He's…he's… "I'm calling you out on your fucking martyrdom, you dumbass, you're going to get people killed! You're in the hospital. Again. You fucking promised!" And that rasped a little too painfully against his chest as he said it. He wasn't listening.

"You promised too!" Deku is crying now, hurt sobs that give Katsuki a second-hand ache, "And I thought we've been getting better, we've…we've been…" Katsuki can't hear the end of that sentence, he's not quite ready. Not when Deku was calling from yet another hospital bed.

"Deku, I am trying!" He shouts. He glares at the wall, mean about it. He can only see bandages in front of his eyes. "Are you?!" And fuck what was he asking for there? He didn't quite know, but he needed to ask it.

It silences them both.

And Katsuki can't handle it. He growls, swears too loudly, and hangs up without saying goodbye.

.

.

Until the day they return to class there is silence. Its not hurtful, not quite, but it tests him. Katsuki, damn himself, has gotten used to Izuku getting all up in his business at all hours of the day, a needy little thing that wants constant attention, to talk, to scent. Ignoring his own instincts, Katsuki's been a grumpy little asshole for the entire week. He's thought long and hard on what to say, what to do. His plans change depending on his moods, sometimes he's (blegh) missing the nerd, so he's more lenient, sometimes he's so utterly fed up he imagines utterly laying into Izuku and forcing him to…

To what? Stop saving people? Stop throwing himself into trouble, thereby standing aside and letting shit happen instead? If Katsuki wouldn't do it, he can't really demand Izuku to do it. If he tried, he'd become that exact alpha stereotype Izuku had cried out about, had railed against (not that he was one, but…but fuck, was he?). He'd be that alpha, controlling his omega, forcing him to stay home, keep house, bear children. (The very thought filled him with unease).

Like hell.

Katsuki contemplates going straight to school, to his desk, but finds his feet stopping and his body waiting without his goddamn permission at their corner. He swears at himself, calls himself a fool and an idiot, and several other terrible things.

But then, therapist speak filters into his head to coach him out of a spiral, show him his own feelings, make guesses (but informed ones) at Izuku's, and he knows, damnit, he knows. It's hard. It's so hard.

And his arms ached. He hadn't…hadn't held the brat since the USJ had been invaded. Fucking disgusting, what the hell does the bond do to him?! (Ignoring the many proven research studies that show a true-mate bond has a negligible effect on personal free-will).

"Kacchan?" A soft voice breaks him out of his thoughts. Izuku was beside him. At his arm. Big wide green sorry eyes.

"I'm sorry. I'm struggling with having this quirk, and I keep getting into messes that adults should be dealing with. I can only say I felt like there was nothing else I could do. And I'm sorry too, for pointing fingers at you, you've been doing really well. You don't use your alpha against me, I just keep thinking you will and that's unfair, you never have. I want to make you proud, but I also…I guess...still want to win against you. So, I'm sorry." He's clenching so tightly to his backpack straps that his knuckles are white, and Katsuki looks along the lines of his scarred, knobby hands for probably the hundredth time.

Figures.

The nerd always managed to get to the heart of it, like admitting his truths wasn't a problem for him. His scent was muted, but still open for Katsuki, and god, how he wants to taste it.

He draws Izuku into his arms roughly with a fist in his shirt, staring out over his shoulder, and tries not to tremble at the feeling of a little nose naturally coming to rest under his gland. Green hair tickles his cheek.

"I get it." He grunts, finally. He does get it. He wants to win against Deku too. "Same." It's a weak apology, but it's there. And he could say it this time while looking Izuku in the face.

Sighing. Tension he didn't realize he'd been carrying was seeping out of him, and his shoulders fell from their protective hunch.

They stand still for a moment, cuddling in public for fuck's sake, until Izuku shifts in his arms.

"Kacchan…your hair…" he whispers, and his breath tickles Katsuki's neck.

"Don't say another word." He answers, pretending he didn't hear anything. If he didn't acknowledge it, it wasn't there.

He feels Izuku curl his lips into his mouth to keep from smiling, and chooses to squeeze him tighter in response, tight enough he squeaks.

Katsuki knows they'll have to go over most of that shit again, without the blind rage of having a phone between them, and see how they do. But right now, when Izuku shuffles his feet and huffs a happy little noise under his ear, he's content enough.

Without permission, again, one of Katsuki's hands crawled up to grasp Izuku's cheeks and squeeze them together. He lets him, for some reason, content to blinked confusedly and let Katsuki have his way with his chubby little cheeks. If anyone did this to Katsuki, he'd murder their ass. But Izuku just, rolls with it. Perhaps because it's Katsuki.

Anyways, whatever, he's got the cheeks, cute little wet mouth puckered up like a kiss, like when he'd bloomed. Something fundamental in Katsuki shakes.

He leans in, a quick swoop, and Izuku's eyes widen.

Turning the omega's head sideways just in time, Katsuki swiftly kisses the cheek and a bit of his own thumb, then lets his nose brush over the curl of an ear. An ear that was rapidly blushing pink, and the cheeks were warming under his fingers, and those freckles were being decorated with red. His heart jumps, and it's become familiar. It was so easy to be confident with Deku, the nervous little virgin (ignoring the fact that Katsuki is equally as inexperienced).

"K-Kacchan..." Izuku says, and it's stupidly cute, and shy, and coy, and ugh. Katsuki hates sweet things, but goddamn, he'd eat this one.

Izuku is at his elbow the entire way to school, and this time Katsuki didn't feel a single singe of irritation with it.

It doesn't take long for the idiots to stress him out so much his hair POFFS back to normal. Yelling, threatening, none of it has much effect on this class (he's not thankful), so instead he just gets giggles and laughs, all good natured. He snarls and bats at Kirishima's stupid friendly manly arm instead, at least until Aizawa shows up in a shuffle not unlike the walking dead.

Looks like Icyhot had been absorbed into the nerd squad. Katsuki eats his lunch and glowers at the stupid prick who wouldn't fight him, but would fight Stain and Deku, eating his ugly cold soba (soba should be hot) at Deku's side.

"Dude." Kirishima laughs, nudging him with an elbow. "Lay off on the territorial pheromones, you're pumping them out like party favors."

Katsuki focuses, realizes that he is, but pretends he isn't. "Fuck off." He shovels his yakisoba noodles drenched in spice into his mouth.

"You know, you could probably just ask Mido to hang out with you? He would." Shitty Hair says enthused, and both Mina and Sero give him obnoxious supportive thumbs up.

Katsuki hates them.

.

.

Several nights later, Izuku was being hustled into the Bakugou's house by an ecstatic Mitsuki, and Katsuki was snarling at her, bunching his omega up under his arm and hauling him bodily upstairs.

"No nooky!" Mitsuki shouts after them, and Katsuki burns bright red.

"Shut up woman!" He screams down the stairs and closes his door with a loud smack. He can still hear her cackling from behind it. Putting his hands on the wood above his head, Katsuki huffs, trying to relax and stretch out his shoulders.

"...eep." Izuku makes a noise behind him, and he's then being swamped with omega scent that smells just a bit too excited.

"Shit. Deku." Katsuki coughs, biting his own cheek. He wonders if it's the bright spot of pain or the delicious fucking smell that's making his mouth water.

"Sorry, sorry, I got embarrassed, and then I started hiding, but the patch caught on my sleeve and it slipped, and then, oh my god, oh dear, um, here, here we go, haha," Izuku starts nervously muttering then after reapplying the patch, ranging from "Auntie" to "Kacchan with his shoulders is too much".

Ah, a peek into Deku's little omega brain. Likes his shoulders, did he? Of course he does. Mildly smug, Katsuki swaggers to the bed and joins his…omega. He should really get a handle on that. Still. Just the thought. 'His' omega. It soothes whatever ancient beast resides in his alpha, and so long as he doesn't fall down the spiral of truly believing it (not without full, consistent, enthusiastic consent), it would be just fine.

Instead, he turns around and eyes Izuku for a second. The energy in the room gains a bit of tension, as Izuku picks up somewhat on his intentions. 'No nooky!' the hag had shouted…but maybe a little bit of nooky?

Fuck, did he just think that? He flushes. Izuku is alert though, perhaps he could smell the change in Katsuki's scent.

"I'm going to do a thing." Katsuki says to Izuku, still pink in the cheeks. "If you don't want it, just, fucking punch me…or something."

"Okay." Izuku responds too quickly, bright eyed and sitting straight as a ruler. Katsuki didn't want that, so he puts a hand on Izuku's chest and pushes him flat to the bed, and (oh wow), that's several fantasies brought to life.

Then he leans down, half awkwardly perched on the side of the bed, unwilling to put himself on-top-of Izuku quite yet, and he leans in.

He kisses Izuku for the first time, on his bed, with the strong little omega breathing like a horse through his nose. It ruffles Katsuki's hair. He'd snort if he could, but he was busy tasting mouth.

"Stop breathing like that, you idiot." Katsuki pulls back to say, before diving down for another. Lips were weird, he thought, weird and soft and kissing was weird but soft, and each time he went further, Izuku just kept opening up for him. This was addicting.

"But Kacchan," Izuku gasps into his mouth, and he ends up kissing a tooth. "I can't breathe if I don't!"

"Through your nose slowly, stop being so nervous." Katsuki licks Izuku's lip this time, and he jumps. This was a weird sort of power, an odd control over Izuku's reactions, but god, it was good.

Shit, was he hard? He had to pretend not to be hard. Not over a little bit of kissing. Trying to peer out of the corner of his eye whilst kissing Izuku to see if he was hard, or (fuck) wet, Katsuki slips and ends up kissing along a cheek. Confidence, confidence. Izuku hums like it's good so he continues to kiss freckles, and Katsuki flushes with heat. He's already failed in staying off Izuku, he's half-crouched over him, elbows up near his head.

"How can I not be nervous, you're so amazing. Kacchan, sugoi." The words are genuine, even awed, and call back a lifetime of memories of hearing just that. Of a tiny green haired floppy, weak little omega following him around and truly admiring him, no matter what he ended up twisting it out to be in his own mind. Eventually, Katsuki might even believe him.

And it's good.

"I don't use the alpha card, but what if I did?" Katsuki breathes, a little shakily, against plump wet lips. Izuku, eyes wide, is breathing like a rabbit, shallow and fast, but he's attentive and interested and Katsuki almost can't handle looking him in the eye.

So Katsuki gets real close to Izuku. Right up to his ear, so their cheekbones brush, so he can feel how Izuku shivers.

And he growls.

It was supposed to just make him gasp, make him giggle maybe, blush. An alpha's growl (not just a normal growl, this is legit) is deep instinct, it's not approved in polite conversation. Katsuki has always lacked care about his voice, grumbling and snarling as needed, but even he didn't growl at strangers. That was…sensitive…intimate. It was for families, mates. So, when he lets out air and makes it vibrate through his throat, pressing closed with sharp teeth to Izuku's vulnerable little neck, he's unprepared for the response.

The reaction he gets is phenomenal. Izuku damn near vibrates out of his hold, arms grasping at Katsuki, legs falling open wide, head lolling to the side to bare his throat, and he straight up whines, shuddering, knees fluttering by Katsuki's hips and holy fuck, holy fuck, holy fuck, the surge of scent right there nearly made Katsuki's eyes cross.

The whine is too loud. Katsuki claps a hand right over Izuku's mouth and waits, staring wild eyed at him, as he waits for an incoming parent.

No parent arrives. Perhaps they're watching TV. Safe.

Now he can focus on how he's smothering Izuku with his hand and Izuku has only let himself be smothered, pink high in his cheeks, and pupils blown wide.

"You liked that?" Katsuki asks. He wanted it to come off suave and sexy, but really, he was a little shocked.

Izuku nods against his hand, eyes hot. And oh, well. This was dangerous.

Katsuki lets his hand slip, kisses him again, but this time Izuku's hands reach up and drag him closer, close enough that he just lets his legs slip down to let him rest heavily along Izuku. One of Katsuki's knees gravitates between Izuku's and the omega is gasping once more into his mouth. Then he licks upwards into Katsuki's mouth, and it's a slow drag that makes them both grunt.

He can say all he wants about Izuku, but he's a damn fast learner.

.

.

By the time Mitsuki calls them downstairs for dinner, Katsuki has been sitting on one end of the bed and Izuku on the other for at least ten minutes, their hearts slowly pounding down to normal. Hot eyes locked on one another. Lips smarting. Neither of them had reached an orgasm, and if you asked Katsuki, that was for the better (despite his teenage soul crying out to come, he can handle that later, the fact that Izuku hadn't been able to tear his eyes away from him was almost as good).

Izuku would want him more now.

Katsuki licks around his mouth again, tasting just the tiniest aftertaste of Izuku (which didn't taste like anything more than 'other person'), but it was the thought that they'd spent the last hour tasting and grinding and hotly breathing against one another that got Katsuki so edged. Izuku had moaned into his mouth, tongue darting out to taste him, legs parting, and Katsuki had felt alarm bells ringing as loud as the bells that said yes-his-omega-mark-his.

So, he'd dragged his stupid heavy body from Izuku's, bit at the grasping hands and the disappointed whining noises and sat far enough away he wouldn't be tempted to continue touching.

It took a bit for the dazed look in Izuku's eye to pass, for the horniness to drain off just enough that he bit his lip and smiled shyly. How can one person be so sweet and innocent and still moan into his ear like a little fucking wh—

Katsuki coughs, because he has to stop thinking about it or else risk a permanent erection. And he's hypervigilant at dinner, trying to ignore both Mitsuki's teasing, Izuku's blushing, and his dad's annoyingly knowing gaze.

Eight

Chapter Summary

"I leave him with you for one day!" Bakugou snaps, hand clenched tightly in green hair. His gaze includes both Kirishima and Uraraka, who feel the same hot shame sear in their stomachs.

Chapter Notes

Lets have a bit of a mix up of perspectives! and more smut!

Uraraka is clutching Izuku's hand between both of hers. Just the sight of his neck, free of those awful fingers, is a relief. He's been trying to tell her that it was okay…her! Who had run off because of a stupid, silly reason and left him abandoned in a large mall with villains all on the loose, and, and…

And Izuku rubs his thumb over her knuckles with a gentle smile, soft and generous and far too good. As much as she's stuck by him, through the police interviews, he's been rather tight-lipped. It's understandable, he'd just been targeted by one of the worst villains out there! In a space so full of civilians and helpless people, that's what Izuku said, that he didn't want to make too much of a fuss, or else Shigaraki would have hurt more people than just him.

Not that he was hurt, but, if it had happened. It just makes her feel sick.

"Get out my fucking way, extras!" Bakugou's voice rises up unpleasantly over the nearby crowd of reporters, and the cameras start flashing at a higher frequency. Uraraka watches in real time as Izuku perks up, face brightening.

As the crowd step out of his path, since not even reports would mess with the look on his face right now, Bakugou looks odd to her in his regular clothes. Like a character outside of his costume. A large black hoodie, baggy black pants and…sensible loafers?

Izuku shifts at Bakugou's imminent arrival, the shock blanket Uraraka had bullied him into falling into his lap.

"Bakugou!" Kirishima calls, arm up, and when the explosive boy's face zeros in on Izuku and his blanket and his little relieved face, Uraraka knows he already knows what had happened.

"Deku." He growls, and it's almost mean, except when he gets close enough, Izuku is jumping out of his seat and stumbling over the blanket to stick his nose in Katsuki's neck. He's locked down immediately in the other's arms, and Uraraka and Kirishima are left looking Bakugou in the eye. Red, piercing eyes that were full of…of…

Blame.

"I leave him with you for one day!" Bakugou snaps, hand clenched tightly in green hair. His gaze includes both Kirishima and Uraraka, who feel the same hot shame sear in their stomachs.

"Kacchan!" Izuku grunts against his shoulder where he's being held. He sounds both exasperated and irritated. "I can take care of myself!" He's wiggling, trying to lean back and probably scowl, to defend them. Uraraka didn't feel like she deserved it.

"That's not the point, you weren't supposed to be by yourself and you know it." Bakugou doesn't let Izuku go far, he hasn't looked away from either the shamefaced Kirishima or the ill Uraraka.

"I know it's an excuse, a weak one, but we never thought…" Uraraka starts, but it falls flat from her mouth. There was no point continuing, it didn't matter. Not with something like this.

"Tch." Bakugou replies, and he's demanding. This time though, Uraraka doesn't find it as off-putting, another alpha looking down on her (he doesn't, the festival proved that, he thought she could fight…). This time, it was because Izuku was in harms way for no reason.

Being ignored didn't sit right with Izuku, who pinches him hard enough he flinches. Izuku draws back, and snaps his omega teeth, baring them up at the alpha with a viciousness they rarely see outside of physical fights. Blinking, perhaps a little stunned, they're in prime position to see the charmed smile steal across Katsuki's face, and the defeated eye roll that must mean he's capitulating. Then Izuku is nudging Bakugou's chin upwards with his nose, huffing out an annoyed breath and tugging at the cloth of the hoodie.

Averting her gaze, because this felt private, Uraraka shared a commiserating look with Kirishima. She wonders if one day, one day, she might have a connection like that.

"We'll do better, bro." Kirishima says. Clenching her fists, Uraraka nods.

"Yeah? Well, you better." Bakugou snorts at them both, but this time it's not full of blame. For someone so hot-headed, he forgave very quickly.

"Kacchan," Izuku groans, childish and silly, red shoe kicking lightly at Katsuki's shin. "Leave them be!" Was this how they behaved when they were pups? She could see it. She thought they would be the absolute cutest children, Bakugou all serious and determined, Izuku the sweetest and kindest. Always together.

"Hold still, you fuck. Your mom's almost here, I was just closer." Bakugou grunts, stretching to remove the hoodie he wore and then stuffing Izuku bodily into it with a sharp grin. He's left in a tank that bares his muscular arms, but that's nothing new. His hero costume exposes almost more, streamlined for quick explosive motion forward and heavy leg kicks. What's more interesting is the playful glint in his eye.

Instantly muffled, Izuku mumbles and struggles, but Bakugou doesn't let him free. He ties the empty hoodie sleeves in a knot, leaving Izuku in a burrito of alpha-scented fabric that he didn't fight very hard to leave. He wriggles his head up to the neck hole and glowers pitifully from within like a trapped kitten, and it causes them to all laugh. Even Izuku.

Uraraka feels the horror of the day release, just a bit. If they could laugh now, that meant they would be alright.

Well, Bakugou doesn't laugh, he just snickers and pokes fun. Pushing Izuku around playfully with gentle arms, who toddles and whines but clearly doesn't mind. Witnessing the usually sour, frustrated, loud, and rude boy acting so silly was…good.

.

.

Izuku pouts on his couch, even as his mother and Katsuki go back and forth about how he's always getting into trouble, he's so reckless, what are they going to do about him?

Honestly, it's not his fault. Not completely. And they're joking about it now, laughing. Izuku wants to know how Katsuki does that, relieves the tension in the air. If it had just been him, he and his mom would've had an awkwardly quiet dinner and he would have gone to bed feeling guilty.

Now, his mom is shooing Katsuki away from the dishes cheerfully with her drying cloth.

He wonders if it would have been better if they weren't friends. It was weird. Kacchan was friends with his mom.

Maybe he should be friends with Auntie Mitsuki and Masaru. That would show him. Then he gets a flash of how embarrassing Auntie Mitsuki was the last time he was over. The last time he was over. When they made up after the fight about Hosu.

Katsuki is at the couch in time to catch Izuku's sudden flush, and the angular eyebrow he gets is full of laden meaning. What's worse, is when Katsuki grins, sharp and predatory and smug, Izuku can feel his cheeks blush hotter.

It's just gonna add to his inflated ego, Izuku tells himself. Pretend it doesn't affect you!

He's about to stutter something about a movie when Katsuki's red eyes drag like a physical touch down the length of his body, then up again. He quirks his chin towards the hallway, where his bedroom is, and all his aspirations to be pure-minded and keep Katsuki humble?

Yeah, less important than whatever that half-smirk promises.

They don't rush because that would be obvious.

"We're gonna go study, Auntie." Katsuki says, confident and seemingly unaffected.

In comparison, Izuku was bright red and unable to speak, he just knows he's going to stutter, or shout something embarrassing. He and Kacchan get to his bedroom, and the alpha sets immediately for the bed, collapsing with a tired sigh. Izuku picks at his patch, wanting it off after such a day, he didn't want anything on his neck right now.

"You know, I am serious about today, Kacchan, it's not anyone's responsibility to keep an eye on me. I know you're not being sexist, but it comes off that way." Izuku says to him, even as he's closing the door and sliding the little scent-blocker strip his mother had installed at the foot. It was meant to help keep his heat pheromones in his room and not in the apartment, but it worked well enough to block out their…cough…sex scents. He crosses to the window, and turns the blinds just a bit, so the light of the setting sun shines up to the roof and turns the atmosphere gentle and quiet.

"The hell you talkin' about that now." Katsuki scowls, throwing his arms up behind his head. It causes his shirt to ride up and expose his lower belly, and the delicious cut of his hips that leads down into…

Well. Izuku flushes. Without his scent patch, it heats up the room a bit, and Katsuki peeks out of one closed eyelid.

"I do get it. I'm not being fucking sexist." There's a beat of silence, and Katsuki's eyes open. "Am I?"

"Well." Izuku says, thinking about it. He doesn't want to accuse when it's not there, he knows Kacchan didn't truly believe that, but it's better that they put it out in the open. Absently, he starts taking off Katsuki's hoodie, clutching it close and putting it where it needs to go, up at the head of his bed next to his pillow. Then he starts to fuss with the blankets Katsuki is lying on, tugging and yanking as needed. He doesn't ask the alpha to move. "Did you ask them to 'do better' because I'm an omega and because of it unable to protect myself? Like I'm a child?"

"I don't think so. Maybe a little bit?" Katsuki's nose wrinkles. "That's fucked. And stupid." He lifts his head so Izuku can adjust the pillow. His arm comes down and lingers carefully, tenderly, at the hem of Izuku's shirt, fingertips drifting only just under to brush his skin. Sucking in a breath, Izuku pretends he's not there, and continues fussing, despite having everything where he wants it. "If anything, I wanted them to know you're being targeted, and you're fucking relentless at throwing yourself in harms way, and fucking hell, you shouldn't have been alone." He sits up with just his ab strength, and it's attractive. When he swings his legs out to land on the floor, Izuku is drawn forward to stand between them.

Looking down at Katsuki, who's head is tilted up to watch him, eyes narrow and heavy, Izuku feels a headrush that makes his sight fuzzy and his legs feel like jello.

"That's true." Izuku plays like they're still having a serious conversation.

"Right." Katsuki breathes, tugging Izuku in and really, how can he not?

They kiss, and it's good, and Izuku finds his body is sinking, one knee coming up, then the other, because sitting in Katsuki's lap sounds like the best idea right now. Katsuki nips his lip. His arms come around Izuku's waist, and they settle together like a bronze statue, sitting up in bed, intimate and precious and eternal.

"Hm, Kacchan." Izuku murmurs, happy, into his mouth.

"Nerd." Katsuki snorts, but the way he goes back in for a deep one, licking, careful, savoring, well…whatever he says is less important than what he does.

Somehow Izuku's clothes have loosened. Not of his doing, his hands were forever stuck to Katsuki's hair, guiding his head back and forth, urging him down to rub their scent glands together, trembling with the feeling. He doesn't realize his belt is loose, or his zip is down, not until Katsuki pushes his hands around his pants to cup and squeeze at his ass cheeks, urging their hips closer together.

Izuku gives the tiniest gasp, and his hips move without permission, helped along with Katsuki's grip. This time he nipped and relished the way that Katsuki sucked in air through his nose.

Katsuki rumbles into Izuku's mouth, chest vibrating. Izuku can't help the tiny little chirrup he gives back, a little noise, not a loud chirp, but not a growl, its far too pleased. He didn't know he could make that sound.

"That's good, Kacchan." Izuku says lowly, full and licking his lips of everything Kacchan as they start up a lazy rhythm. It's a grinding, slow rub that sends signals all down Izuku's limbs and extremities.

"How do you do that?!" Katsuki grunts, fingers flexing hard enough Izuku gasps. "You're all red and mumbling out there, but here when it's actually, fuck, actually happening you're all…like…"

"I'm like what?" Izuku says, warm and throaty. He feels good. He feels so good, Katsuki's lap is comfortable and he feels sexy with his legs spread like this, and the way Kacchan's fingers dug into his cheeks (under his pants, over his underwear), is hot. He tries an enterprising new wave in his hip movements and swallows down a moan, choosing to bite his lip and blink his eyes open to lock on Katsuki's. Katsuki's, who's eyes were wide and fixed on him. It's a good feeling.

"Shit. Like that. Fucking hot, and naughty, and god, that's good, baby, keep doing it like that." Katsuki groans low, dirty, and it's right there in Izuku's ear. He shudders, hips stuttering, and Katsuki seals his mouth over his collarbone for a good long suckle.

"Kacchan," Izuku pants into blonde hair, hands clutching it. He leans back, and Katsuki disengages, lips wet and expression almost drugged. "I want…to touch you. Can we…can we?" He's not really asking for anything, but his hands slip regretfully from his hair and travel over shoulders, down a tense chest and start tugging at the belt under his thighs.

"Fuck." Katsuki whispers, it's almost to himself. Dazed anticipation makes him lean back on one hand, clutching tight to the ass he had captive with the other, as Izuku wiggles his way into Katsuki's pants and finally, oh fuck, fuck, finally, taking hold of his erection.

It's not huge, but it's not small. Red head, perfect grip size, in a nest of wiry blond hair that curls in a way the hair on his head doesn't. It's perfect. It's Kacchan's, and Izuku loves it immediately.

"I love it, Kacchan." Izuku tells him, licking his lips and drifting on aroused alpha pheromones. His alpha's pheromones. Suited just for him.

"Fuck!" Katsuki snarls, leaning forward to put his teeth in Izuku's shoulder. Not in the meat thankfully, but on the boney shoulder where the t-shirt sleeve did nothing to help the bright spot of pain. Jerking, Izuku is helpless when Katsuki starts pulling at his cock through his underwear, urging it out of its confines and pressing their members together in a hot, unfamiliar feeling.

"Oh, Kacchan." Izuku says, staring down and letting his fingertips trail over both their heads. His own cock isn't as long, or as girthy, but it's significantly more sensitive. The bare drag of his fingernail over the slit makes him shiver.

"Fuck, you little slut, sayin' all these things, askin' me to touch you…" Katsuki pants, wrestling Izuku as close as possible, and then taking them both in hand. Izuku lets his head fall back, and he wants to moan, like, loud, he knows it's in there, ready. But his mother was a room away, the last thing they needed was her bursting in.

"Make me come, Kacchan?" Izuku entreats, leaning forward to lick and whisper directly in a curled ear. "All over myself?" His insides tremble, not just because the pumping of his alpha's hand was perfect, but because he'd discovered a waiting well of confidence that made him feel so good, that makes Katsuki respond to him to good, it was all he wanted. All he wanted was to feel this safe with Katsuki, forever. He whines, ducking to hide his face, and their glands brush. "Come all over me."

"Guh, fu-, Deku," Katsuki lunges, kisses him, and comes in a great big burst, one that Izuku feels splash up under his t-shirt and land over his thighs. Oh, his clothes were going to be stained, but oh god its so good, it's warm and smells like Katsuki and he's coming too, dribbling out over an already wet hand.

He's trembling in Katsuki's lap, their come is mixed all together. Thankfully, without the clutch Katsuki's knot had done little more than threaten, so the sheer volume of come was limited. He's got his nose in blonde hair, lips brushing the ear he'd been whispering into, and he just knows he's slick in his pants.

"Uuhgh." Katsuki says with feeling into Izuku's neck.

Izuku chuckles, wrapping his arms tightly around Katsuki's head and smothering him in a hug that makes Katsuki struggle to free himself from.

"Kacchan!" He chirrups, rubbing his chin all around the other's forehead, and despite the mess they have between them, and their softening cocks just hanging there out in the open, Izuku's never felt closer to his alpha.

"God, dammit, Deku, let me clean this shit up. One of these days we're actually gonna have to fucking study, you know that?" Katsuki grumbles and snaps, but his eyes are half-lidded and the tension in his shoulders that had been there since the morning fuss with Shigaraki had melted out of it. Even Izuku barely gave a thought to the villain encounter he'd had that day; he was far more content to lay and let Katsuki wipe at him with his own shirt.

Wrestled nearly naked, Izuku is left to curl and purr in his half-nest as Katsuki does his best to clean their clothes, air out their pheromones, and get some water, all without Inko noticing.

Katsuki sits at his side and pets over his head roughly. He's staring off to the distance, not paying attention to the purring mass of omega next to his hip. With his forehead and nose pressed tightly to Katsuki's thigh, Izuku was drifting on clouds. The hand pet his head and crawls his way over his ear, around the corner of his jaw, then smoothed over the back of his neck.

He twitches.

"Shit." Katsuki freezes. "Is that okay?" He's drawing his hand away and that wouldn't do. Grunting, Izuku snatches it back, kisses the palm then forcefully presses it again to his nape, right where Shigaraki had him pinned.

The hold didn't really feel like the villain, it certainly felt and smelled like Kacchan, but it rang a silent bell.

"Do this sometimes so I can get over it? Fix it, alpha." Izuku asks, mumbling and still cocooned in his happy place. Katsuki's scent has been pumping out soothing pheromones all evening, Izuku didn't think he would be able to get anxious if he tried.

"Yeah, sure." Katsuki answers, and its his tight voice that he uses when he's withholding rage screams. Perhaps to rail against Shigaraki. Perhaps to fall to pieces about the way Izuku had let the alpha term slip unconsciously. Izuku appreciates his warm hand, regardless. Katsuki massages his nape, fingers pulsing, and it's lovely and nothing like Shigaraki. Izuku could get used to this, actually.

At the end of it all, Izuku smiles in satisfaction as Katsuki kisses his forehead and steals his "least offensive" flannel for the walk home. He feels…good.

Shockingly good.

Well, everything seemed perfect to Izuku right then.

Nine

Chapter Summary

Don't ask Katsuki about his and Deku's final exam.

Just don't.

Chapter Notes

some mild angst, short, but good

See the end of the chapter for more notes

Don't ask Katsuki about his and Deku's final exam.

Just don't.

Waking on a hospital bed, beaten to all hell and exhausted from healing, Katsuki spies Izuku on the second bed, laid up on his front because his spine was a millimeter from being severed.

By All Might.

Whatever hero worship he had for the hero warred with an immediate and utter disgust he had for the man's disregard for Deku's life and wellness. With a near-broken spine, Izuku had carried Katsuki out of the fucking ring. Katsuki, who had been proven too weak.

Again.

Again.

Again.

The bus ride back is more of an ambulance. It has none of the weird tension the ride to the exam grounds had been. Perhaps, it's because both of them are unconscious.

There'd been some harsh words. A punch. Some angry, cruel words. And then the fight.

And All Might…hadn't held back. Had barely held back it felt like, even though Katsuki knows the man could have squashed them both with his thumb if he'd taken them seriously. Instead, he'd gone on about being the villain, had blasted them to all hell, smacked Deku down with Katsuki's fucking body as the bludgeoning weapon, and they needed to pass.

They needed to pass!

The clinic is silent.

This time, Katsuki was the one to wake and find Izuku waiting for him, face down because his fucking spine was so close to breaking. His spine.

Sick, Katsuki felt sick.

"Kacchan." Izuku sighs, eventually. It would have been kinder if he sounded angry. If he was snarling in Katsuki's face, dragging him over hot coals, ripping him a new one for all the idiocy he's been up to today.

Instead, he just sounds tired.

"What the hell was all that, Kacchan." It's barely a question. Izuku is staring out at the setting sun, not even looking at Katsuki, and it's both a blessing and a curse.

What the fuck is wrong with him? Just a while ago, he'd held Izuku in his arms, in his lap, and kissed his way across his face. His cheeks, his lips, his nose. He'd kissed those eyelids, the ones that were turned away from him.

He wants to see those eyes, but he doesn't want to know the look in them. Blame? Katsuki had plenty of it, and it was all falling on himself. Disgust? Contempt? Disdain? Maybe this time they would be there, all those things he grew up thinking that Deku thought of him, because he deigned to hold out a hand. To offer help.

Heroes don't need help. They're the ones helping.

What can he even say?

I wanted to win. That's ugly. It's the same thing he'd said to Deku the first time, that very first training with the hero team and villain team and the fake bomb.

I didn't want to run away. Running away was cowardly. Begging to not face All Might, just cause he's All Might and they have no chance? Fuck that, they're gonna fight and win. Katsuki's gonna fight. He has to fight. He must win.

I couldn't take that look on your face. The one where Izuku had already given up. That was sending him scurrying to hide and run like a mouse, like the same victim he had been for so many years. The victim Katsuki had made him into. His omega, a victim? No. Absolutely not. How dare he even suggest it.

"Kacchan, I need you to say something." Izuku says, and then the scent of salt hits him. Deku's crying.

But there's no sobs, just the silent, exhausted tears he gets when his heart is broken. Fuck. Fuck.

"…Izuku." He says finally, staring up at the ceiling. Despite the raging storm of emotions in his chest, the poisonous ones that he would normally let fly into words, he also feels shockingly numb. Glazed over, like he's looking at himself through glass. "I don't know."

"That's not good enough." Izuku says, it's almost too loud. It's fed up. Good, be fed up.

"I know. That's the point." He answers, and tongues at his gums. He wonders if Recovery Girl could heal everything, because he can feel a healed wound in his mouth that was just about disappeared. He'd been spitting up blood, must have come from that. Thankfully he didn't loose a tooth.

"What?" Izuku sniffs, muffled, likely rubbing his face on the blankets.

"Not good enough." Katsuki says, and saying the words is hard. It's hard. "That was. That. I'm…"

He can feel the emotions, he can reach out and touch the concept of it, but fuck, it felt too big. A great big monster he's been fighting in his stomach all his life, and every time he thinks he has it destroyed, buried, dead, it revives and bursts into renewed strength. He doesn't have the energy to fight it right now. He just stares at it.

A faceless blob of a monster. Like that sludge villain. And it lives in his heart.

"I wasn't good enough?" Izuku asks, and it's annoying because he's wrong, and Katsuki hates how easily Izuku says it like it must be true. How he jumps to that conclusion, every time.

"No! Fuck, no that's not it. Me." Katsuki bites out, and the monster takes a step back from where its been hovering over his chest, a great weight holding him down. Tears, there's tears dotting in his eyes and the ceiling swims. "I wasn't good enough, I needed to win, I couldn't lose, I couldn't run away. That's what I am. I win. And I don't anymore."

Is he crying now? He can't tell. He's so tired.

"Kacchan…" He doesn't know what to say, it's obvious. Good. Let Katsuki have the final word, at least once.

An apology is living in his throat, and it's got spikes speared into his neck. He wants to apologize. He wants to say sorry. Yet again he's done some cruel thing to Izuku and made it about himself.

This time, maybe he wouldn't ve forgiven.

Izuku is quiet. He shuffles in his bed.

Katsuki swears to all the fucking gods he doesn't believe in, if Izuku ignores his own injuries and dares to leave that bed to come and fucking comfort him or something, he's gonna murder a bitch.

"I think you're good enough. I think you're more than. It probably doesn't help if you feel this way about yourself, but it's true, it's what I believe and I hope you know that." Izuku says, and it's quiet and careful. The clinic is too still around them, Katsuki has no choice but to hear these words. "Today was…hard. We were facing an adult we both admire and trust. I felt unprepared. I'm sure you…no, I'm trying not to assume what you think anymore. I didn't think we could do it. You said that you could. We couldn't meet in the middle until nearly too late. Maybe we'll do better next time."

Lying there, all his muscles sore, Katsuki wonders if his omega has an evil bone in his body. Despite the chilling analytical skills, the traumatic quirkless childhood (courtesy of himself and society at large), the lack of a father figure, and the utterly ridiculous martyr complex, Izuku was the purest fucking soul he'd ever met. So giving. Insecurities and all.

"No, I didn't think I could beat him. He's All Might. I don't know what I was thinking, but it wasn't the truth." Katsuki says, and Izuku hums his acknowledgement.

They're quiet together for a while. Perhaps Recovery Girl would come back for them, perhaps they were meant to sleep here the night. Whatever it was, neither had the energy to move.

"I didn't mean to hit you." Katsuki mumbles, because why not let it all out at this point. The painful clawing in his throat didn't easy, but it was expelled. "I swear. I'm sorry."

A breathless silence. "It's alright Kacchan, I forgive you."

"You shouldn't."

"Doesn't matter. That's my choice." Izuku laughs a bubbly noise, utterly incongruent with their subject matter. Katsuki's ignoring the shaking of his own bottom lip. "I see my therapist again, do you know? Once every two weeks. There's…there's a lot of new material, huh, Kacchan?" He sighs, and it's sad, but not a painful sad? Just a resigned sad. Katsuki can relate. Not the sad part, but the resigned.

"Mine told me I was slipping, and I stopped going." Katsuki admits and is surprised by how easy it was to do so. "Only about three weeks ago, though." The sun is nearly set, yet Katsuki doesn't feel that tired anymore.

"It's annoying when they're right, isn't it?"

"So fucking annoying."

Katsuki goes to sleep that night troubled. Not because he was upset, but because he wasn't. For the first time in recent memory, here he was going to sleep without feeling like he hadn't fought enough rolling about in his chest.

Chapter End Notes

I want everyone to know that abuse in relationships is never okay. If they emotionally, verbally, or physical do it once, they're showing you who they are, I have personal experience. I don't believe bakudeku is abusive, absolutely not. On that note, I'd like to remind everyone these characters are fictional, in a fictional universe that has superpowers and high school kids fighting villains and shit. Ya'll have been great, and I find AO3 is phenomenal for shit like that but the Tiktok fandom is a toxic place sometimes, oh my god.

Just enjoy the soft boys having some good fucking communication, it's bloody well time. Sometimes the hardest fights are the ones you have inside of yourself 3

Training camp neeeeext~~~

Ten

Chapter Summary

Katsuki only gets two nights to enjoy summer camp. They're good nights, but they fail to remain so when shit happens. Is that just his life?

Chapter Notes

I AM HERE! WITH ANGST!
I'll fix it all next chapter, don't worry, but here's the boy's most stressful day~~ xoxo

Katsuki only gets two nights to enjoy summer camp. They're good nights, but they fail to remain so when shit happens. Is that just his life? Shit happens, and then shit happens, and then even more shit happens?

Fuck's sake. He's too young to be this fucking cynical.

The quirk training is hard, his hands tingle from quirk usage, just riding the line of over-use. Aizawa knows what he's doing. So do the other cat heroes. The meals as a group are actually not that bad if he keeps Shitty Hair and Dunce Face away from the vegetables, and honestly, eating all together and talking into the night (way too late, he wants to fucking sleep dammit), actually feels like the class were...that they were all…ugh, gag him….friends.

And somehow through some mystery of omega biology Izuku has maneuvered in his sleep twice now across the tatami flooring to land in Katsuki's bed roll. The first time was embarrassing, it made Glasses and Dunce Face and Shitty Hair laugh and badger him. The second time was cute, because Katsuki wakes up first ahead of everyone and is treated with the privilege of feeling green hair tickling under his chin, a small, freckled nose snuffling against his neck, and an omega's pleasant, content scent wafting upwards. Katsuki rumbles a bit, unconsciously, and Izuku presses closer in his sleep.

Cute as fuck.

It was also fun to watch Izuku collapse into fanboyish flailing whenever he got ot talk to or about Ragdoll or Tiger – two of the very few omega pro heroes.

"Kacchan, Kacchan," Izuku huffs, yanking at his arm as they get ready for more training. Katsuki snaps at him, attempting to shake him off, rustling an ineffectual hand into his green hair. "There's no other hero like Tiger-san, do you know that? None! He's the only one! Omega, and a body builder?!" He fists his hands and stares off, eyes sparkling. "He's my fifth favorite hero."

"Fifth? Wow. That's really up there." Katsuki responds, deadpanned and dying inside. He doesn't stop from scenting him though, glaring at Icy Hot when he gets too close to his half-naked omega.

Izuku slaps at his face though, he's trying to tell him something serious, listen to him, Kacchan, and so he puts his arm around his neck, perhaps a bit too tight, it cuts off the avalanche of words. Oh dear. How terrible. Izuku can't describe to him his top fifty heroes in immaculate detail.

It's not like Katsuki knows it by heart or anything, and he still maintains that the Destruction Pro Hero: Evil Destroyer deserves a higher spot than forty-ninth.

Around them, their classmates roll their eyes and snort at them, Shitty Hair beams like a dumbass, grape-ball-boy invites death with a wrinkle of his nose at Izuku's enthusiastic scent as he changes his blockers.

As much as Katsuki wants to beat the shit out of people, spar, fight, he realizes that what Aizawa said is true. They hadn't been working their quirks very hard, not since the sports festival. Just their bodies. Katsuki had no time to screw around. To stay ahead of natural talent like Icyhot, privileged rich kids like Ponytail, and reckless fuckers like Deku, Katsuki had to work twice as hard, twice as long. Shit doesn't come easy, but you work on it enough, yeah, you stay at the top.

Katsuki deserves to stay at the top.

They were a little spoiled really, with the hot spring. It did wonders for his aching back and trap muscles. He vaguely thinks about the spare nitroglycerin that might be mixing with the water, but he doesn't have much left of it.

Izuku floats closer to him while in the bath, cheeks a hot pink, while Icyhot falls asleep and the rest of the idiots splash about. Thinking he might be able to grope said nerd a bit under the water, Katsuki ignores whatever the fuck is happening with the grape-ball-boy until Deku bursts out of the pool to catch a falling kid.

Stupid fucking Deku. Ruining Katsuki's plans by being a stupid fucking hero.

Whatever is up with the kid, it's none of their business. That never did stop Deku though, the little shit, poking his nose in everyone's business.

Katsuki's a hot-blooded teenager just like the rest of them. The majority of his brain power was devoted to getting stronger, to his grades, his health, his strength. Yeah, and he can get horny at the drop of a fucking hat, and every little snapshot he gets of Deku in his stupid T-shirts and shorts and ugly shoes (this? This is his omega? This fashion disaster?) gets him a little hot under the collar of his premium skull shirts.

That ass and that scent together is criminal.

If he can somehow seek out Izuku during this stupid test of bravery, maybe he could get a bit of nooky in the dark. (He hates his brain for latching onto his mother's stupid word. Just say sex. Say it). That would be rather delicious, pressing Izuku down into the grass and moss and kissing him with the stars over his head, the omega giggling and clutching him close like he's all he ever looks at, or needs. Yeah. That would be good. His horny brain took over for a little while, while hero-brain-Katsuki railed at the waste of valuable training time.

The vague threat of whatever Aizawa would do if they were discovered does linger in the back of his mind, but Katsuki was enjoying himself with the fantasy, Aizawa could get his wrinkly old hobo ass out of there. There was only room for one ass. And that ass was juicy.

He's matched with Icyhot though, and they're walking in reluctant silence through the dark forest on whatever test of courage this was, like they were gonna get scared by anything, Deku would get scared, not him…Oh.

A head.

Around then is when the shit happens. And continues to happen.

No, not shit. Absolute fucking disaster.

The crazy bastard in the straight jacket, with the teeth that shoot out. Moonfish. The way he speaks, the way he drools at the idea of eating 'meat', fuck, this guy deserves to fucking die.

Trading a glance with Todoroki, for once on the same page, they get into it with the fucker. He's fast, though. He's shockingly fast. For an asshole, Todoroki is also exceedingly fast with his ice. He's not ever going to say thank you.

Out of the darkness comes Shouji running, with Izuku in his arms. Freezing solid for an instant, Katsuki almost doesn't dodge the next spike of teeth.

"Deku!" He shouts, too much alpha, too much, "What the fu-"

"Get out of the way!" Izuku screams, eyes wild, and that's when Katsuki's focus expands, and he notices the great big black monstrous Dark Shadow closing in behind the runners. How the hell did he miss that.

Shouji somehow wrangles all of them together, arms webbing out to snatch Katsuki by his bicep and Todoroki by the back of his shirt. They're dragged to the side, and Dark Shadow, with what looks like the bird head writhing in its centre, utterly flattens Moonfish with a brutality Katsuki hadn't expected.

Not that the guy doesn't deserve it. Shit. Tokoyami was a badass.

"Dark Shadow needs to be tamed with light, use your fire." Izuku turns on Todoroki, demanding. There's no getting out of this one. "Kacchan!"

"Already on it!" Katsuki crows, a savage grin on his face, flying upwards and blasting directly in that big ugly shadowy mug. Dark Shadow flinches back, and then there's a wall of flame from Icyhot, who's control is still a little shaky. Tokoyami shrinks down, and Moonfish is left unconscious, slammed into the ground and leaving a crater of cracks. All his bones must be broken. They leave him there. Maybe it would be better if he dies.

Speaking of bones, where's…

Ah, there's an omega already in his arms.

"Kacchan!" Izuku blubbers, now that the danger seemed to have lulled, he was trembling, and his eyes were big. "They're after you! They're looking for you!"

"I heard, fuck that, what the hell happened to your arm!" He's on the verge of being enraged, again, Izuku had ruined his body again. Beside them, Shouji and Todoroki tended to Tokoyami, all of them awkwardly trying not to seem like they were eavesdropping on a private conversation. To himself, Todoroki rolls his eyes, wondering if the other two even really noticed they were present at all.

"Muscular."

"What?" Katsuki pauses. That's familiar.

"Remember Water Hose? The bonded pair? Kota's parents?" Izuku asks rapid fire, rhetorical, "He killed them. He nearly just killed…Kota." Fear flickers in his face. Katsuki knows what that expressions for.

"And you."

He bites his lip. "And me. I had to go…plus ultra. It's useless right now." He waves his healthy hand at his arm, hitching it close. It must be in absolute agony, just hanging there.

"Alright." Katsuki grunts, tamping down the automatic anger, which felt a little misplaced right now. "Least it wasn't more than just an arm." He rips at the remnants of Izuku's shirt, ignoring his squeak, and loops it around into a sling. He carefully attempts to pin the broken arm to his body, grimacing when Izuku can't help gritting his teeth. Fuck. It wasn't just broken, the flesh was all tenderized, flattened, torn. Bleeding from his nails.

"I tried." Izuku answers, watery, hitching a smile on his face and fuck, Katsuki lov—es, erg, uh…likes him. A lot. Fuck. Not the time.

"We've got to get Kacchan back to camp," Izuku tells them authoritatively. Said Kacchan blinks, dumbly, trying to remember why, and why his omega could ignore such a painful injury with such ease. "There are lots of villains in the forest, how do we get there?"

Arms answers, as does Icyhot. None of them glance over at Katsuki, who was in fact, the one they were speaking about.

Excuse the fuck out of him.

He barely even gets a word in before he's being nudged into the middle, Izuku following behind, Arms out front. Whatever. This wasn't the time to put up a fuss, he'd just smack them all around later, when there weren't serial killers in the woods around them.

They run into a crazy ass bitch with a knife, who takes a few swipes at Izuku and Cheeks before she flees into the forest. There's a look on her face that Katsuki immediately hates, alpha bristling.

More running.

What's funny, is at the same time Izuku reaches out with his good hand, grabbing at his arm for comfort or reassurance, Katsuki feels a separate, gloved hand clamp onto his shoulder.

Then there's a terrible feeling of nothing. He tries to speak, he can't. He can't really move. He can't see. There's a sense of a bubble, like he's contained, but it's not anywhere he recognizes. What the fuck. What the fuck.

What the fuck, let him out. Let him out. Let him out, out, out, GET THE FUCK OUT, GET OUT, WHAT THE FUCK—

He's out, breathing air again, and there's a painful hand on the back of his neck. The hand heats, threatening, and it's pinning him. Stunned and body sluggish from whatever fucking containment he's just been in, Katsuki, shamefully, can't move. He can only watch. Watch, as his classmates fall over themselves trying to reach him.

And Deku…

The last he sees of Deku, of his sweet Izuku who had woken up shy, embarrassed, and giggly under his chin that very morning, his destroyed arm out of its sling, a hurt-animal desperation on his face, his good arm reaching out for him, hand outstretched. Katsuki wants to take it, he needs to, but his arms don't move. The fucker who held him laughs, dark, mocking, and he's being pulled back, away from Deku.

Izuku's voice crying out, stripped of everything except pain; "Kacchan!" It felt like a physical knife, cutting into his guts, searching for his heart.

"Deku…" He gasps against the squeeze in his neck, as his body is swallowed. "…Don't come." The last thing he needs or wants is an injured Izuku floundering his way into the villain's hands. Katsuki could handle it. He could. Not Deku. Not his Deku, who runs screaming his name. Hand outstretched.

They're going to remember this forever.

Whatever the portal is made of closes over Katsuki's face. He can't breath for a long second.

He's getting real sick of drowning in villain.

.

.

Falling into the space of nothing, where Katsuki had been, Izuku skids forward onto his face, his injured arm useless and his one healthy one still reaching out. He can't really breathe. Staring, numbly, he wonders why he can't breathe.

Around him, people are moving, gasping, grabbing onto one another. There's someone running from afar, long strides, an adult.

Todoroki is the closest nearby, Shouji had Tokoyami, who had also been stolen. Todoroki's face was pale, as much as Izuku could see from his prone position, pale, and gaping at him.

There's a ringing in his head. It drowns out everything. Izuku loses himself, around there, loses that important knowledge of who you are, where you are, what you're doing, even your very name. He bows on his knees, putting his head in the dirt, because holding it up is too heavy. He's staring, but he can't see. His ears work, but they're not capturing anything.

The frightening thing is that Izuku hasn't made a sound yet. He's face down in the dirt, right where the villains had stolen Bakugou.

"Deku-kun!" Uraraka cries out, starting to run forward. Holding out his hand, Todoroki's expression stops her. He's fearful.

"Midoriya." He says, even as Aizawa appears in the clearing. The pro hero looks as close to frantic as they've ever seen, as his eyes dart from student to student, locking onto the collapsed omega and clearly making the connection. No alpha nearby. No Bakugou.

"Midoriya," Todoroki says again, "You need to breathe."

Izuku barely moves, staring at him, unhearing. Reaching out, Todoroki takes his shoulder, tight.

"Breathe. You need to breathe. Bakugou can't come back to a dead omega." He says, and the words are harsh enough several of them flinch. Uraraka gasps, putting her hands over his mouth. "Breathe." He orders, desperate.

Izuku breathes in, and then lets it out.

It's not a scream.

Humans don't make animal sounds. They don't have the voice box for it. Alphas and omegas notably do have a third vocal cord, one that generally handles the growling and rumbling and purring noises one hears. That's the limit of biology, that's the norm of what people have come to expect in this day and age, long divorced from the era of instinct and barbarianism, when humans ran in packs and fought each other over possession of omegas and behaved like sophisticated animals. Each person in the clearing knows what sounds are humanly possible. They didn't know one person could…that Izuku was capable of…

The sound Izuku makes, is a keening wail, starting thin and building, tearing from his chest like the claws of a monster. It's got so much distressed omega in it, it feels almost disgusting, raking bloody trails over their skulls, turning Izuku into this broken nothing. He sounds barely human to them.

Everyone flinches away, crumbling. Kirishima bites into his fist to keep himself from crying out, the alphas in the clearing tremble, some fall to their knees.

"Midoriya." Aizawa grits out, approaching. Todoroki is slowly turning white-eyed, horrified, staring with an open mouth and shaking hands at the omega, who grinds his forehead into the dirt.

"Midoriya!" Aizawa shouts, and it has alpha in it, they've never heard that before. The class hadn't even known their teacher was an alpha, he seemed particularly genderless. His order doesn't even stutter Izuku's keen. Izuku, who wrapped his arm around himself, squeezing at his broken one viciously, injuring himself more, voice stripped raw, raising it, turning into a scream. He's heedless of them all. He's not there.

Aizawa knocks Izuku unconscious, and a blissful, shaken silence fills the clearing in his stead.

.

.

Even though he flails, blasts off the best he can, Katsuki only gets a few good hits and a kick against them before he's clapped with heavy quirk suppressors, chains, and a muzzle. Another fucking muzzle. Sat into a chair and laughed at, ignored, like he's some fucking doll.

There's a weird emptiness in his chest, an awful disconnect. He wants to scream. As much as he jerks at the chains, they don't budge. They laugh at him, they jeer, if they notice. Eventually, exhaustion hits his limbs and he gasps in air underneath metal.

Villains. They barely talk to him for a while, working over how their plan succeeded, and failed all at the same time. It's insulting. They lost a few partners, he hears. Muscular. Moonfish (that asshole with the teeth, screaming about meat?), some kid. Whatever. They don't seem to broken up about it either…the warm hearts of villains. There's an eerie old TV that is just, on, in the background. Fuzzy white noise is all he can see, but none of them ever turn it off.

He snarls at Toga, the bitch, who with her poisoned alpha scent just keeps talking about how good Deku looked covered in blood. (Don't talk about him, don't say his name, don't you dare, how could you, keep his beautiful name out of your filthy mouth--). Her tongue lolls out grotesquely, and while she acts cute, her constant playing with knives displays her sickness. He feels an alien desire to rip out her throat with his teeth. (Does that make him villainous? Join us, Hands offered. We've got time, he says to Katsuki's refusal, you'll change your mind). When the scarred fucker holds up a shitty sandwich and a water bottle for him to eat, he damn near tries to bite his fingers off. He doesn't get punched for it, but he can tell the fucker kind of wants to.

Basically, being kidnapped by villains is many, many hours of sitting there ignored. They'd go around having their conversations like he wasn't even there, but they never say anything useful he could give to the heroes if…when they come get him. That hand fucker is weird too, scratching all the time, playing his games, talking like a fucking child. The portal bastard cleans his glasses all the time, making drinks every now and then, standing behind the bar like its his. Maybe it is, but Katsuki doesn't care about the business ventures of villains.

That Dabi though, is fucked up. Twice is a two-faced insane fucker, Toga is a psycho bitch, portal bastard could be replaced with a cardboard cutout for all that he does standing there, hands is whiny and weak, but Dabi? He walks like he's killed people and relished in it. It's worse than Toga, who crows and salivates and shivers with delight – that's just mentally unwell. Dabi seems dead inside.

It's a weird connection to make, but Katsuki sees it. Sees it in that overdone dramatic coat, the stapled face just barely holding his skin together (like what the fuck doesn't that hurt), and the dead look in his ugly, frost blue eyes.

Katsuki shies away from the thought of Izuku, feeling like it puts the other at risk just to imagine him while these fuckers stared at him, asking him questions, or spoke to one another nearby. He couldn't think of Izuku, he couldn't. Not right now. Not when he was under threat. He wouldn't put Izuku in danger, he wouldn't, he wouldn't.

He notices a picture of Izuku, pinned to the wall behind the bar. It's a snapshot of the Sprots Festival, he's got that stupid look on his face that says he's nervous and on the spot, having his photo taken.

Katsuki feels sick.

He's left in the dark, when they leave for sleep. He'd never realized before, but villains did have to sleep, and eat, just like any other person. Any other person doesn't go around killing people and kidnapping teenagers though. Even people who eat pizza and sandwiches at the bar, watching the Hero News like a fucked up family.

Katsuki couldn't quite sleep, tied up in the chair like this. It's the early morning, but he can't tell, there's no windows. The weight of the cuffs was heavy, it made his shoulders ache, dragging him down. He was upright and tied up and in the goddamn villain's lair. Villains, who believed him of their kind. Who wanted to turn him? Fucking insulting.

Fucking horrific.

He doesn't sleep.

But he does close his eyes against the dark and think of the way Izuku's hair brushed his chin when he woke up that morning.

Eleven

Chapter Summary

When things decide to go tits up (worse than they already were, somehow), it does so fast. Why does this kind of shit just keep happening to them?

Chapter Notes

FLUFF AND SMUT TO SOOTHE THE SOUL
Longest chapter yet!

See the end of the chapter for more notes

When things decide to go tits up (worse than they already were, somehow), it does so fast. Why does this kind of shit just keep happening to them? (Deku was onto something there, maybe Katsuki needed to reevaluate).

After a truly awful joke about pizza, All Might breaks down the door, finding Katsuki on defense, hands outstretched, ready to blast. He says something gentle, proud, and it threatens Katsuki's composure.

"Whatever." He mutters. "You're late."

Whoever 'Sensei' was, he was terrifying. Even Katsuki could admit that. The man walks out of the collapsed building in a suit, untouched, and All Might's face flickers with fear.

What could Katsuki do against someone that made All Might fearful?

They've nearly got him again, Dabi, Toga, Twice, Magne, they surround him. All Might can fight, but he can only defend right now, Katsuki's in the way. He can't escape with the villains curled around like this, everywhere he looks, blocking off the heroes. He's worse than useless right now. He's in All Might's way, but he can't get out by himself. (That burns, that burns hot).

Suddenly, there's an iceburg. Green lightning, The blast off of engines, and Kirishima's stupid voice. Izuku is concentrating, he can't glance back, but Katsuki calls them all idiots anyway.

He's given a grin from the red-haired fool, and he fights to swing his other hand forward to snatch onto Izuku's sweater.

Tears, tears are falling from determined eyes. Izuku, still soft, still watery, even in the middle of such a daring, ridiculous, successful rescue.

When they've all landed and fled. When their stupid group of suicidal idiots have escaped the worst villain any of them had ever seen, are hidden in a crowd of people, with the great big screen on the building showcasing every last move of All Might, Katsuki realizes he has Izuku in his arms.

He hadn't noticed, but he does now. Hands clench and pull him tight. Izuku's got a hold of him too, fingers digging into his arms. Is he crazy, or does his right hand (the injured one, the one that he'd put up in a sling as gently as he could) feel less strong? Like his grip hadn't yet returned. That doesn't stop him from digging his blunt nails into his skin.

Katsuki absorbs into his own body how Izuku shudders and stares through tears as All Might gives up the last of his strength for them. For Katsuki, who was dumb enough to get captured. Jeanist had been there, had nearly been killed. Gran Torino, Mount Lady. So many heroes, and yet this villain was playing around with All Might.

With All Might, who reveals his emaciated form to the world, exposed, vulnerable. He looks weak, he looks helpless, and yet he keeps fighting. Each of his hits blow back the villain, only to be hit in return. Yet he never fell, he never let himself fall. Made of iron and grit and determination. Just like Izuku.

Izuku, the crumbling, soft, weeping omega who clutched at his hands and his arms, but who also had the strongest spine of anyone Katsuki had ever known.

So many things had happened in the last hour, in the last few days. Katsuki's mind isn't keeping up. All he wants to do, is keep Izuku pressed to himself.

His omega. Katsuki presses his lips behind Izuku's ear, sniffing at him, rubbing their glands together, watching alongside him as All Might prevails, and points into the camera, exhausted and bloodied and injured but still so All Might. His voice, low, and done. Used up. Passing the baton.

"You're next."

And Katsuki feels weak.

The others look at them sideways, alarmed and nervous and relieved by turns. Everything's turned to shit, and here they are witnessing Katsuki turn into a fucking softie with Izuku (All Might's successor) in his arms, watching Izuku break down over and over (All Might's successor), scarred hands clutching onto the shirt he's been wearing for three days (All Might's successor). He's still injured.

More bandages. An arm brutalized into tender meat, forever injured. Forever scarred.

And not a scratch on Katsuki.

Numb enough from the night from hell, Katsuki has to convince his hands to open and let Izuku go. He's short and to the point with the officers who take him in, and when his parents arrive, let in nearly eight hours later to pick him up, emotional and grabby, they take one look at his face and don't ask questions. They just take him home. There's no sign of Izuku, who likely was picked up by Auntie and passed out already.

Katsuki is tired. He's hurt, aching. He wants to sleep, but he spends a solid three hours staring at the ceiling, in the middle of the fucking day, going over every single way he'd fucked up in the last seventy-two hours.

It didn't hit him until after. Until he was in his bed at home, parents down the hall. That he could have died. No amount of fighting could have stopped it, if they wanted to kill him, he would have died.

He would have died.

.

.

Izuku and Inko show up at his door the next morning.

Mitsuki takes one look at Izuku's face and lets him in, without a word. She pets over his head as he removes his shoes and gives him a plate of food to take to Katsuki, who had retreated to his room and rarely come out. Sitting together, Inko does her best to smother Mitsuki and Masaru in love and affection, and Izuku takes his leave to find his alpha.

Find him and bury himself under his skin so he can't leave or be taken away every again.

"Kacchan?" He asks hesitantly, knocking a knuckle at the door. There's no answer, and Izuku firmly takes hold of the burst of fear that causes (he's gone, he was taken again, he's gone), because he can smell him inside.

He enters without permission, finding Katsuki dressed, yet laying on his back on his bed. He doesn't glance over.

Kacchan.

Kacchan, who had been so strong all day yesterday, who had fled the villains who held him, who had cuddled Izuku to his chest and comforted him.

Kacchan, Izuku's alpha, the only one for him.

Placing the plate down on the desk, Izuku contemplates how to approach. There wasn't any fuck-off or dark scents coming from Katsuki, but neither were there beckoning ones.

"Kacchan." He whispers again, not really to ask anything, more just to say it. To remind himself. But his voice is shaking, and he's on the verge of another breakdown (what was this, the fifth one this week?) He doesn't want to be weak though, not when Kacchan's been so strong. Emotions are not weakness, his therapist says in his head, they're a part of how we live, just like breathing. He swallows, and scratches his patch off, hoping that maybe his scent could speak somewhat for him.

He's given a sign. Katsuki's chin dips, and he hitches a shoulder. It's an open movement, not a closing one. If Katsuki didn't want him there, he'd have rolled, turned his back, or his face.

Not that Izuku would have listened, but it was important to be respectful of people's space.

Izuku crawls up into Katsuki's bed, not hesitating for an instant, climbing atop Katsuki entirely, legs on either side, arms over shoulders, and settles his weight on his chest. Burying his face into Katsuki's neck, the hollow of his throat, Izuku shudders in the very real physical relief he felt merely from touching him. He kisses, gently.

Katsuki doesn't move for a long time, even as Izuku cries silently into his collarbone. Even as Izuku wipes his face, his chin, his glands on anything he could reach, gentle, careful, lips always returning to touch skin, light, worshipful.

Then the chest rises, as Katsuki takes a deep breath. Izuku goes with it and raises his head to look into his face. He probably looks a mess himself, red and snotty and disgusting, but Katsuki is looking down at him with an expression Izuku didn't know how to identify. Thoughtful, maybe. Soft. L-Loving.

"I'm not going to say thank you." Katsuki rasps, and Izuku can tell he's barely spoken.

"Okay." Izuku huffs, sniffing, he can't help smiling, because that's Kacchan's voice. His own is still a little tender from his breakdown after…after the kidnapping. "I'm so glad, Kacchan. I'm so glad."

Katsuki is quiet, but he lifts his hand and caresses Izuku's face. The thumb brushes under his eye, gathering tears. He's urged forward and he goes, letting Katsuki kiss his forehead. His eyes fall closed, and he relishes in the touch.

Then Katsuki's arms are crawling around him, clutching him down tight, their cheekbones brush, their glands only just touch. He slumps, and they lay together.

Izuku's crying again, but this time it doesn't feel like he's expelling the hurt. Now, its just relief. And it matches the feeling of wetness drifting down against his own neck, where Katsuki had buried his nose, scenting him for comfort.

Izuku pets at Katsuki's shoulder, and his hair.

Lifting a leg, Katsuki rolls them slightly, so Izuku is resting on the bed and Katsuki can turn to his side and wrap himself around Izuku.

God, he's so lucky, to feel this. To have this. He brushes through Katsuki's hair, relaxing with every new inhale of Katsuki's alpha scent, letting it seep into his very bones.

Katsuki's barely crying, but the fact that he was seemed important to Izuku. He kisses what he can reach, he doesn't speak.

"They wanted to recruit me." Katsuki says lowly, quiet, like he doesn't want to hear his own words. "They asked me to join them."

Izuku kisses his chin, then his bottom lip, gently, not pushing. Red eyes closed, Katsuki's face was furrowed, tense, eve as his hands drifted up and down Izuku's back, just…touching.

"They made me watch the interview, with UA. About how my tendencies are villainous." Katsuki sneers, the anger a front for whatever hurt he was working on inside himself. Privileged to be a witness, Izuku drags his lips back and forth over his furrowed forehead, drifting down over his eyes to taste the salt.

"Fuckers." Katsuki growls, clearing his throat and rearing his head back to snatch Izuku's mouth in his, kissing him ferociously, like he's trying to prove himself.

He does, he really does, because Izuku dissolves into just-kiss-kiss-him-again-more-kisses for a few long minutes. Long enough that the tension seems sapped from them, that the very touch of Katsuki's palm on the skin of his back, under his shirt, is soothing and spellbinding and no longer desperately grabbing.

"I'm so proud of you." Izuku says. "You know that, right? They would never succeed. Never, you'd destroy them all first. I was so scared. I…" He doesn't know how to capture it; no words seem like enough. "...Kacchan, you're the only one for me."

Katsuki contemplates this, before sinking down into Izuku, letting him wrap him up in his arms, succumbing to the comfort of being cuddled and coddled by his omega. It feels like agreement. It feels like reciprocation, especially when Katsuki turns his head to press his ear against Izuku's chest. Flushed with success and warmth, Izuku does his best to rise to the occasion, certain Katsuki wouldn't let him do this very often, if at all, stroking blonde hair, kissing his crown.

"What happened…after?" Is rumbled into his collarbone.

"When you were…taken?" Saying it out loud felt like a shard of glass fell from his mouth. But, like his therapist says all the time, swallowing that glass only ended up hurting himself. "Todoroki-kun had to order me to breathe. And then, I…I started screaming. Aizawa had to knock me out to get me to stop."

A long period of silence, and Izuku looks back on that horrid, horrid moment in time.

"I woke up in the hospital." He gasps, tearing this root free from his soul. He's tearing up again. He's sick of crying, but its so good to have Katsuki in his arms, under his palms. "And you weren't there."

For the first time. Izuku hadn't realized how much he relied on his alpha's presence when he swims back to consciousness, in the clean sterile white rooms of a hospital or clinic. No Katsuki at the side of his bed, no alpha to glower and glare and snap at him for being injured and yet be so gentle with his hands, his touch.

Katsuki pets him. Lips press to the hollow of his throat. Katsuki's eyes close, he can tell by the brush of eyelashes.

"Sorry, babe."

"Do-on't apolo-logize!" Izuku tries to say firmly amid sobs. "You were k-kid-napped, Kacchan!" He buries his face in blonde hair and squeezes tightly, arms and legs wrapped with Katsuki's.

"I should have…" Katsuki grunts, frustrated, but Izuku squeezes again, hard enough the air is pushed from his lungs.

"No shoulds!" He sniffs, scratching his nails against his alpha's scalp. He feels the way he's lulled with the feeling, with the grooming, and rests his nose in his hair. "Everything already happened, shoulds are useless and dumb. Are you dumb?"

"No—" Katsuki says through gritted teeth, the grip of his hands has tightened but Izuku's not having it.

"No, you're not dumb. What will you do instead?" Izuku draws back just enough so he can glower down at stubborn red eyes. "No 'should haves' just what will you do in the future. You know where I got that? Therapy."

He must look ridiculous, grappled around Katsuki and yet almost yelling at him. Is he going to get headbutted? What he does get is an exasperated snort, a roll of eyes, and a fist grabbing his hair and awkwardly dragging him down for another, beautiful kiss.

After they release, Izuku lays back with a content sigh, alpha laying his weight against him and cuddling into him. He scratches and grooms at his skull, from nape of his neck (amid some tensing and swearing) up to his forehead and then petting over his closed eyelids. He's comfortable, warm with Katuski's body heat, and drenched in alpha scent. Personally, he doesn't think there's enough blankets, but he can deal with it for now.

"You should thank your therapist. She's a saint for dealing with you." Katsuki grunts into his neck. It makes Izuku snort.

"Pot, kettle."

.

.

Five days later (was it really only that long), Aizawa and All Might show up to con the Bakugou's into giving them custody of Katsuki again.

Or that's what it feels like.

There's a lot of talk about how UA has failed, and how they're gonna do better. Dorm buildings are being built. They're asking to move him into them, UA will now be a boarding school. Katsuki doesn't care. He doesn't. There's no fucking reason for him to worry, he got out, they won't get him again. Even when he wakes up at night in a cold sweat, that ugly fucker's hand on his neck, and visions of Deku falling into the bar hurt and helpless sear into his brain. He's fine. He's fucking fine.

He calls Deku over, asking him to sleepover without asking him to sleepover.

His parents, by some miracle, are going out to a work function that night and won't be back till late. Mitsuki gives Katsuki an arch glance on her way by, winking at Izuku so he blushes and flusters. Embarrassingly, Masaru has already pressed a string of condoms into Katsuki's hand, and while he wants to scream about it, that would draw attention to the fact he had them, so he just stuffs it all into his pocket instead. They've barely even gone passed frottage yet, what the fuck were they on about?!

Well….

"Fuck off!" He snaps, and slams the door shut behind them, locking it before they could with their key. Mitsuki cackles on the other side. Always laughing at him, that old hag.

"Kacchan?" Izuku innocently asks, perhaps utterly ignorant of the thoughts that were flying through Katsuki's head. It doesn't seem possible to Katsuki, but he was the one with condoms in his pocket, not Izuku.

"Have you eaten?" He grunts, because it's almost around dinner time.

"I could eat." Izuku nods, blushing shyly. "Thanks for taking care of me." His scent swells just the tiniest bit, warming, like the little circle of heat from a candle flame.

Pleased, omega is pleased. Alpha provides.

Katsuki nearly trips, catching himself on the fridge handle and rumbling as he stared into the fridge contents. Idiot didn't know what he was doing. But he was still doing it.

They eat over small talk, which Katsuki never thought he'd be able to do with Izuku without snapping his head off, but as the nerd goes into a small rant about the cost of licensing hero merch, Katsuki lets it relax his tense shoulders.

The package of condoms in his pocket burn a hole through to his leg.

They wash dishes. Katsuki makes sure to clean his hands, thoroughly. It occurs to him, that he has a deep, deep need. Izuku's presence resolves so much of it, but not all. He had plans, ideas. Wants. Desires.

Izuku continues to babble, happy and fed, and Katsuki rumbles a deep noise, interrupting him in mid-sentence. He almost doesn't realize it's so loud when Izuku's chatter is stopped in its tracks and he stares at him, pink cheeked, eyes dilating.

Oh. Oh.

His scent turns sticky somehow, and Katsuki wants to drown in it.

"Upstairs." Katsuki grunts at him, taking a deep breath in through his nose. Nodding almost absently, Izuku leaves his drying cloth on the counter and wanders away up the stairs. Katsuki is only steps behind him, eyes taking in hips and back and ass and strong thighs on their way up.

"Kacchan, um," Izuku starts as they enter Katsuki's room and he closes the door. His childhood bedroom has felt so weird these past few days, like the room should have changed to reflect what had changed in Katsuki after being held hostage. Having Izuku stand in the middle, nervous and jittery but utterly into it changed the atmosphere though, and Katsuki imagined briefly, a large nest of blankets and clothing piled on the bed and a naked omega lying in the middle.

Woa, back up.

"Nerd, it's ok--" Hands up, Katsuki's about to say it's okay, that they can take it slow, that they didn't need to…to go all the way, to have sex at all even, but Izuku interrupts him.

"I want you to f-fuck me!" He nearly shouts, and Katsuki, mouth dropping open, has a moment of appreciation that his parents did decide to leave.

"Oh my god." Izuku wails in sudden embarrassment, hands slapping his mouth shut and turning to collapse and dig his face into Katsuki's bedding. He squirms, hiding his burning face, dressed in that stupid 'T-shirt' t-shirt and a pair of ugly khakis. His ass looks fantastic at this angle.

This doesn't help Katsuki's sudden lack of self-control.

"Yeah." Katsuki coughs, licking his lips. He takes the stuffed condoms out of his pocket and rips one off with a perforated zip. The noise captures Izuku's attention, and he spies a green eye pop up to watch. He tosses it with killer accuracy at the omega, it whirls and slaps him in the forehead before falling onto the bedspread before his nose.

"Oh..." Izuku mumbles, and Katsuki flushes. He's sounds almost impressed. "Oh, Kacchan." Then hot green eyes drag up Katsuki's entire body so boldly he can almost feel their fucking touch.

Good, they're on the same page.

Izuku does something fucking insane, then. He starts crooning, low in his throat and hearty. The sound is sensual, eager, calling, and it zings through all of Katsuki's nerve endings. It's some kind of weird instinctual cry, that would draw alphas to him to fight for the right to fuck him, and well, Katsuki's the only alpha here. (Not that he wouldn't absolutely destroy anyone else who attempted, but that's neither here nor there. Mating fights were both illegal and outdated).

"Yeah, baby," Katsuki whispers, coming in close to kiss him; they both turn molten. He crawls into his own bed and into Izuku's arms. Hands investigate beneath clothes, lips gather saliva and turn red. Katsuki rumbles half a moan against Izuku when the other puts his hands into blonde hair, only just gripping to make him feel it.

Then Katsuki's already loosening clothes, unzipping Izuku's pants and allowing the other to kick his way free, laying naked below the waist and open for Katsuki. It should feel like they're moving too fast, neither of them are even naked yet, but it doesn't. Izuku looks up with trusting doe eyes at Katsuki. His arms stretch out. He's crooning.

Katsuki was breathing heavier now than he does running in a full sprint. He palms one ass cheek, and Izuku curls into him, letting him have more. Almost too distracted to kiss, Katsuki tongues his way across Izuku's teeth, and his hand investigates where Izuku was hottest.

He's so wet.

Katsuki slips his middle finger in almost by accident, not realizing how warm and open Izuku was until his wrist strained and he was knuckle deep. He'd intended to just touch, massage maybe, tease him, but fuck he was already inside. Inside. Holy fuck a part of him is inside. Izuku gasps, surging against his mouth, and Katsuki, wide eyed, doesn't stall and puts his ring finger in too.

Izuku takes them, beautifully.

"Kacchan." He licks at Katsuki's slack mouth, hands dragging down his chest and abdomen, to hook onto his belt. The yanking feeling goes straight to Katsuki's cock. Izuku's right knee tracks up and over Katsuki's hip, giving him more room to finger him and fuck, that's good, it rubs Katsuki's thickened cock against Izuku's. He bucks, trying to hump, trying to finger fuck, trying to kiss all at the same time.

Their eyes open simultaneously, and they stare at each other from two inches away. Katsuki can see every eyelash. He can feel each rush of air that gasps from Izuku's mouth. It's almost too much, far too exposing, the way he was staring, but it had so much worship in it that Katsuki would never ever forget it.

"It's so different…" Izuku breathes, eyes wide and starry and absolutely sucking Katsuki's soul in, "It's so different with someone else's fingers."

Katsuki's hips pump forward and he breaks on a bit of a moan. Three fingers now, too soon likely with the way Izuku squeaks, but fuck.

"You finger yourself, Deku?" Katsuki asks him, panting. He feels right on the edge of orgasm, but everything about Izuku was far more important right now. "You, you stuff your cunt full and come on your own fingers? Like a slut?"

"I'm not a slut," Izuku whines, shaking and working his hips against Katsuki's hand. Trying vainly to catch on to Izuku's rhythm, Katsuki ignores the ache in his forearm. He'd rather his arm fall right the fuck off than do something stupid like stop. He could do this for hours, until his fingers pruned. Pressing his head forward, Izuku nips Katsuki's lip, with a large swipe of his tongue to mend the hurt. He croons again, urgent this time, and its all entirely omega. "But, if you want me to be, I can be yours?"

"Fuck." Katsuki groans, rolling them a bit, petting at Izuku's everything. His fingers regretfully slide out, but Katsuki needs to crawl into his skin completely right now. "Where the fuck did you learn to talk like that?" And where can Katsuki get lessons?

"Hmmm?" Izuku mumbles, barely even listening it seems. Katsuki kisses him into submission, and he's balanced halfway over his omega on his elbow.

This was already perfect, and they've barely started.

"I want…" Izuku starts muttering, becoming more and frustrated. "I want, Kacchan." He doesn't seem to know what he's asking for, and his hands are pulling at his shirt. With one hand sopping wet, Katsuki clutches back at him with his other, wondering how he could go about getting them both naked properly without leaving slick stains on his clothes.

"Gimme a second, dumbass," Katsuki whispers, attempting to wiggle free of the omega's clingy limbs.

"No, now." Izuku growls, he growls, the little omega just up and growls at him. In the moment of Katsuki's sheer struck dumb speechlessness, Izuku takes his chance and without even a hint of his quirk, bodily tears Katsuki's shirt from his chest in a loud ripping noise. Suddenly exposed and with that little mouth sealed around a nipple, a gaping Katsuki tries not to shudder into nothing, hopelessly turned on.

"You…" Katsuki blinks, even while Izuku's strong ass hands head for his favorite pair of slacks. "…you…you whore." He growls back, deep and definite, seizing Izuku's hips with both hands and throwing him underneath his body. He shows his teeth, grabbing a fistful of green hair with his slick hand, pinning him hard. Izuku groans at the forceful move, arching, hands held up high by his ears to submit, showing his throat.

Trying to take control of the situation from Katsuki was he? Well, Katsuki would show his omega.

"Hold the fuck still." He snarls, getting up completely from the bed and stripping his own pants off, underwear too. He rips Izuku's shirt off his body (not tearing it because he's not a caveman), and then looms there, standing, eyes devouring Izuku's naked body, tearing open the condom with his dry fingers and his teeth, pumping his cock with the other. He gets a slight bit of condom lube on his lips and its disgusting, but entirely worth it to see the way Izuku was squirming, eyes locked on his every move.

Izuku moans like the virgin whore he is, mouth dropped open and desperation all over his face. That's right. He wants Katsuki. He doesn't know what he'll do if he doesn't get him. Katsuki feels it in his bones, and even while the hair on his scalp stands up when he rolls the condom on, it was nothing compared to the way Izuku kicked his legs out and rolled over, presenting, pressing his chest as close to the bed as he can, arms tucked politely underneath himself.

"Good boy, Zuku," Katsuki breathes, panting and crawling up behind him on the bed. Oh fuck, oh fuck, oh fuuuuuuck, "perfect, you're doing perfect."

"Kacchan." Izuku whines, simultaneously trying to look over his shoulder and to stay still. His face is entirely red, but his hips are turned up to give Katsuki the best angle he can. How much of this was instinct, and how much had the nerd researched? Katsuki wants to see his browser history. Resting up behind him, Katsuki puts his hands on Izuku's bare hips, his cock dragging slightly over his cheek. It's tantalizing. "Kacchan this is…" so much, too much, so amazing, so overwhelming.

"Yeah." Katsuki answers, because behind his alpha veneer he's swallowing and nervous too. He doesn't want to blow it. He doesn't want to disappoint Izuku. "It's good, I got you." This felt so good, and he could sense it was only going to be better inside of his omega. His wet, dripping omega, who's hole is the best thing Katsuki has ever seen.

"It's okay Kacchan," Izuku breathes, face turned so Katsuki can just see his eye peek at him, his side profile with his freckled cheeks and the look of love (fuck FUCK) on his face. "You can, you can do it."

Like he needs his permission. (He does). Like he's in anyway in control here. (He really is).

"Okay." Katsuki licks his lips and presses the head of his cock to Izuku's hole, and ignoring the brief sense of vertigo, this was happening right the fuck now its right here Katsuki is right in this moment and going to fuck Izuku like they both want, he presses forward with a careful, steady pace. He draws back lightly, edging forward a bit more.

It's tight. It's wet. It's beyond warm. The condom is completely negligible because the heat of Izuku scorches straight through it.

The pressure of entering makes Katsuki's eyes cross, and he bites holes into his tongue to keep from coming, to pay attention to the way that Izuku was heaving in air like a racehorse, head digging into the bed.

No, Katsuki wanted to see him.

He drags his hands down, up? Izuku's back to his shoulders, urging him, touching his chin gently, pulling so he can hear the way he's breathing, can see at least half of his face.

"Tell me." Katsuki begs (he doesn't beg, he…asks, firmly), "Izuku, tell me."

"It's bigger than fingers." Izuku blurts out, and it makes Katsuki choke on a laugh. Ugh, he shouldn't laugh during sex, he shouldn't…was that normal? Izuku likes it though, as he's half smiling too, almost giggling. Giddy. "Kacchan's inside me."

"Halfway inside." Katsuki corrects, licking lips again.

"There's more?" Izuku breathes, eyes drifting closed and taking over a bit of the careful in-out action that was moving Katsuki further and further into him.

There's a loud disgusting squelch when Katsuki bottoms out. They're silent for a moment, before Izuku's shoulders start shaking and Katsuki raucously starts laughing with him. It's weird to have that levity in the midst of all this heat, but it works.

If Katsuki was romantic, he'd say it felt like finding his lost missing piece. But he's not. Instead, he pets his hand over Izuku's back, following the curve of his spine, over his shoulders, into his hair. Izuku squirms, hips churning and oh, wow.

"Holy fuck, don't move yet." Katsuki's the one who begs (he…yeah, he was begging this time), hips twitching when Izuku starts humping backwards. "I wanna enjoy this."

"I'm enjoying this already, hurry up Kachan." Izuku whines, and its brattish and needy and oh so good.

"Slut." Katsuki says, cheeks aching with the way he's…grinning? Yeah, he's grinning like a maniac while riding Izuku. "Whore." He says it because he can, and because it makes Izuku shiver and shake. He pushes forward, as if he has more to give, but it just squishes Izuku's ass cheeks up against his hips. It reminds Katsuki of the way he squeezed Izuku's freckled face together and has to bite down another surge of inappropriate light-headed laughter.

"Move." Izuku demands this time, snapping his little omega teeth, bucking, and fuck yeah, Katsuki falls into rhythm so easily it's like he was born to do it. Born to fuck Izuku. His omega wants him.

And it was proper fucking, it was everything Katsuki's been dreaming about and better, because real Izuku reaches back and grasps onto Katsuki's forearm, tugging him into it harder. There's wet sweetness dripping over Katsuki's balls, he can fucking feel it.

"You want more?" Katsuki huffs, hips speeding up instead, and he should know how to do this, he watched some porn, he tilts his hips this way, that way. He's nearly frustrated before Izuku screeches, jolting, legs widening so much that Katsuki is dragged down over him, mounting him like a dog, his spine bent incredibly to angle him exactly there. His little hot spot. Katsuki's movements had him rubbing against it on every thrust, and it was hard to maintain the perfect angle. The way that Izuku responded though?

Katsuki would commit it to memory.

"Beautiful fucking pussy." Katsuki pants, taking him, and Izuku moans dirtily. They're right close to the edge already, of course they are, they're teenagers. Katsuki's already impressed by how long he's lasted in something as good as Izuku's little cunt. Something hot pools in the base of his cock. Instinct rears its head.

Katsuki really shouldn't. He really shouldn't.

He's gonna though.

"Gonna knot you." He pants, arching up onto his toes, one hand on Izuku's hip, the other on his shoulder shoving him down into the pillows so his whines weren't so loud. They were too much for his ears. Too much for the rest of him too, as his cock throbs, as he fucks in.

"Kacchan, f-f-fuck-k, do it!" Izuku is gripping at Katsuki's pillow, likely with tearing eyes, with spit running down his chin, hips doing an interesting little tilt on Katsuki's every thrust, and he realizes its to make his cock slide across his prostate a little bit more, his good spot. His littler omega cock hung heavy, red, and ignored; he was using Katsuki for his own pleasure. Saying fuck for the first time in Katsuki's living memory. I want you to f-fuck me! Okay. Second time.

That was hot.

"Almost there, Zuku," Katsuki pants, gripping thick hips tighter, too tight they might bruise but fuck it felt so good, felt so good, felt-so-good, "almost, come on, meet me there, baby, meet me…" He wants them to come together. Should he grab his cock? Pump him just a bit? His rhythm would break if he had to release his hands, but oh, one of Izuku's arms was under himself, he was already doing it and fuck yeah, fuck yeah, baby, yeah, his beautiful omega…

His knot is just catching, it was seconds away from expanding, but Izuku bucks, swiveling upwards and then his hole clutches down so tight Katsuki can barely move, he's been caught, his knot had responded, popping immediately so fast he felt dizzy from the sudden rush of blood away from his head.

Caught, an alpha in a clutch, he was at the mercy of Izuku's body. At the mercy of Izuku, whose face he could only just see, with a wide, maniac smile and absolutely mindless pleasure relaxing his brows.

Izuku squeals, legs jerking and shuddering, vibrating, and he's coming and that's exactly what kicks Katsuki into orgasm too. Eyes rolling, he growls in victory, teeth in his own tongue instead of Izuku's shoulder and neck scent gland like instinct was compelling him. No marking today, alpha. He tastes blood, but its somehow even better with the metallic tang, and he can feel the condom swell around him, cock surrounded by his own seed.

He comes for fucking ever. Izuku whines, shivering, is he cold? Hunching down over him, Katsuki puts his forehead to his sweaty back, puffing out air, rubbing up and down the omega's arms. He needs to be warm.

Izuku keeps his hips tilted, instinct making him accept every drop of Katsuki's come and it's real fucking sexy.

"K-chn." Izuku tries to say, but either his tongue is too big or Katsuki's ears aren't working, because he doesn't catch all of it. They relax together, as Katsuki's spurting lulls down, as Izuku's body stops shaking with the after-effect pleasures of being caught up on a knot. Katsuki rolls his head, because he can't lift it right now it's too heavy and catches sight of the omega's happy smile. Then he realizes he's also smiling, pressing the tiny smirk into sweat-slicked skin and kissing where he could reach.

Lying atop Izuku, attempting to be less heavy but not really trying to move, Katsuki wonders if sex with omegas had healing properties. The static that had lived in the back of his mind for a week was silenced, leaving only peace.

"Fucking hell." He mutters, admiring. The bond thrummed happily, and he hadn't realized how tense it had been till now. A happy omega purring beneath him, stuck on his knot for a few minutes more. A sense of accomplishment, of release easing up his spine.

Is this what tranquility is? Contentment?

Katsuki's never felt it before. Masturbation was nothing like this. It could never measure up again. They spend long moments like that, Izuku purring with a vibration that relaxes all of Katsuki's muscles, Katsuki still hard and knot still stuck, lips planted to Izuku's neck just to feel the way he breathes. This was exactly what Katsuki needed. This filled all the holes, soothed all the hurts, righted all the wrongs.

His heart felt sore with how much it swelled.

They wash up with a warm cloth, Izuku almost unconscious when Katsuki goes in to roughly clean the condom lube and truly an excess of slick from his hole, mumbling and whining and purring when Katsuki kisses him again, addicted. Izuku smiles against his mouth, loving and warm. He smelled like Katsuki.

Fuck yeah.

He was so addicted.

Chapter End Notes

Everything hereafter this is likely to be gentle fluff and love and softness, I would LOVE to hear some ideas on what you think these boys should get up to!

Twelve

Chapter Summary

It was some kind of luck, a miracle perhaps, that two days after their first time, Izuku's bi-yearly heat strikes in the middle of dinner with Inko. Katsuki's rut slams into him minutes afterwards.

Chapter Notes

La la la~ How do authors stick to a publishing schedule? If I have it written, I get so excited, I have to post.

It was some kind of luck, a miracle perhaps, that two days after their first time, Izuku's bi-yearly heat strikes in the middle of dinner with Inko. Katsuki's rut slams into him minutes afterwards. What was it waiting for, Izuku to smell that delicious? Fuck, how the hell did they sync up, they weren't women, or werewolves.

At least Auntie was ready. She had ushered Izuku into his bedroom and then held Katsuki in his dining room seat under threat of her best ladle until his parents came to pick him up. For a beta woman with a penchant for crying, Auntie Inko was certainly formidable.

Parts of Katsuki that are entirely animal thinks what would have happened if, when he and Izuku had fucked, if the heat had struck. Those parts start crowing about breeding. About no condom. About claiming.

And oh wow, okay, is this what ruts were like? Fuck.

There's medicine to deal with this. It stems the flood a bit, quells the instincts that are shouting in Katsuki's head to go out and fuck his omega, impregnate him, claim him so no other alpha can. Bloody up his neck with his mark. Taste it. The meds make it so that Katsuki doesn't lose his head. Doesn't descend into rough instinct. The miracle of modern medicine.

Doesn't mean he doesn't still have the urges to do so. Doesn't mean he doesn't dream of Izuku, of hearing his voice, of what might be happening right now three and a half streets over, four floors up in his apartment, in his room, where he was - fuck- filling himself desperately with whatever he had. In just as much need as Katsuki, only of a different flavor.

What he wouldn't give, to be inside his omega's next right now. The collection of lankets and pillows, the cheerful purring, the happy fussing with each little corner and lump of fabric, it was so charming. It was so indicative of a happy omega, of a safe one, trusting. Izuku had trusted Katsuki even from the beginning. He given him his bloom, turned himself over into his hands. Had begged to be fucked, demanded it hard. Was now over in his room, probably in a comfortable, omega-smelling, soft nest, crying on his fingers without his alpha.

He thinks about calling. Thinks about listening in.

He doesn't, because he's not sure what he would do if he heard Izuku whining "Kacchan" over the phone again in desperate need. Or worse, not whining Kacchan, but someone else's name (as unlikely as the thought might be in reality, Katsuki didn't care at the moment, hissing through his teeth embedded in his pillow and stripping his cock raw in his fist, squeezing harshly at his knot to try and recreate that wonderful clutch of Izuku's body).

Rut was a weird combination of lust and violence. It occurred to him that he would be one hundred percent okay with blasting someone off the face of the earth if they dared try to touch Izuku, to urge him under them, to make him present. Murder wasn't heroic, but holy hell, Izuku was worth it. Anybody would want him. Anybody would try to claim him, Katsuki was certain of it. Shit happened every day, horrific things, when omegas go into a surprise heat around alphas. They'd be helpless. At risk. Some alphas went feral for it, other omegas turned beyond willing. Both were seen as shameful, embarrassing, like they'd given into their instincts like an animal – without suppressors it was near impossible to resist.

Not his omega though, Izuku was likely to kill them first. There was only Kacchan for him.

So hot. How he'd ripped Katsuki's shirt off his body. How he'd growled up at him, snapping, making him work for it. So perfect. So his. All his. His omega, to be filled with Katsuki's young, swelled up with come and slick and locked on his knot. To cry in pleasure so Katsuki can lick it up. Can lick his way down and claim him with a mark, teeth sinking in.

Panting after his latest orgasm, Katsuki notices the tray of cold food left by the door, and wonders if either of his parents had witnessed his shame. Staggering to his feet, Katsuki feels the familiar rush of dizziness that accompanies dehydration and hauls his pallet of water bottles out from under his desk.

As he's swallowing the water, downing dinner as fast as he possibly can, Katsuki has a flash of imagining licking slick straight from Izuku's hole. Water leaks out the corner of his mouth, trailing down his chin. The fountain of youth at its source, gulping down omega wetness like it was ambrosia, the way that Izuku would whine and shiver and look at him like he was the king of the fucking world. Fuck your omega. Why isn't he here? Go find him, hang him on your knot so he can't get away.

Fuck him full of your young.

Katsuki's cock, which had not gone down, twitched helplessly. Ugh.

Shut up, rut.

.

.

Several streets over, Izuku lay staring up at the ceiling in pure fury. Where was his alpha? Here Izuku was, wet and aching and needy and Katsuki was off elsewhere, fucking his fist (or a plastic cocksleeve -even the thought of it makes Izuku hiss) instead of fucking Izuku. How dare he. How very dare.

If Izuku had the presence of mind to walk on two legs, he'd have hunted Katsuki down already and forced him to take him. No alpha of his was getting out of this. He'd come here and handle his responsibility like a man.

Logically, he understood why. If they fucked right now with Izuku in heat and Katsuki in rut, they wouldn't stop until Izuku had taken with child (regardless of the birth control shot, and the patches), and neither of them needed that at sixteen years of age.

But that was his logical brain, which was being absolutely drowned out by the simmering rage of an omega sitting on a fake knot that barely inflated, not like his alpha's. His meds take care of the actual physical pain of an unfilled heat, of an omega body revolting because it needed a knot and semen now, but he still had to suffer through the frustration and huge sexual hunger, alone, for three days.

What if Katsuki found another omega.

Immediately, even while Izuku's omega snapped into attention, biting, screeching, Izuku bites his lip almost hard enough it bleeds. No. No.

That's stupid. It's stupid to be jealous! Katsuki…Kacchan…he didn't want another omega. He didn't. Izuku had bloomed for Kacchan, how better could he have proven his eligibility? Katsuki had immediately accepted the bond, had worked hard to feel worthy of it (oh Kacchan, Kacchan, oh, he's working himself on his toy again).

A faceless person speaks to Katsuki. They put their ugly, stinky hand on Katsuki's arm, touching his bicep – Izuku's bicep – and lean forward, threatening to scent him, to mark him.

Fuck. No.

Growling to himself and absently grinding his teeth, Izuku imagined claiming Katsuki when he saw him next. Just walking up and snapping his gland in his jaws and biting down hard enough he'd never escape Izuku's marking pheromones, forever smelling of Izuku and omega and all taken.

The memory of their first-time only days ago soothed much of the heat-itch but caused several more. Katsuki had been so good to him, touching him just right, showing him just enough dominance but also how nervous he was, how vulnerable. Working his hips, Izuku lets his head fall back and imagine the kisses, they way Katsuki had breathlessly panted into his mouth. Calling him a slut, and a whore, and oh, yes he was, he was, just for Katsuki, Katsuki's slut. He shivers, thighs wet with the flood he was sitting in. Man, he'd have to clean his mattress, despite the number of towels he was nested with and the liquid defender sheet that his mother had quickly thrown into his face when he's started feeling hot at the dinner table.

He' started sweating, blinking looking at Katsuki and imagining suddenly a knot and no condom and feeling fat with come.

Katsuki had dropped his spoon at his sudden scent, and that was what had kickstarted his mother into moving.

This was utterly unlike his other heat he'd had since his bloom, where he'd just been confused and needy without any idea how much it could feel so good. How Katsuki could fuck him so deep and well and fast and hard, exactly what Izuku needs. Calling him baby, calling him Zuku, and oh that was cute. How Izuku's heart would swell just like his belly would with the heavy surges of seed, of Katsuki. This heat knew now what that felt like and oh gods, yes, Kacchan please, alpha --

Izuku creamed once more on the heat helper appliance (it was just a dildo with a fake knot at the end, too small to do anything good, and a truly awful light salmon color), panting into his pillows and imagining Katsuki's teeth in his neck. His alpha. His beautiful strong, capable, amazing alpha.

His mother's soothing pheromones wafted in from the hall, as she carefully nudges the door open and rolls in a tray of food, his favorite. Katsudon. Izuku didn't really want to eat it, not unless it was served on Katsuki's abs.

Now there's a pretty thought.

.

.

A week after their respective heat and ruts ended and they were moving into the dorms. They'd barely got the chance to see one another, somehow both hornier and so embarrassed at whatever they'd been thinking during their lowest moments.

Izuku had boxed up all his things and felt a little weird, standing at the door of his childhood bedroom with nothing inside it or on the walls. His mum sobbed her heart out in the kitchen, fussing about with a casserole dish he was to take with him and feed to the others. He felt guilty about it, guilty and a little worried. Here he was, moving somewhere else for safety, but his mum was going to be all alone. Vulnerable. What if someone went after her? The villains knew his name…they'd be able to find her…

All Might tries to settle his worries, even as beaten up and aching as he was. He's going to put more effort into training him. Izuku doesn't know what that could even look like…he already felt like he took up too much of All Might's time. He should figure this quirk out himself, just like Kacchan always says.

And the dorms were a whole process. Izuku did his best to recreate his bedroom of All Might and merch, but the noise of many feet and several voices outside his door was so alien he didn't know how to feel. The scents were all wrong too. There were too many.

He'd only seen Todoroki-kun and Shouji-kun so far, who were moved in and in the process of setting up their rooms. Everything in the dorm was brand new, just been built, and that meant everything was clean and sterile and scentless.

He doesn't have enough blankets, nor pillows. Not nearly enough.

And none of them but his stolen hoodie smelled like his alpha.

Ruminating on this for a little while, feeling a bit frustrated, a bit out of whack, fresh from heat and fresh from his first ever orgasm on a real alpha cock (his alpha's cock, so good; dammit stop thinking about sex), Izuku is a little unprepared for the messy mix of emotions that are steadily filling his chest. He should get a handle on that. He might end up being a nuisance to everyone if he got distressed, nobody wanted to smell a distressed omega.

Scent patches? Would they help? But he hasn't even seen Kacchan yet (he's not pouting. He's not! He shouldn't be so clingy, Kacchan might not want a clingy boyfriend…mate…were they boyfriends? Oh no, were they even together?! They'd never said anything, there was no explicit agreement, they'd just started acting like this, oh god, what if--?).

Lo and behold, that was when Katsuki stomps into his bedroom without knocking, glances around at the hero idolization, snorts, then nonchalantly scents Izuku intimately. Across the cheeks, with his chin, and then, daringly, grinding their neck glands together for one breathless arousing second. It's mate behavior.

It makes Izuku chirp.

"Nerd." Katsuki greets, nonchalant. In a black T-shirt and baggy black pants, he's the most attractive thing Izuku has ever seen. He chuffs him over the forehead, then kisses him sweetly, and it soothes a bit of the restlessness in Izuku's mind.

"Hmm," he hums a smile into Katsuki's mouth. Katsuki eats it from him, turning his head to delve deeper with a bit of teeth and a lot of tongue.

Something slams outside, and they break apart, Izuku a little dizzy with it and a string of saliva braking off to decorate his bottom lip. Katsuki eyes him, tonguing his teeth, and smirks.

"Hng." Izuku says to him, unable to process words at the moment. Another bang form outside and irritation flickers over his true mate's angular face.

"No fucking privacy anymore." Katsuki growls, falling into Izuku's bed and putting his arms behind his head. "If anyone goes into my room, they're fucking dead."

"I don't think anyone would dare." Izuku chuckles but does make sure to lock his door handle. Then he clambers over to join Katsuki in bed, enthusiastic and excited, jittery with the feeling of Kacchan-in-his-bed. Smirking, Katsuki lifts his arm and accepts his weight, pulling him in.

"I'm a little excited though, to live with you." Izuku whispers against black cotton, rubbing his cheek on a firm pec and savoring the feeling of smooth fingers trailing up and down his bicep. He can't help purring.

Katsuki shifts, cupping the bottom of his jaw, and then he's being kissed, deep and slow, and he falls just a little bit more in love with his alpha.

Who is he kidding, it's hard to find more love when it's already a bottomless pit.

Thirteen

Chapter Summary

The dorms were free range for a collection of teenagers most of whom had never lived on their own before.

Chapter Notes

who ordered some pure fluff? this is personal fan service, I admit it.

this was also the very first chapter I really wrote for this fic! fun how it evolved, huh?

The dorms were free range for a collection of teenagers most of whom had never lived on their own before.

They had to lay down new laws, create new languages, discover new cultures and ways of doing things, all in order to survive. Mere survival was a struggle, since the majority of the class were alpha, all of them learned in the ways of violence (some more than others), and with quirks that they use shamelessly. Rules had to be made, unstated unspoken, but as important as the ones Aizawa had laid down at the start.

These hidden rules include: respecting Bakugou's sleeping hours, leaving Aoyama's cheese section in the fridge be, ignoring the odd bangs or crashes from Kirishima's room, not entering Tsuyu's room under pain of a tearful frogger, and making sure to always have pints and pints of ice-cream on hand for the women. And Tokoyami, the weird fucker, who would likely kill a man for chocolate mint.

Uraraka doesn't wake up very fast, it might take her the entirety of breakfast to say a single word. Sero has a Spanish grandmother who taught him enough Spanish that he can speak it and annoy Bakugou at any moment. He abuses this privilege often.

Hagakure had a bad habit of wandering around in the nude when she sleepwalked. Koda had a bunny, who was not often allowed outside of his dorm, no matter how much Ashido and Kaminari begged. The kitchen was Katsuki's domain, do not mess with it on pain of explosive involuntary haircuts. Kaminari watches a lot of English TV, without subtitles, and provides hilariously inaccurate translation just for fun. Iida can, and will, document your every hour of activity in order to present you with your average percentage of productivity versus time wasted. It's a bit of a soul crusher.

Don't touch Izuku's action figures.

Sato's cakes were unparalleled. Ojiro hates mushrooms with every fiber of his being, and if you sit next to him, you'll find even the smallest pile of minced mushroom collected on the corner of your plate. Shouji was probably the politest, the most respectful, and the most helpful with household chores. Todoroki walked as quietly as a ghost and doesn't mind eavesdropping and bursting into your conversations at any moment. He doesn't quite grasp the notion of privacy.

Jiro loved instruments, and she was amazing at nearly all of them. Mina dances in her free time, to chunky old-school hip hop. Momo didn't understand the difference between convenience-store quality and high brand quality until they held a blind-folded taste-test quiz where she had to identify the difference between fast food chicken nuggets and high-end-brand chicken nuggets. As with most Class 1-A events, this turned into chaos very quickly, and nobody really got an answer.

The less said about Mineta the better.

What even fewer have encountered is living with an omega their own age. One who was as sweet and beautiful and pure as Izuku and being faced with the realization that omegas are not always sweet, and beautiful and pure. The sole omega of their class (sexism, still loud and proud in the year 20XX), Izuku was left with a motley collection of betas and alphas who had no idea how to handle him when he got…spicy.

The most unlikely of allies in this struggle, as seen by Class 1-A, was Katsuki. Unlikely, because despite the obvious bond between the two boys, the explosive blonde didn't really act very mate-like in their presence. There had been no clear communication that they were together, only that they almost acted like it. It could just be Katsuki's weird alpha possessiveness over a childhood friend, btu the stars that shone in Izuku's eyes whenever they were together was a bit more revealing. So, one day, when Izuku was having a full-blown meltdown out of nowhere (Todoroki had only asked a question about how slow Izuku was moving, honest), Katsuki comes to their rescue.

"Deku, shut the fuck up with that caterwauling!" Katsuki rears around the corner into the living room like a bad storm, chucking a pillow straight into Izuku's face so hard he flops back onto the couch with an 'oof!'. "You're moody and bitchy cause you're about to have your fucking period, now shut the fuck up!"

"But Kacchan!" Izuku wails from beneath the pillow, legs akimbo, hands clenched in fists.

"No fucking buts! You're gonna have a spicy dinner so you'll stop complaining, you're drinking an entire pot of that stupid strawberry tea, and you're going to bed, early, before you cause world war four in this dorm!" Katsuki snarls, stomping forward to lift the pillow and yell into Izuku's face. "Are we clear!"

"Yes, Kacchan." Izuku mumbles, cheeks puffed out like a chipmunk, mutiny in every freckle. "Can you add that spicy garlic sauce?"

"Yes, I'll add the fucking garlic sauce, now curl up with your nerds, and relax." Katsuki sighs, stuffing the pillow back into Izuku's face, the omega wrapping his arms around it like a teddy bear and rubbing his face every which way into the fabric. It's only then the group around realize the pillow is straight from Katsuki's own bed.

Katsuki stomps away into the kitchen to start throwing things around and chase Kaminari out with a ladle, and the rest of the class in the living room sit in dumbfounded disbelief while Izuku snuffles in relatively content pleasure into Katsuki's pillow.

"Deku-kun?" Uraraka ventures to say.

"Sorry Uraraka," Izuku says, as he flushes a little shamefully. There's the crash of a pan in the kitchen and Katsuki's voice snarling at Sero, who was attempting to wheedle a portion for himself. "I don't mean to be a hassle."

"No, no!" Uraraka shakes her hands out in front of herself. Cross legged, she sat on the couch with her science text in her lap, ostensibly they were supposed to be studying but then Izuku had fallen into a spiral and started crying and she hadn't known to help. Was it through some sixth sense that Bakugou knew he was upset? What else would make him grab his pillow on the way down. A pillow that was now clutched tight between arms and legs of an omega who dips his nose down every few seconds.

"I know I don't understand a lot of what omegas go through," she laughs, smiling, "So I'd love to learn from you! I, for one, am glad someone else in our group understands how awful periods are." She artfully whispers with her hand up to her mouth, raising her eyebrows at the nearby Iida and Todoroki, who had frozen stiff at the first mention of Izuku's…cycle.

"Sure! I'd love that!" Izuku beams, and despite the patch on his neck, Uraraka feels herself relax just a bit. The calm scent of an omega, she had never lived so close to it before.

Katsuki bustles out with a bowl and glass of water, urging it into Izuku's hands and ignoring the rest of them who watched this odd behavior in particular interest.

"Thank you for providing, Kacchan, it smells delicious!" Izuku cheers, every freckle brightening, cheeks pink as Katsuki can't seem to help himself from running a hand over his green fluffy hair and behind his neck. Izuku leans into the petting, and the words coupled with the sheer gratitude that seeped from his pores made Katsuki's own cheeks pinken.

"Fuck you." He barks, turning and rushing away to get his own meal. Izuku doesn't seem offended, diving into dinner and groaning at the spice.

"Kacchan's so good." He mumbles to himself, and they sit and stare at him for a few minutes before he notices. "What? You know he made enough for all of us, right? Ignore what he says, watch what he does, instead." Izuku takes another bite and grins around it, as they attempt to not look like they were running to get to the kitchen.

"God, I hate him, why is he so good at everything." Uraraka sighs around a bite of (truly delicious) dinner.

"Couldn't tell you, but he always has been." Izuku shakes his head, smile turning soft.

"You looooove him." She teases, whispering it, leaning over so she can nudge her elbow into his side. He stutters, flustered, turning bright red. Katsuki turns his head from a table a little way away, hounded by Kirishima and Ashido for his recipe, and Izuku ducks his in response, hiding within the pillow with an embarrassed giggle. God, they were cute, they might as well just come out and say they were in a relationship. Not like Katsuki really tolerated anyone else nearby Izuku unless they'd proven themselves able to fight. Except for Todoroki-kun, she knew he had some kind of grudge against him. Perhaps because he was steadily beat out of the top spot by him, and worse, who really didn't care about competition.

It must drive Katsuki mad, competing against another alpha who had expressed little to no interest in competing back.

Laughing, Uraraka continues to each her food and grins at Katsuki when he eyes them. He glowers and throws up a middle finger.

She returns it cheerfully, ignoring Iida's squawk of indignation.

.

.

A separate event, of perhaps more significant seriousness, occurs later. Off cycle, (everyone kept track of it now, realizing how much of a struggle it was to contain an upset, menstruating Izuku), said omega was devastating the kitchen. Throwing open cupboards, yanking out snacks only to eat three or five bites of it before giving up and slamming the fridge open.

"Deku-kun?" Uraraka asks hesitantly from the living room opening. "Are you alright?"

Unnoticed, Katsuki rounds a corner, hands in pockets, stopping at finding Uraraka being the only one brave enough to sit up and look at Izuku. The rest of the nerd squad, Iida, Aoyama, Todoroki, and even frogger, Asui, huddled behind the couch back out of sight.

Weaklings.

"I'm upset!" Izuku half-shrieks from the kitchen, huffing through a sniffling nose. Just the hint of him raising his voice made them all flinch bodily, memories of that awful night at camp lingering in the back of their minds.

"Why are you upset, Deku-kun?" Uraraka asks gently, soothingly, trying and failing to send out the correct pheromones to match Izuku's admittedly intense distress signals. They're on the verge of calling for Aizawa. Surely the man had systems in place to help…things that would…calm a distressed omega?! Distress was bad for omegas, and it affected alphas just as much! Even the beta Asui didn't know what to do, even if the scents barely affected her. What can they even do?!

"I don't know!" Izuku slams the door of a cupboard a bit too hard, the wood cracks, and he whines in worse distress for breaking it.

"Hot or cold, nerd?" Katsuki grunts, leaning on the kitchen doorway.

"Bakugou!" Uraraka hisses in concern, glancing to the stampeding omega. Tentatively, the rest of them start poking their heads out from behind the couch, like they're seconds away from taking refuge again. Izuku curls his hands into fists and glowers through angry tears at the floor. There's none of the usual 'Kacchan!' or happy chirping that accompanies Katsuki's appearance in his vicinity.

"Cold."

"High or low?"

"Low." Izuku rubs at his face, breathing heavily.

Katsuki frowns then, and it ratchets up the observing party's concern.

"Have you cried about it yet?"

"Twice, and nothing feels better, and I'm not going to bleed, thank you, I just, I just don't know what…to...doo!" Izuku lets his head fall back and wails a bit, crying heavily, sobbing great big sobs that shake his whole frame.

Todoroki yanks at the couch cushions viciously, Iida holds him and Uraraka back with large, tense fists, both who look like they're trying to leap over the edge to run at the omega and smother him to make him feel better. With his palms over his eyes, for once Aoyama wasn't smiling that curly smirk. Asui has a concerned hand over her mouth but is smart enough to let Bakugou handle it.

"When's the last time you nested?" Katsuki chimes in mid-wail, red eyes taking in every inch of the omega, drawing closer like he wasn't drowning in upset pheromones. The others watched in awe and confusion with how the teen can remain so calm in the face of pure omega distress.

Izuku hiccups, rubbing his cheeks, and turns to Katsuki. Mere steps away, the blonde raises an eyebrow and scratches his unpatched neck, alpha pheromones pumping steadily in a normal, regular, comforting pattern. To the other alpha's noses, he stunk a bit like caramel burnt to the bottom of the pan. Clearly to Izuku, who was tentatively snuffling, rubbing at his cheeks with fists, he smelled pretty good.

"A…a while." Izuku sniffs, reaching out and snagging fingers in Katsuki's black shirt. He stumbles closer, sniffing gently, swallowing. His great big green eyes open dolefully, and Todoroki commits self-preservation by collapsing behind the couch again so he couldn't see it.

"Grab those." Katsuki grunts, pointing his chin to the chip bag Izuku had abandoned at the beginning. He reaches into the fridge and steals two of Sato's protein shakes, sugary ones, and nonchalantly strolls out of the kitchen and down the hall like he doesn't have Izuku clutching his shirt like a small child behind him.

Curious and unashamed, the group follows.

Katsuki enters his own room, lets Izuku in and flicks a middle finger at the following group. With just enough time, they spy Izuku crawling happily into Katsuki's bed, which seems to have an abnormal number of blankets, clothes, and pillows stacked on it, ready for Izuku's organizing pleasure, before Katsuki snaps his door shut in their faces.

"Fuck off!" He bites out from behind it, and there's…purring. Izuku purrs for Katsuki.

"That's sweet, kero." Asui taps her chin. "That's very sweet."

"What is?" Uraraka asks as they leave the two alone finally, Iida flustered a bit pink. "Deku-kun?"

"No, Bakugou-chan. He's acting like a real alpha. It's sweet."

Within the safety of Katsuki's room (territory marked with his chin on each wall, each corner and all around the door), Izuku huddles into the nest and purrs. All wrapped up in blankets and Katsuki's clothes, Izuku looked like he had everything perfectly placed for maximum comfort. He kneads the pillow in his hands, curled up around it so it was between his thighs and under his chin. It smelled like Katsuki, and that was okay. It would smell like Izuku too soon enough.

Katsuki sighs, abandoning whatever schoolwork he was reading ahead on, since he was normally at least two weeks ahead in every subject, he had an omega to cater to.

"Love to cause problems don't you, you little shit?" Katsuki grunts, turning in his chair to peer at the omega. The omega, who ducked his head into the sheets. "Don't you hide from me, Deku."

Ohh, Izuku shivers at the outline of alpha in his voice.

"Why didn't you say you hadn't nested properly for too long?" Katsuki asks, eyeing the way Izuku immediately flushes and doesn't meet his eyes.

"…didn't want to be clingy." Izuku mutters, and it's so stupid Katsuki nearly laughs. But Izuku smelled a bit sour again, just like he had down in the kitchen. Cold and low. That was sad. Proper sadness, depression, and depression was very bad for omegas. For his omega specifically. Katsuki wouldn't let his omega stay cold and low for long, not when he has Katsuki for an alpha.

"Who the fuck called you clingy?" Katsuki grumbles, nearly growling, getting up to nudge and shove his way into Izuku's nest like he was claiming territory (being very, very careful not to disturb too much of the artful pattern. He'd learned the hard way before that Izuku had a nasty knee-to-the-gut reflex for shit like that).

"Nobody." Izuku answers, putting his nose in Katsuki's armpit for a moment before wrinkling it and working his way up to his neck. "Me?" He confesses almost with a question.

"What the fuck for?" Katsuki demands. "You just go around making yourself sad?"

"Well...sometimes." Izuku answers, and it's infuriating. Katsuki rolls his eyes and growls this time, snapping his teeth playfully near Izuku's ear and liking how the other giggles and flinches into his chest. Wrapping his arms around him, Katsuki tries to remember the primer on omegas his mom had gotten him way back when Izuku bloomed. He'd been smacked over the head with it enough by now, it should have absorbed completely.

"You need nesting the way I need to mark my territory." Katsuki says. "The fuck are you doing trying to avoid it? Answer me properly this time."

Izuku thinks about it, and Katsuki allows him to, because he smells calmer and calmer the longer they lie there, warming the nest with their combined body heat.

"I don't know." He says quietly. "When we all moved in, I was so concerned about behaving too much like a, like a too needy omega, in front of the others that I tried to put it off, or pretend I didn't need it? It backfired though." He laughs, a bit ashamed.

"Sure fucking did." Katsuki tells him so, because it was the truth and he was nothing but honest. But then he chuffs him over the forehead and drags his lips there. "Tell me next time you get this shit stuck in your head. My omega can't be too clingy." If Izuku never even looked at anyone else but him, he'd be happy as a fucking peach.

But in saying it out loud he's immediately embarrassed. He glances away, pink cheeked and glowering. The pleased little purrs and chirps he gets in response, and the cute, freckled nose submitting to the underside of his chin, makes it worth it.

"I am your omega, aren't I?" Izuku says, entirely too pleased.

"Well, you're sure as fuck not anyone else's!" Katsuki snarls, wondering where in the hell the other got the idea that he wasn't. He dives in for a rough scenting, biting at his stupid little ear. Izuku just laughs into his skin, licking, and they spend the rest of the evening soothing Izuku's omega.

If they get up to a little bit of nook--don't say it! Don't even think it! If they end up getting hot and heavy, Katsuki mentally just tells his neighbors off and simply enjoys Izuku's scarred hands on his body and the feel of muscles under his palms.

They fall asleep, Izuku in Katsuki's bed, but nobody calls them out on it in the morning.

And then Katsuki bullies Izuku back to his room with an armful of his dirty laundry, throwing it haphazardly all around the room just to watch with glee and interest how Izuku wrinkles his nose at him and then bustles around fixing it all, mumbling the entire time.

Fourteen

Chapter Summary

Taking him out late one night, Katsuki holds Izuku's wrist in a halfway motion to holding hands, stiff and uncomfortable, all the way to Ground Beta.

Katsuki is struggling with something. Izuku wants to ask, but knows he can't, it would drive him off. Taking him out late one night, Katsuki holds Izuku's wrist in a halfway motion to holding hands, stiff and uncomfortable, all the way to Ground Beta.

There, he asks for a fight.

And it's groundbreaking.

He asks for one. With shame and fear and self-hatred lining every muscle of his body, Katsuki ducks his head away, almost in formal submission but not quite, and asks Izuku if he would fight him, please, he wants… he needs…

He can't quite articulate it, but the desire, the need to prove himself, to see Izuku prove himself to him, is very real, and very necessary. Izuku knows in the back of his head that should he refuse; their relationship would not be the same. It might not even survive. Not when Katsuki was looking at him from behind a wall of aggression and loss and on the verge of angry, furious tears.

And…well…Izuku wasn't a bullied victim anymore. Hadn't been for a long time. He wasn't even a crybaby anymore. He…he wanted to fight too. He wanted to fight back.

Was that fucked up? Not for them. Not for them, whose livelihoods depended on their fighting ability, whose sense of worth and trust in each other relies on strength both moral and physical.

So, they do, and for a brief fifteen minutes, they are nothing but two fighters trying to win.

Katsuki pins him, he wins, and yet none of the fight leaves Izuku.

He growls up at his alpha, tense, head being ground into the dirt in classic submission, neck exposed. He's not frightened, not of Katsuki, not of the threat of his teeth. He shouts back, he demands more from Katsuki, he forces him to look at his problems in the light of their combined quirks.

That's what he needs, what his Kacchan needed, as he breaks down atop him, crying, yelling.

Kacchan, was…crying. He was hurt. Brokenhearted.

"I was the reason All Might had to retire!"

"I'm the one that's weak!"

Izuku on the verge of tackling him, perhaps to kiss him, perhaps to punch him in the face a bit more, heart pounding.

And then All Might walks up to them, sad and accepting, and everything is better.

Not fixed. But better.

Katsuki grumbles, still hurting, fists clenched, but his soul is recentered. His omega is strong, stronger than him, but that doesn't itch and ache the way he might have thought it would a few months ago. Just another bar for Katsuki to reach and overcome. He'd beat him to the No. 1 spot. And he'd watch him get better every step of the way. Their fight just now was so close. He'd pinned Izuku down, who hadn't let up even an ounce of fight, and it was only 8%. His omega. All Might's successor. And still his Deku.

It's good, he's tired, and yet all he wants to do now is lick into Izuku's mouth.

Not in front of All Might, for fuck's sake.

All Might walks them to their dorm, sends them to bed while he goes to confront Aizawa. He winks at Izuku, who blushed a bright furious red, but Katsuki takes it for the permission it is. Snatching his omega up, Katsuki rushes them to his bedroom (like hell is he fucking Izuku under six posters of All Might grinning down on him) and has him naked in two seconds flat. Izuku helps him (no, he doesn't really) by crooning some more, drawing his fingertips through blonde hair, urging his alpha to take him more, to touch him, to put his lips on everything.

Then Katsuki's falling to his knees and licking his way to redemption through Izuku's slick. Making gasping, shocked noises, Izuku's hips are moving on their own, working Katsuki deeper the same way he does with cock. His tongue isn't long enough, but he does his best, so much so that jaw ends up feeling numb and strained. Izuku whines at him, beckoning, and he goes, digging his cock from his pants to press inside.

Well, Izuku slaps a condom wrapper against his face first with a high-pitched giggle, and he does take a moment to slip that on, but then he was inside.

With his hand around Izuku's mouth, Katsuki puts his lips to his neck and fucks him up against his dresser drawers, Izuku's knee angled up and over the ledge so he's open and trembling on his tip toes.

When he comes, Katsuki seizes up and knots him, gasping out an emotional "Fuck, Zuku" that sounds to Izuku a lot like I love you. Izuku breaks apart on Katsuki's cock, crying, spattering, saying his name over and over into the wood of the dresser. The knot recedes quickly (perhaps Katsuki's exhaustion, or the angle, or whatever), and Katsuki massages Izuku's hips while he helps him off the dresser, grimacing at the wet sopping full condom that hung off his cock like a water balloon.

Gross.

(but imagine all that inside of Izuku, leaking out --hhngg).

"Kacchan-" Izuku starts, determined and beautiful and probably about to hit him with some inspirational heroic bullshit that he would remember for the rest of his life, but then from outside the door comes a deadpan:

"You have five minutes to get dressed."

Aizawa.

Izuku squeaks and dives under the sheets, like Aizawa can see him through the door. Granted, Katsuki also feels utterly uncomfortable, wondering if the older man had heard Izuku's noises just now. The walls were too thin. They hadn't even gotten a chance to kiss yet, that's Katsuki's one regret (amidst his alpha's satisfaction, purring contentment, the resolution of a fight well fought and a future laid out).

"Yeah. Whatever." Katsuki tries to say, coughing, because even he feels embarrassed sometimes.

"Oh, my god, Kacchan." Izuku says (for the third time that night, but in a significantly different tone of voice), crawling into his clothes.

Aizawa's tired glare had the combined power of all three of their parents, wrapped up in exhausted-disappointed-homeroom-teacher-slash-parental-figure.

"It's a losing battle to ask you to refrain from having sex. I would prefer it didn't happen in the dorms where your classmates also live, but knowing the two of you, there's little I don't already expect." Aizawa starts. His eyes are dull but pin them in place.

Izuku is staring at the ground out of pure dreadful embarrassment. Katsuki stares competitively back, ignoring how hot his ears are. Aizawa's not wrong.

"Three days suspension from class for fighting, four for Bakugou for hitting first, cleaning duty during your house arrest for leaving your dormitory after curfew, and a written paper detailing what rules you broke and what you're going to do better due next Tuesday morning. And mandatory attendance to a Sexual Education workshop held by Recovery Girl. I can only hope you're practicing safe sex." Aizawa lays down the law, before frog-marching Izuku to the bath and then to bed with a firm hand on his skull. Katsuki is left in his bedroom with the scent of Izuku hovering wet and delicious in the air. There's even a small pool of slick on his carpet.

Despite the emotional night, and the embarrassment, Katsuki goes to bed smug.

The worst of the fallout was sitting with Recovery Girl and Aizawa, as the old woman walks them both through an omega's reproductive process. With pictures.

"It is a myth that an omega can't get a woman or another omega pregnant. They still create semen, and they still ejaculate the same as any other male. It is simply of less viscosity and less volume than an alpha. The anatomy of the omega's penis is actually far closer to the clitoris than an alpha or beta male, including the internal g-spot here in place of a prostate." She taps her ancient laptop to show the next slide.

"During sexual arousal, the omega's anal passage secretes the equivalent of vaginal fluid. This fluid, also known as slick, has cleaning and minor aphrodisiac effects. However, it is only during heat that the anal passage opens into the vaginal track closer towards the belly button, which ends in an extra pouch of organ tissue known as the uterus."

She points with a long stick at the cross-cut diagram of an omega body, where a dark squishy drawn tunnel has a weird flap like the esophagus does, and how it branches into an equally soft and squishy looking triangle organ with little round numbs hanging on two fleshy tendrils. Bodies are weird.

In that back of his head where embarrassment lived puny and weak, Katsuki at least consoled himself that this class would be held in class too, for the rest of the idiots to suffer through as well.

"This is the cervix, the entrance to the womb, and beyond it, the uterus. Medically, and for a last defense contraception, it is always best to use a condom during intercourse. Even semen days old in the vaginal cavity would catch in a sudden, irregular heat. An omega's ovaries are actually slightly above where a biological woman's would be –" with eyes glazing over, Izuku and Katsuki stared in muted horror as she plays a video of the omega birthing process. It's visceral, grotesque, and reminds them both of that one horror movie they watched when they were ten and stupid.

Aizawa, the bitch, was napping against the wall.

Fifteen

Chapter Summary

Whatever the hell happened between Katsuki and Izuku to make Aizawa give them house arrest (and that god awful sex-ed class, thanks guys) had resolved a lot of the tension in the dorm.

Chapter Notes

Have some bakusquad shenanigans!

Whatever the hell happened between Katsuki and Izuku to make Aizawa give them house arrest (and that god awful sex-ed class, thanks guys) had resolved a lot of the tension in the dorm. Everyone was getting along, there were fewer territorial disputes, and life gained a routine. If you asked Mina, it was because Katsuki ad Izuku were the 'it' couple. The lynchpin so-to-speak.

The 'fuck-you' pin, if you asked Katsuki. Izuku just dissolves into blushing nothingness, so don't ask him.

"No, seriously!" Mina complains when the self-proclaimed bakusquad collects in Sero's room for some last-minute studying. Kirishima and Mina herself were supposed to be going over the English assignment they'd both tanked last week, to improve their rating and give them a better shot at the make-up quiz this Tuesday.

Kaminari, who was good at languages, was plucking at the tassels on the tapestry that hung on the wall, and Sero was…vibing in the bean bag chair, half lidded and smiling. Katsuki was sure he was high, but he hadn't caught him with anything yet. It was only a matter of time, Tape Face…

If you're found out, you hand it out. That's only fair.

"You and Izu-kun, you've got like…the perfect relationship!" She huffs, tugging at her earrings and fussing with her hair bonnet (cheetah print). It was just close enough to bedtime; they were all tired. "You don't have any of the stupid sexist, terrible behaviors hetero men have all the time. I can't even get a date without some guy being insecure because I'm in the hero track." She rolls her eyes. "It's cause I'm a woman and more capable, isn't it? Isn't it?! I couldn't even imagine being an omega on top of that."

"We could have been that." Katsuki replies, solemn, half-distracted and open and vulnerable.

The squad quiets, tuning in, respectful.

"How do you mean?" Only Kirishima could ask that and remain alive. Katsuki raises his head, looking at them, half-focused on something else.

"There was so much we worked through, before UA even started." He says frowning. "I don't deserve an omega like him, and I never did. But I really, really, fucking didn't back then." He shakes his head, marking something off his page. "Every day I fuck up, and it has to be every day that I fix it. It's the only right thing…it's what he deserves."

"It's what you deserve too, bro." Sero says, lilted and weird. He's made of long limbs and bulky elbows, and his shirt is riding up. Slob.

"Fuck you, bro." Katsuki says, just to be contrary. "Have you finished the heroics paper due tomorrow?"

"Uhh…" Both Sero and Kaminari's eyes widen. "What paper?"

Snorting, Katsuki turns away and lets the others start panicking. The paper isn't due until Friday, but they don't know that.

His eyebrows furrow, his alpha paces in his chest. He thought he'd resolved all that shit with the Ground Beta fight (glorious, arousing, beautiful fucking Deku with his spins and his kicks), but here he was, still chewing on something. Fucking hell, whatever it was, it was about to be everyone else's problem.

.

.

And so it was.

The dorm started walking on eggshells around Katsuki after he snapped at the front door, throwing everyone's shoes at their heads if they hadn't put them away properly. After the third time he exploded someone (usually Kirishima or Sato, someone who could take it, of course) out of the kitchen, screeched like an unholy demon spawn at five in the morning when he found his laundry dumped outside of the dryer, and bit off everyone's heads if they drew too near (even, but not really Izuku), they started avoiding him when he was out free in the halls.

He isn't in rut. He really isn't. But something is off, and he's fighting back this mysterious nothing with aggression.

It's his only stable function, so it's not his fault when his 'squad' or whatever the fuck they call themselves go whining to Izuku (of all people!) when Katsuki's cleaning the fucking living room for the third fucking time this fucking week. Slobs, all of them. Dirty disgusting slobs. He should just incinerate this couch, for all the crumbs that were in it. Disgusting. Unsanitary. Too dirty to live in, not his den.

"Kacchan?" Izuku, with Kirishima and Kaminari clutching onto his shirt, blinks confusedly.

Snarling, Katsuki almost growls (almost), instead vibrating with the urge to maim, mutilate, and destroy. The vacuum in his hand creaks warningly.

"It is a bit dirty, isn't it?" Izuku comments lightly, finger on his chin. He's acting like Katsuki wasn't a hairsbreadth away from murder, and Sero and Mina exchange alarmed looks.

"Fucking obviously." Katsuki bites out.

Izuku barely seems to notice. "It must be from movie night last night? Maybe everyone went to bed really late and were going to get to it in the morning. It's Monday though, so they probably forgot about school being so early." He cheers up, beaming, a pillar of sunshine and cotton candy against the dark roiling mass of rage that is Bakugou.

"Here, I'll help!" He chirps and starts gathering up the plates and cups and knives and forks on the living room table. He's piling them all into one arm like they aren't getting heavy, bicep bulging, and wow that is attractive. Katsuki, watching him, has somewhat forgotten about the Bakusquad's presence.

At least, until Kaminari sneezes because of the disturbed dust and draws the dragon's attention.

Death in his eyes, Katsuki turns to them all and hisses, "You have hands, don't you?" And they leap to obey.

Lesson learned, Katsuki ran a tight ship. Iida nearly got beat up when he re-organized the utensil drawer in the kitchen.

Turns out, Katsuki just needed to lick Izuku all over until he smelled entirely like him. Over the course of the day, Izuku sweats and people touch him, and he changes clothes a few times, which means Katsuki's scenting in the morning goes away. Without the routine of walking to school and walking home, Katsuki had been missing out on the regular scenting, of making sure his omega smells like him, and since they all live together, it was almost impossible to smell Izuku under all that.

Well, Katsuki deemed him free to go once he was completely sticky with saliva, dazed from a truly breathtaking orgasm, and with a new appreciation for Katsuki's mouth.

Izuku passes Kirishima in the hall, who slaps a hand over even his beta nose, and blearily smiles at him.

"Hi." He says, swaying off to his floor. Kirishima watches him go, eyes watering.

Katsuki, in light of his new appreciation for Izuku's scent, started paying more attention to who would touch his omega the most. His nerdsquad, obviously. Katsuki was fine with Cheeks, Frogger, Sparkles, and Glasses, they weren't threats. Icyhot on the other hand, Katsuki only tolerated in his best of moods.

Fucker.

And then there was Kirishima.

It was alright with Katsuki, not only was Izuku probably more loyal to him than to All Might (and yes, he's smug about it), but Kirishima was one of the few he'd trust with Izuku if Katsuki suddenly like, died. Not that he was going to. Ever. Nobody would defeat King Explosion Murder.

But Kirishima put his arm around people a lot, he was touchy feely, including Izuku. He rustles his hair often, laughed with him, gave him "manly hugs" with many a back slap.

It was after one particular manly hug that Kirishima notices Katsuki's narrow-eyed stare, as Izuku wandered off to his nerds.

"What's up?" Kirishima says, sharp teeth beaming, and Katsuki chooses the path that was not violence.

"If he smells like you, he doesn't smell like me." Katsuki tells him. His eyes are still narrowed, contemplating, and Kirishima feels a ghost walk over his grave. Shit, had he? He had been cuddling Katsuki's omega, right there in public (not really approaching the fact that the two of them had never actually come out as together or anything, it was rather obvious).

"Uh, sorry dude, I won't do it again?" Kirishima rushes to reply but is halted by Katsuki's mouth puckering in his nope-don't-like-that pout. Should he be concerned that he can read Bakubro's moods with the shape of his mouth? Was that weird?

For his part, Katsuki was evaluating Kirishima from head to toe.

"If he doesn't smell like me, he smells like you, got it?" He decides finally, red eyes glaring into Kirishima's.

"Uh, what?" He says, baffled.

"Got it?!" Katsuki raises his chin a bit the way he does when they're being especially thick-headed and he needs to proclaim dominance. It works to quiet Kaminari and Kirishima when they're being a bit dumb, but Mina usually just blows her gum up at him and Sero rolls his eyes good-naturedly. Nothing rattles Mina or Sero.

If Izuku doesn't smell like Katsuki, he smells like Kirishima…oh, like a pack kind of thing?

Oh, holy shit, Katsuki thought Kirishima was pack. Was picking him as pack beta for that matter! Holy shit!

His eyes light up, but Katsuki is grimacing at him before he even starts stuttering a reply. He's slouching off, hands in his pockets.

"Just do it, Shitty Hair, and don't make me ask ever again."

"Yeah, no worries, bro!" Kirishima beams at his back, he pumps his arm. "I'll take care of your omega when you're not around, you got it! I promise!" He's grinning with all his teeth, catching the rest of their attention.

"Kirishima-kun?" Izuku asks, blinking at him.

"Not to worry little buddy!" Kirishima cheers, chuffing him with his chin as best he can without scent marking glands. Izuku submits with a bewildered expression, but it doesn't stop Kirishima's enthusiasm. (He's lucky Izuku trusts him, otherwise Izuku might have just snapped off his nose).

"Really?" Todoroki intones, sighing. It took a while to read him, with his face regularly mimicking stone, but he's a chill guy.

"Really, really!" Kirishima is still grinning, and he runs off to shove his new pack position in Kaminari, Mina, and Sero's face. Take that.

Left behind with his friends, Izuku just gives them a baffled look and they dissolve into laughter. Jokes fly freely about being adopted, becoming one of the 'bakusquad', and joining a cult to 'Kacchan'. Izuku just laughs, waving his hands, flushing bright red (and if anyone had started a cult to Kacchan, it was him, thanks). He can't help but smiling at his page though, even when Uraraka notices and pushes her pencil into the apple of his chubby cheek.

Todoroki joins Izuku when he starts gathering up his things to head to bed.

"You would tell me, if something was wrong?" Todoroki says, and it's awkward and shy and stilted the way his default seems to be.

"What? Of course. Nothing's wrong." Izuku looks at him, taking in the stiff back, the forward face. "I promise, Todoroki-kun. I would say something, or it would be obvious. I'm not very good at lying." His half shrug is honest, and it seems to take a lot of Todoroki's stiffness away.

"That is true." He says, and they're at the elevator. There's something he wants to say, that much Izuku can tell. He waits, as they exit the elevator at their floor. Only a room away, Todoroki-kun pauses at Izuku's door.

"You are well-treated?" Discomfort crosses his face. That's not what he wanted to say. "That is, you are treated…well?"

Izuku is smiling, and he reaches out a hand. Patting Todoroki's shoulder, because that was the most the other was comfortable with physically, Izuku feels lucky to have such good friends that would look out for his interest like this.

"Yes. Trust me, he does. I am. It's hard to describe…" His eyes grow distant, but a charmed, helpless, romantic smile steals over his face. Todoroki nearly gains hives from it. "Kacchan has done and does so much work to be where he is now, and I…I guess I do my best to match him. I didn't like it sometimes, but it's made everything better. I can only recommend therapy. And even then…time. It takes time."

"I see." Todoroki answers, and he nods in acquiescence. A sly look crosses his miss-matched eyes. "The sex probably helps."

"Yeah." Izuku sighs gustily, eyes going dazed.

Todoroki rolls his, and abandons Izuku there, raising eyebrows when the omega comes back to earth and flushes at the response he just gave.

"I'm glad you're happy." Todoroki said, halfway into his dorm room. "I just wish it wasn't so loud in the middle of the day."

And then he snaps his door shut against Izuku's embarrassed sputtering.

Sixteen

Chapter Summary

The provisional test. A full year ahead of the rest, Class 1-A was battle tested, and they could taste victory. Katsuki was ready to kick fucking ass.

Chapter Notes

getting real close to the end here folks, I hope you like it!

The provisional test. A full year ahead of the rest, Class 1-A was battle tested, and they could taste victory. Katsuki was ready to kick fucking ass.

Especially that tall black-haired asshole who had looked Deku up and down and cooed. "What a cute little omega you are." Fucker didn't get it, but Izuku would make him understand. Yeah, Katsuki's omega is cute. Of course, he fucking is.

But he still can and will kick the ever-loving shit out of you, and Katsuki was looking forward to hearing about it. Deku would fold that motherfucker so fast. Even imagining it was doing Katsuki wonders. Clears his skin, waters his crops. (Fuck, Dunce Face and Pinky were infecting him with their 'meme' bullshit).

He wandered off to work by himself with the idiots in tow, ready to make his mark. Explosions weren't the best for team fighting, anyway, not when the class still hadn't figured out how to stay out of his way.

Shit didn't turn out how he wanted though. It never does.

Shitty Hair (Kirishima he should give it a try…the dude had turned into a human potato for him) awkwardly defends his position from the idiots when they get their forms back. Which is a good thing, it probably saves his neck. Their necks.

Katsuki wants to rage. He wants to scream, yell, hit out at the ones who passed (their entire class, Deku). It would be easy, because the anger would feel better if it wasn't directed at himself.

But…it would feel like a temper tantrum. Right now, in front of all these other schools. He'd get angry later. He'd work harder than fucking anyone, get the provincial license as soon as he fucking could. His bedside manner was lacking, the sheet says. Civilians under threat needed to trust him and yelling at them was not the way to do it.

Jeanist had said it before, and Katsuki hated the memory of his suave fucking voice.

That evening, Izuku proves he doesn't have any sense of self-preservation and knocks on his door.

Hauled inside in an instant, Izuku remains still against the door where Katsuki presses him, nose in his neck and shivering with the alpha's arms up over his head. Oh, Katsuki is still taller than him. Still had huge shoulders, too.

"Bed." Katsuki rasps, the weight and disappointment of the day curling in his mouth to come out hurtful and rough. Despite knowing he doesn't mean it cruelly, Izuku makes a small little nervous sound, his scent wilts, it hearkens back to their early days following his bloom. A time which now felt so long ago. Katsuki stills in his movements, putting his forehead to the back of Izuku's neck and shakily lets out a breath.

"Sorry." His hands twitch on Izuku's hips. "I can go." It's his bedroom, but he'll go sleep on the roof if Izuku asked him to right now.

"No, don't go." Izuku soothes, turning, his own knobby hands sliding up strong arms and around strong shoulders. After a brief hesitation, he telegraphs his movements and circles his hands behind Katsuki's neck. The alpha shudders, just slightly, wondering when he would ever get rid of that particular trigger (that ugly fucker, dragging him back by his neck, shoving his disgusting dominance all over Katsuki), but eventually swallows. Izuku purrs slightly, kissing his cheeks, under his eyes. "Don't go anywhere Kacchan, I'm here. I'm here for you, alpha. You have me."

Katsuki, eyes closed and spellbound by the kisses being pressed over his lids, mumbles something back but he doesn't know what. He does know that it makes Izuku sigh into his arms, slack and malleable now, and Katsuki takes it as permission. He's more careful though, less forceful, less mean.

Katsuki pushes Izuku flat beneath him, breathing out through his mouth. Even the motion of tucking Izuku underneath himself calmed the more restless corners of Katsuki's mind. The omega makes a happy noise, and that soothes him further.

They grind together, Izuku's arms up around Katsuki's head, moaning into his mouth. They lick at one another, until Katsuki has another itch he needs to scratch.

He turns Izuku onto his stomach, nudging carefully with his nose to make sure Izuku wanted to, and is gifted with a purr and a sweet nuzzle, even as the little slut arches his back.

He's got a mouthful of neck, right where Izuku's shoulder met the column, the sensitive spot, inches away from his gland. His teeth scrape, and Izuku cries out.

Huffing in hair, Katsuki loses his sight for a moment, he's grinding his cock into the swells of Izuku's ass cheeks, pinning him with his weight and the hold of his teeth, seconds away. He could bite down. Make his mark. He could taste blood, keep Izuku pinned as he fucked him, knotted him, breaking through the condom to leave come inside and claim--fuck--

He's too into it.

Groaning, Katsuki forces his teeth apart and turns his face away, slowly, going slowly, fighting against whatever weird fucking instinct that was in order to put his face in the pillow next to Izuku's head. Laying his full weight on Izuku, because if the nerd can't survive it, he's not strong enough anyways, Katsuki carefully counts his way to ten, ignoring the almost angry pulsing in his cock, in his spine, at the back of his mind. Shut up, alpha. Katsuki's in control here, not you.

"Sorry." He grunts again, against the fabric, forcing his nose down flat so he can't smell anything. He can't really breathe, either. Still beneath him, blinking in the cradle of Katsuki's large biceped arms, Izuku hums.

"That's okay." He says, but its confused. A bit overwhelmed, maybe. Not nearly alarmed enough.

"Are you dumb?" Katsuki lifts his face to glower down at him. And Izuku just give shim an awkward, pinned shrug. "I nearly just marked your stupid ass. That. That could have been a claim."

"Oh." Izuku contemplates this, like he hadn't realized. Did Katsuki have to do all the thinking around here? Fucking hell. "That wouldn't be too bad."

"No, you idiot." Katsuki says slowly. "That would be bad. We're still first years. A claim is like biological marriage. I just thought of coming in you. Bareback."

"Well, almost second years." Izuku muses. "After that it's just two years of school, then we'll be pro heroes." He's got his reasonable voice on. And he's being more than generous with his 'reasonable' expectations, what the fuck.

"Uh..." Katsuki is struck speechless, even as Izuku wriggles enough to lean his head on his bicep and happily stare up at Katsuki, unbothered by being squashed into the mattress. It's a weird feeling to be entirely larger and dominant over Izuku, physically even, but feel like the omega had him by the scruff of his neck.

"Not sure about the breeding thing yet," Izuku tells him, serious and earnest, "I'm not ready for a pup, and won't be for a while. Pro hero work would be very hard to raise someone during, you know? Mum had me when she was only twenty, and even that seems young. I don't know. Maybe I won't ever be ready for a baby. Is that okay with you?" Izuku asks him, but Katsuki's brain was kind of still worrying like a dog with a bone over the word 'breeding'.

"Huh?" He blinks. "What? Pups? Fuck, I don't know. Not now." There's a faint sense of alarm ringing in the back of his head.

"Yeah, you're right." Izuku says like what Katsuki just said made complete sense. He wriggles, hips shaking absently, rubbing sweetly against Katsuki's own crotch, waking his cock back up from its slow chub. Izuku bucks sharply, strong torso lifting Katsuki right up off the bed and then lets him fall back down with an oof and a naughty little smile.

"Deku, you…" Katsuki chokes.

"Come on, Kacchan. Breed me, alpha." He teases, and woah, Katsuki's cock rockets back to life.

"That's dangerous, you fucker," he warns, licking across a freckled cheek and awkwardly tugging clothing off them both without stopping his wet kisses. He nibbles (just a nibble) against Izuku's ear and neck, licking and sucking his scent gland and slipping his hard cock between Izuku's cheeks.

He rocks, fucking between them, urging slick to make the slide wetter. His knot doesn't swell without the clutch, but again, they're playing around with the word breeding. That really flicked a few of Katsuki's biological switches. Izuku lets his head fall back, cupped by Katsuki's strong hand over his front, and moans throatily.

There's a knock against the wall Katsuki shares with Arms. Katsuki stopes moving. Then another two knocks. Then one.

Shouji. Politely letting them know he can hear them.

Katsuki deflates.

He rolls off, tugging his clothes back into place, half-heartedly helping Izuku back into his. They lie side by side in silence for a few minutes.

"So, no sex?" Izuku asks, disappointed.

"No sex." Katsuki grumbles, glaring at the ceiling, as his cock sputters weakly at the denial. What a shit day. He failed the provisional license. Scared his omega. Nearly claimed his omega. And he didn't even get to smash said sexy little omega boyfriend who very clearly wanted to be smashed. By him. And his alpha cock.

A beat of silence.

"Shit." Izuku pouts, and Katsuki snorts into ugly laughter.

.

Look at this image of our cute little Izuku! I love it, so cute! Thank you Rosebadwolf1000 (@ErWeAreAdult on Twitter)

Seventeen

Chapter Summary

Izuku goes to internships with All Might's old sidekick Nighteye.

Lots of shit seems to happen.

Chapter Notes

here be some smut ~

See the end of the chapter for more notes

Katsuki's not around to meet Mirio, without his license he's not allowed. It's bullshit in his opinion, he's not about to fuck up like that again. Whatever, he's left out of the training they have with the so called "big three", as is Todoroki he's told by an enthusiastic Izuku later (that's a benefit to having a wordy as fuck omega, he gets all the information he needs), who sits out entirely.

Apparently, meeting Mirio is like meeting All Might as a teenager. He's powerful, strong, and Izuku can tell that every single ability Togata-senpai has, he has it because he worked hard for it! The Big Three.

So cool!

When he's gushing about it to Katsuki later that night, as the blonde did his homework at his desk and Izuku ignored his in favor of discussing permeation with himself, Izuku notices a growing stench.

It's Katsuki.

Now, Izuku is normally pretty oblivious. This is true. But not about Kacchan. Not ever about Kacchan.

That smelled like jealousy. A jealous Kacchan meant a Kacchan who felt inferior.

That wouldn't do.

Purring with a bit of amusement and a lot of love, Izuku clambers off the bed and into Katsuki's lap, ignoring his protests and faux snarls. He kisses both cheeks, hugs him tight around the shoulders, and presses his best smile into Katsuki's chin.

"Kacchan." He whispers. "You're still the best."

"Shut the fuck up, I know." Katsuki bites back. He hasn't dumped Izuku on his ass yet, so that was a good sign. He hadn't yet touched him though, arms stiff and fist holding his pencil in a death grip.

"No, you don't." Izuku brushes their lips together and then leans back. While his intentions aren't sexual, he can't help his healthy interest in the fact that he was in Kacchan's lap, again, holy shit. "You are the best alpha I know. The best. Do you know why?" He doesn't wait for a response, loving how despite Katsuki's sour grimace, his red eyes are fixed on his own and his ears were steadily turning pink. "Because you're my alpha. And I love you." It was too easy to say. Far too easy. But he's not going to take it back.

It's not like it's a new discovery. Both of them knew they were in love, but it's never been spoken aloud. It didn't need to be. But Izuku wanted it to, it seems, as he waits breathlessly, he wants to make it normal. Wants to shout his love, wear it, say it over and over.

Hanging on pins and needles, across Katsuki's thighs, Izuku watches a complex array of emotions flicker over his face. Everything in him melts when Katsuki does, the jealousy in his scent bleeds out to be replaced with something softer (soft, Kacchan was being soft, look at his face!). His hips are grasped, and Katsuki is rubbing their scent glands together.

Shivering on top of him, Izuku gasps into his alpha's ear as Katsuki licks the lobe into his mouth. Then he's whispering, like the world was trying to listen in and Katsuki didn't want it to hear him.

"Your bloom was the best thing to happen to me." Said low, and serious, it settles into Izuku's bones. Katsuki mockingly gags, biting into his freckled cheek to make him squeak, but its friendly and relaxed. There's a nuzzle of his pointy nose, and then Izuku is being urged to hold him tighter, his chin hooking over his shoulder, and Katsuki gets back to his homework with Izuku in his arms, comfortable and safe.

Head resting against a strong, bulky shoulder, Izuku lets his eyes squeeze out a few happy tears, beaming into the skin and kissing it every now and then. Everything was right in the world. Katsuki had gone against his normal reserved nature to give Izuku something back. His heart was full.

This would become his favorite way to cuddle, he thinks, as Katsuki rustles paper behind him but makes sure he isn't disturbed.

(He's going to keep his new desire to be naked and stuffed full in this exact position to himself for a few days…well, maybe until tomorrow).

Or maybe he could slide under Katsuki's desk and uh…well.

He is a healthy teenager.

.

.

Izuku goes to internships with All Might's old sidekick Nighteye.

Lots of shit seems to happen.

Katsuki watches him leave with a bright glint of fanboy energy in his eye (with that pin-eyed fucker, Mirio), and watches him come back with a shadow over his face. Nighteye was demanding, he was harsh and cold and stern. He didn't think Izuku was good enough to be All Might's successor. There was a little girl. A crime organization (the fucking yakuza?). A mission. Shitty Hair and Cheeks were both involved. Deku was involved. So was Toga, Twice, and everyone had to fight for their lives. Overhaul, the fucking leader of the yakuza. The fight above the neighborhood, at 100%, body degrading at the same pace the little girl was reversing it, and somehow he comes out of it with zero injuries.

Izuku, isn't in the hospital. Well, he is, apparently, but not for his own injuries. That's some kind of fucking miracle quirk.

"It was really amazing, Kacchan," he says over the phone and three cities away, enthused and happy and sad all at once. Katsuki's head hurt trying to comprehend someone feeling so much at one time. "Eri-chan's quirk is so powerful. I was at a full 100%, my body was breaking down at the same pace her quirk was reversing it. Just incredible."

"You're good though?" Katsuki asks, suspicious. That does sound fucking ridiculous.

"Yes, I am, I promise." A beat of silence. "Sir isn't…doing so well."

Katsuki doesn't have anything to say to that, so all he does is rumble, weak and pitiful and stupid through the phone, but it's all he can do.

"Anyways, I'll see you soon, Kacchan. Love you." Izuku says to him, and he can feel more than hear the soft smile.

"You too." Katsuki answers, and they hang up. That night, Katsuki makes katsudon for dinner and eats it with irritation – the hell did he want it for, Deku wasn't even around to sparkle at him in praise. Icyhot eventually troops in and eats his cold soba, placidly ignoring Katsuki's grumbling and snarls from the other side of the dining table. Katsuki truly, madly, deeply hates being behind everyone.

So, Izuku comes back after it all with a new darkness in his eyes. A new weight to his shoulders.

It would be enough to set him off, if there wasn't a matching determined set to them.

They discuss the heavy bits, Katsuki tells him about the kids that he'd corralled for his own supplementary exam, and together they get some sleep curled tightly around one another. When Katsuki wakes at his normal hour, he lets Izuku continue to dream.

When Izuku wakes, they get breakfast. They enjoy the day off. Eventually, they return again to Katsuki's room to hide away from the chaos and mess of dorm life, and Katsuki gets a head start on his Calculus. Izuku starts talking about quirks, about Eri's quirk and Aizawa's quirk, and Overhaul's quirk, and it gets technical very quickly. Then he's steadily describing every single hero he worked with on the mission, down to the last tiny detail.

That's about where Katsuki zones out.

What? If he listened to every single hero-worshipping word that drips from Izuku's pouty little mouth, Katsuki would have no time to even think.

He's barely engaging, writing out his Calculus assignment at his desk while Izuku rolled about in Katsuki's bed. He didn't really mind; it just meant more omega scent. If he fucks up his fitted sheet one more time though, ass cheeks are getting spanked.

"Kacchan, are you listening?" Izuku asks, and it's a break in the information stream so Katsuki picks up on it. "You've been making the same noise every time I stop."

To fuck with him, Katsuki makes the noise again, firming up his face so he doesn't smirk or anything. He continues finishing his assignment, doublechecking the math, narrowing his eyes when the formula doesn't look right there. Izuku's quiet, so maybe he's gonna do his own homework he's been ignoring.

Instead, Izuku just…crawls under his desk.

Immediately on edge, Katsuki sits ramrod straight and tries not to flinch when he feels naughty hands start drawing little designs up and down the inside of his thighs, following his pant seam. All thoughts of math vacate Katsuki's brain.

"The fuck you up to, Deku?" He asks, but he's got a good idea. The anticipation turns his voice a little lilted, teasing.

"Hmm, I had an idea, Kacchan." Izuku damn near purrs from between his knees (holy shit, holy shit, holy shit), "I wanted to um, lick you from down here." See, Izuku gets embarrassed by conventional dirty talk, saying the words "I'm going to suck you off" is just too embarrassing for him. So, he draws out shit like this, "I want to lick you" like that's not so much fucking hotter than anything Katsuki's ever heard in his life.

"Did you?" Katsuki replies, trying to seem aloof to the idea. He fails. "Are you up to it?" He did have a rough day and week.

"Yeah." Izuku smiles up at him, pressing that sweet innocent face close to where he was already getting hard. Scarred hands tug and pull, and shit, Katsuki's easy.

He licks around him. He sucks the head. He plays with the base, touches the balls, draws back to look at him like he's a fucking specimen under a microscope, and Katsuki can't take it. He falls against his chair, head dropping backwards, staring without seeing at the ceiling. Deku could do anything to him. Anything.

And what he does is press an obscenely sweet close-mouthed kiss to his tip, before opening wide and taking him deep. Katsuki's hair stands on end, and he puts a hand, blindly, to Izuku's neck and jaw, following the motion, feeling the muscles flex.

"Kacchan," Izuku pops off to breath, asking him to, "would you, f-fu, my uh, mouth? Move for me? I want you to take it."

"Take it?" Katsuki hisses, drawing his head up to look down at him, animalistic. "You want me to fuck your mouth, baby, my slut wants to get face fucked like a whore?"

"Y-yeah," Izuku gasps, eyes wide and disbelieving, staring up at Katsuki like he's a god, licking around his head like it's an afterthought and good fucking gods above, Katsuki's not about to deny him.

"Break my leg or something if you want to stop," Katsuki tells him, absent, all the blood in his brain working to get him to stand up, hunching a bit too awkwardly, hands delving into green hair and guiding that hot mouth back, let him take him in, and ohh….

Fuck. He starts slowly, watching every little bit drag in and out, shiny and wet from Izuku's spit. Eyes falling closed, Izuku is both focused and blissed out, merely holding onto Katsuki's hips and letting him take over all the movement.

It's like he's fucking his hole, but there's a tongue, and Izuku has to somehow breathe around his cock, and wow, wow, wow.

Katsuki's leaning forward like a bowing tree, hips moving but unable to remain upright. He meets the desk, eyes shut closed because the very image of Izuku on his knees, under his desk, mouth open and supplicant was just—

Fuck,fuck,fuck,fuck,

Forehead to desk, Katsuki is leaning entirely on his chest, ass out of his seat, hands buried in green hair, hips thrusting wildly. He's entirely boiled down to the feeling of Izuku's mouth, of his tongue pressed flat on the underside of his cock, of the motion that drags him in and out, of the sound of Izuku struggling to breathe, the feeling of his desperate hand gripping tight to Katsuki's hips and ass. He's strong enough to crush cement, he's strong enough to push Katsuki off. Instead, he's letting Katsuki just…fuck his mouth.

Gasping against the wood, Katsuki groans as Izuku does, garbled and wet sounding and oh fuck, he bets Izuku looks a mess right now. Beneath him, under the desk.

Crawled under the desk to suck him off, like a slut. Asked him to move, to take over, to use him like this?

"My beautiful slut, Zuku, baby, fucking hell, that's so…" Katsuki hisses, fucking a bit too hard, dragging Izuku up and off to lick at and moan around the head of his cock to give him a chance to breathe. It also let Katsuki's swimming head gather itself. His chest aches from the weight of his body pressing on the edge and surface of the desk, but fuck, the way Izuku was licking at him, long, wet, messy strokes now, it was too good to change positions. Besides, he was…he was going to…

"Gonna come like this…" He heaves out, rubbing his thumbs into Izuku's hair, gripping him tight, hips fucking.

"Mwhhff." Izuku says something around his cock, but all it does is vibrate around him and Katsuki moans, shuddering, hips fucking too hard and coming harder, bursting, shooting into Izuku's mouth who nearly fucking gargles, choking, fuck, he's choking, too hard, that was a gag, fuck, fuck--

His limbs have stopped working. Katsuki collapses back, still spurting, missing his chair so he lands with a harsh thud in front of Izuku.

Izuku, who was panting, hard, mouth red and abused, eyes wet and watering, tongue out, licking his own lips, huffing in air and looking utterly drugged. Hair a mess, he pawed at Katsuki's pant legs, bunched around his knees, and the scent of him, gathered close and tight here under the desk, smells like a rainforest, thick and humid. He's not just a mess, he's nearly brutalized. The scent though, wasn't alarmed, his omega smell was so fucking satiated, Katsuki had to blink multiple times to get his head out of it.

"Deku," Katsuki gasps, hands coming up to cradle his cheeks, wipe at the saliva all down his chin, "sorry, sorry that was too hard, I'm sorry."

"I said please, Kacchan," Izuku said, and his voice was raspy and wrecked, but he's...he's smiling? "I wanted you to come in my mouth," he licks his lips, wiping at his face, where some extra spurt had caught him. There's come kind of all down his front, actually, spots of white and wetness on his chest and legs. "And you did. Thank you, Kacchan, hmmm, yeah, that was…." He's dazed, eyes drifting closed to blink slowly.

Katsuki looks, and there's a wet spot at his crotch, and at the seat of his pants.

"Did you," he says, heart still pounding down from that utterly stellar orgasm, breathing sharply, "Did you come?!" Did he come from sucking him off? From getting his face fucked?!

"Mhmm!" Izuku's smile is wobbly and wide, and he's crawling forward, legs akimbo, kind of like when he'd bloomed actually. His pants were wet where they touch Katsuki's leg, and he realizes he's sitting bare assed on his own floor, cock out and pulsing, with Izuku in his lap kissing him wetly, covered in jizz and slick and spit and ugh…

Thank all the planners of UA for putting a half bath in every student's room. Sex felt good, but it was gross.

Izuku's loving, gentle smile and warm kiss to his jaw was grosser. (No, it wasn't).

Chapter End Notes

the penultimate! I just got one more to go folks 3

Eighteen

Chapter Summary

After the mess with Overhaul is over with, shit…doesn't happen. There's no shit.

Katsuki's suspicious.

Chapter Notes

See the end of the chapter for notes

After the mess with Overhaul is over with, shit…doesn't happen. There's no shit.

Katsuki's suspicious.

But he's not about to turn his nose up at being able to actually focus on his studies. He got prodded and pushed into the drums again and had to learn that song Earlobes wrote. It's actually…pretty good.

The morning of the festival, Katsuki wakes up with a warm weight over his back, Izuku's breath tickling his ear, and a hard omega cock pressing against his ass.

Contently half asleep, Katsuki doesn't shift very much, taking in the room and the clock with hooded red eyes. He moves just enough to curl up a bit, and Izuku follows automatically, curling around him like a sweaty human coat. Something is fuzzy in his chest.

The cock presses between his cheeks, and a smirk crawls over his face.

What a way to wake up.

One hand is sent back to capture Izuku's hip, urging him gently into a nice rocking motion, working his cock against Katsuki in an erotic press through their sleep pants. His other arm under his pillow, and hand captured by Izuku's because he was so fucking sweet in his sleep, Katsuki pinpoints the moment Izuku humps into wakefulness.

"Mh, Mna, Kacchan?" He whines, hips stuttering, held prisoner by Katsuki's strong hand.

Katsuki bucks. "Come on nerd," he purrs, rumbling, licking his lips when Izuku shudders. There's a small scent of slick in the air, he'd already started getting wet. "Give it to me good."

"Oh, my…god, Kacchan," Izuku wrapped his arm around his chest, pulling him in, a firm press. He licks up Katsuki's neck, dazed and aroused and falling to pieces, even if Katsuki was the one under his cock this time.

The grin that splits Katsuki's face is unholy.

"So good," Izuku whimpers, fucking against him, and yeah, it really was.

"Wonder how long you'd last if you fucked me…" Katsuki says between low groans. It makes the littler cock at his back twitch, and Izuku dissolves into a moan that is probably too loud for six am. He comes, and Katsuki steals the hand that was pressing at his pec, drawing it down so Izuku could get a palmful of his cock.

Izuku jacks him like that, getting him off, licking and sucking and just slightly pressing his omega teeth against Katsuki's gland. Gutsy, dangerous, and so fucking good Katsuki bucks, swearing, coming hard and drenching Izuku's hand in come.

A hand that the curiously brings itself up to his mouth to taste. A tongue pokes out.

His nose wrinkles.

Staring at him, Katsuki deadpans. He'd tasted his come before, he swallowed it entirely, drank it down, what the fuck was he doing with it now? Katsuki kicks him in the stomach when he offers that disgusting hand to him.

Deku's nearly late to the festival, idiot. He'd gone for rope and come back with leaves and dirt in his hair. Katsuki was onto him. If he wasn't already set up at the drums, he'd be over there shaking the nerd down, asking where he got into a fight. At least it looked like he won.

They come out on top in the festival. Of course they did, how could they not? Fuck yeah they were the best. Class 1-A, extras, suck on that! They were the fucking best.

"You know, Kacchan?" Izuku says as they're walking back to the dorms. Katsuki had stripped himself of the awful orange t-shirt, stuffing it into his beltloop. They're not not holding hands. "I had a lot of fun today. I think Eri-chan did too."

"Of course she fucking did, we rocked." Katsuki grunts, lips pursed. He's not going to say Izuku looked beautiful in this golden light, he's not.

"You know what else, Kacchan?" Izuku says, but this time it's with a familiar tilt to his voice that's already sending blood to Katsuki's cock. His thumb strokes over Katsuki's knuckles. "Watching you play the drums again made me think of something new. I really want to ride you."

Oh, how Katsuki likes it when Izuku 'thinks of something new'.

They have dinner first though, an impromptu party in the dorm, with even Aizawa, Mic, and All Might present.

Class 1-A is made of chaos and ridiculousness and they're all too capable. Katsuki doesn't know why he hangs around these fuckers, but by the time Sero is trying to suck an entire spilled bottle of cranberry juice (non-alcoholic, thank you Aizawa) from the tabletop, Katsuki realizes he's been grinning for a few minutes.

Kirishima nudges him, eyebrows wiggling, and he's pointing out where Izuku is over at the other side of the room. Surrounded by their classmates, Sparkles and Frogger at his elbows, he's still watching Katsuki, eyes on Katsuki, always. He smirks. Deku flushes, immediately glancing away, acting like a virgin and a sweetheart, reconfirming what everyone thought about him and Katsuki and their relationship.

Only Katsuki knows the truth.

And then Izuku was sneaking away, and Katsuki tried to make it seem like he wasn't following. Kirishima catches his eye and winks obnoxiously, to which he only rolls his eyes. Way to give him away, loser. Mina starts singing, loudly, likely trying to cover his retreat. Kaminari joins in, likely unknowing about the ulterior motive, totally ready to sing at the drop of a hat, any song any genre. It makes Jirou start throwing popcorn at him, trying to land it in his mouth. Katsuki hates them…but he also doesn't.

.

.

That night, Katsuki loses himself in Izuku for the hundredth time. All his thoughts, his emotions, his beliefs dissolve into Izuku, Izuku, Izuku.

Hs omega, his. His, only his, bloomed for him. Made, created, his perfect match. The only one for him. How could he have railed against this for so long? How could he have been so wrong? The possessiveness bleeds into the protectiveness, which in itself is fed by the love, the love, the disgusting, overwhelming soul-searching love that he resists simply for the fact that its utterly uncontrollable.

Katsuki presses his tears into Izuku's collarbone, as the other rides him into orgasm. Izuku is swallowing all of him, incredible, overtaking,

It's only, perhaps, his saving grace…that Izuku was so kind. He witnesses Katsuki's destruction, and merely folds him into his arms.

Katsuki would assume he doesn't understand the gravity of what he was doing to him, destroying his alpha from the inside out, all his love drowning Katsuki entirely, head bobbing above water, clutching at thick thighs and a strong back. He would assume so…if not for the way Izuku kissed his eyelids, licking away the salty tears, holding him together with strong, scarred arms.

"Deku…" Katsuki chokes out and is met with Izuku's kiss.

"It's okay Kacchan. It's all for you." Izuku says. He smiles. He licks his way across Katsuki's vulnerable gland. Alpha's eyes roll, he swims though arousal and need and desire. Omega takes hold with teeth and spine and gentleness.

"Mine…" Katsuki gasps, hips bucking. Izuku has him pinned, and it's wrecking all of his instincts. All of the natural things within him were saying roll him, turn him over, do the alpha's job, breed him, but all of Izuku was rolling, taking for himself, riding, alpha's been caught.

"Yours." Izuku purrs, with all the makings of mine,mine,mine in the heat of his hips, of the way he's bouncing over Katsuki's cock like it's his to use.

When he comes, Katsuki knots like the first time, eyes rolling, arching high enough Izuku is lifted from the bed, who gasps out and claws at him, shuddering, sucking him deeper into his body. Green head flings back, the long, lean, strong neck is free, and Katsuki blearily imagines his mark on it. It's only a matter of time. It's only a matter of taking each day and enjoying it. Taking each argument and finding the root of it. Taking each happy, laugh-filled moment and reveling in its existence.

They breathe in the aftermath, overwhelmed and tingly. Satisfaction seeps in. As does contentment.

What the fuck.

Katsuki, laying back in bed sweaty and tired and gross, has a handful of green sweaty hair and his other arm flung out, desperate for some cool air.

"I love you." He says, baffled, to the ceiling.

"I know." Izuku purrs, content and demonic and beautifully omega. "I've known."

.

.

"Hmph. No, you didn't."

"Yeah, Kacchan, I did."

"Fuck you."

"Okay, fuck me."

"Wait…wait, fuc-, hold on--!"

Chapter End Notes

THATS IT MY FRIENDS
THANK YOU VERY VERY MUCH
I HOPE YOU LOVED THEM AS MUCH AS I DO

Afterword

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