Chapter 1: I'm horny and I don't know how to stop!

Midoryia Izuku was cute. That was a fact. Midoryia Izuku was in fact, very, very cute. With soft creamy skin, beautiful round eyes and a small, perfect mouth, he was the very definition of adorable. The fact he had a set of beautiful curved horns, cute pointed teeth and had a tendency to purr only added to his charm. However, at a rather diminutive height of five-foot and five-inches he was more "pretty and feminine" than he was "handsome and manly", something that his male classmates refused to ever stop mocking him about.

Not that it stopped seemingly every woman he had ever met obsessing over him.

Now that was something that he found very, very annoying. You see, regardless of his minor dragon quirk, Midoryia Izuku is fundamentally a shy boy. One who prefers sitting down and reading a book, than the terrifying idea of meeting new people or having to talk to strangers.

So when he walked into the classroom on the first day of class and was greeted with feminine gasps and lustful stares, he found himself stuttering at every interaction. Something that, unfortunately for the boy, only made him more alluring to his already captivated female audience.

Most everyone had assumed him to be weak at first due to his cute, beautiful figure. But he quickly proved them wrong. Due to his minor dragon quirk he had cleared the beach early, allowing him to receive One for All months early. His studious nature and naturally tough body had allowed him to unlock Full Cowling in mere days. From there he worked his way up, slowly learning to master One for All.

To say the battles with his classmates had been quick was an understatement. Even his childhood bully friend Kacchan had only lasted a single blow. He expected this to change things, to make his classmates afraid of him; or at least not want to pet him until he embarrassingly purred (damn you Mina!).

But, that was not the case. His class's affection for him only grew. The boys wanted to challenge his strength, and the girls… Well, what they wanted with him was best left unsaid. But over the time he had spent at UA, he had grown to love his class. Except Mineta.

But, that had been his first year. Now, he was in his third and final year, and had finally turned 18 along with the rest of the class. In his three years he had already become world famous after his battle against Shigaraki, their immense power destroying an entire mountain range during the battle. His mastery of One for All had finally reached beyond "100%" power, tapping into strength exceeding that of even All might. Many believed him to be the strongest man on earth.

And also, the most attractive. No, seriously! The moment he turned 18 he won a Japan wide poll for "most attractive hero" even though he wasn't even officially a hero yet! In fact, he won multiple polls! Midnight had personally come to the dorms to complain and rant at him for several minutes, before apologising and stumbling out the door while half drunk. He didn't even want people to vote for him, he didn't want to be called "pretty" and he didn't want to be cooed at constantly!

It never ceased to surprise him that he had managed to win such a poll over his classmates. To say that his female classmates had grown up would be an understatement. As loathsome as he was to think of his classmates in such a lecherous manner, his classmates had become something akin to fertility goddesses in their time at UA. The puberty sledgehammer had certainly taken a few extra swings on the girls, except for poor Jirou. Who seemed more and more distraught by the day.

Sorry Jirou.

But, those were thoughts for another time. It was near the end of the year. Winter had struck and was in peak swing, meaning crime was on the down low. He had already finished up his studies for the year (the last exam on protecting civilians had been tough!) and was more or less waiting until he could open his own hero agency.

Aizawa had taken those who had failed the last exam and dragged them to a remedial class on "Learning to be less damn dangerous around civilians!" due to their apparent tendencies towards "Excessive force!". Curiously, only the males of the class had failed, except for him of course. This left him alone in the Heights Alliance dormitories with the rest of his… female audience.

All of which were more than a little attracted to him.

That would have been fine. If it were not for it being winter.

He was going into heat.

Shit.

You see, Midoryia Izuku's quirk "Dragon" gave him some minor draconic features. Two horns, pointed teeth, some animalistic instincts (don't get between him and a meal) and some pointy nails he had to file down sometimes. It also made him tougher and stronger than normal, which combined with One for All was great!

But you see, that wasn't the problem. Every winter for a period of two-to-three weeks, he would go into a brutal heat. In the past he had simply locked himself in his room with some specific medication and simply worked out the heat until he was able to control himself. Midnight had been appointed by the school to "counsel" him through it, providing him with embarrassing amounts of "advice" on how best to stimulate himself.

He had taught himself to cum without using his hands in under a week.

So when Aizawa took the failed students away one monday morning, he thought it would be alright. He took his pills and sat in his room, waiting for the inevitable. He lounged about on his phone and imagined himself beating up villains or finally getting the attention from All might that he deserved.

Today would be a good day.

--

Izuku POV

Wait, what makes rabbits different from hares anyway? Is it that hares are bigger than rabbits? Does that make me a different species from the rest of mankind, considering I'm apparently "so cute and tiny!" according to everyone else?

Goddammit, I wish I was tall. And handsome. Anything but "cute" really. I despise that word now.

I stumble as it hits me. Heat unlike anything I had ever felt. What was going on? My breath comes in heavy. My heart is pounding in my little ribcage like a drum. I fall to the ground and groan as burning pain wracks my body. What the hell is going on?

Oh no. One for All boosts the power of my quirk. I had finally gone from 50% to 100% power this year, did that include boosting the heat aspect? "Shit shit shit." I rasp out between shudders. This is very, very bad.

Slamming the door open I sprint out into the living room past the girls- who were apparently having "movie morning" as Mina-

That's not important Izuku! I slam open the top shelf that held the various medications the class members were allotted, and rifled through for the bag labelled "Midoriya". You see, part of the Heights Alliance rules dictated that medication must be kept in one location for security purposes-

There it was, a little brown bag. I damn near tear open the pill container as I frantically swallow down twice the recommended amount, the maximum dosage I could take safely. Then, I wait.

Tick, tock. Tick, tock. Tick, tock.

Nothing. Nothing at all. I freeze. I can still feel the burning LUST inside of me, demanding that I hunt down the nearest female and copulate with them. My heart is beating so hard inside of my chest I felt like I might pass out from the adrenaline alone.

"No no no not now not now…" I whisper out as my body shudders involuntarily. I hear footsteps on tile. "Um, Midoriya… are you alright?" I hear Mina's voice call out from behind me. Shit. This is bad.

"I'm j-j-just fine Mina, I j-just need to get back to my-'' I gasp as a sudden pain and muscle spasm drops me to the floor. A wave of pain and DESIRE rushes through me as I recall just how thick and fertile Mina's body is. I hear Mina's footsteps draw nearer. "NO!" I scream out, mere seconds before she reaches me. "K-KEEP B-BACK!" I push myself into a corner and curl up into a ball. My whole body is furiously shaking now, random spasms racking my form.

"Midoriya, what's wrong? What can I do to help you?" She cries out in a worried voice as yet more footsteps hit the kitchen tiles. Shit, what do I do? I briefly considered lying about "being fine" until a pain arcs through me that makes my balls feel like they're on fire.

Shit, now is not the time to lie. "F-FUCK! It's winter and I'm in heat, and my pills aren't w-working… probably because my q-quirk has gotten way s-stronger since last year!" I manage to shudder out between breaths. I hear gasps behind me but I ignore them.

"Y-you have to get away, I d-don't know how m-much l-longer I can control myself!" I groan as pain arches my spine without my consent. I feel a hand on my back and freeze. "Are you in pain, Midoriya?" Mina asks slowly.

I can't breathe. I can't focus. The hand was on me… but I have to control myself. Yeah, control. I can do this. I can control myself. "I-It hurts… b-but you need to g-go… please…" I hear Mina stand and walk back to the group, leaving my pitiful form on the floor moaning. I hear whispers in the background as I try to focus every fibre of my being into staying in the corner and not ravishing their supple bodies.

Then, the worst possible thing happens. The footsteps return. I feel a soft hand brush my cheek, wiping the tears dripping from my closed eyes. "It's okay Midoriya… we won't let you suffer like this." I feel like crying. Oh wait, I am. "P-please… leave… I don't want to- to…" I feel a hand gently pry my face from my knees.

Her hands are so soft… "Open your eyes Midoriya." I couldn't help it anymore. I open them. I see Mina's face, a soft, caring expression dawning her features. Behind her I see the rest of the girls watching with care and concern. Then, I look down, below her face.

I rocket to my feet and slam her against the wall. I growl as I reach out and attempt to grope at her breasts in a panicked frenzy. My body shakes as my arms spasm, too out of control to complete even the simplest actions. My desperate attempts to strip her of her clothes looks more akin to a panic attack than an actual motion. I knead at her chest like a kitten would a pillow.

I feel her giggle, although I'm too short to actually see her face. Damn, how come she gets to be 5'9? "Wow Midoriya, you really are a little pent up aren't you?" I try my best to give an aggressive growl, but with my diminutive height and figure it came out more as mewling whimper. A pair of gentle hands come up behind him and carefully curl under my back, lifting me from the floor. "How about we take him to the living room? He will be a lot more comfortable there." I vaguely hear Momo say, the words feeling muffled and distant.

I curl into her body as I'm taken across the kitchen to the living room. She's so much taller than me. I must look tiny in her hands. I'm forced to let go as she sets me on the couch, a curious look on her face. "How are you holding up Midoriya? Does the pain seem to have stopped?" I try to speak but all that comes out are angry pants and horny moans.

Mina hums to herself, deep in thought. "In his current state I'm not sure he's capable of talking, I think this is a lot more severe than we first thought." She places a hand against my head for emphasis. "He's burning up, at this rate he'll get a fever if we don't calm him down." That got exclamations of concern from the group. After a few seconds of deliberation they seem to reach a conclusion.

I feel Uraraka settle down on the couch next to me, her broad hips and powerful thighs taking up twice the space I did. In the background I see Momo on her phone, talking to the others about something. After several seconds she produces a small jar of what looks suspiciously like petroleum jelly and hands it to Uraraka. "My research says this will act as a pleasant lubrication for him, you should be able to get him to ejaculate by using your hands." She says, a proud look crossing her face as Momo pridefully recites her research. Damn. What a nerd.

I watch with rapt attention as Uraraka fiddles with my belt buckle. Please. Please. Please. After several seconds of struggling she seems to finally figure it out. "Ah, here we go-" My penis flops forth from its constraints as she yanks my pants down in one swift movement.

"HOLY SHIT!" "WHAT THE HELL" "Oh my god…" "Woah. Ribbit."

I hear shocked gasps from around me as my member pulsates in the open air, slapped against my stomach as it twitches back and forth. Uraraka in particular seemed more terrified of it than aroused. At just over twelve-inches long, and impressively thick, my member is anything but normal. It's monstrous proportions were further accented by the large, heavy testicles that swung loose underneath. For several seconds the room was silent aside from my own agitated breathing.

Uraraka spoke first. "U-ummm, alright… Okay… I can handle this, yeah…" She psyches herself up with a gulp, placing a healthy dollop of petroleum jelly into her palm. No one has said a word since the reveal. She reaches down as the room watches in anticipation, her palm approaching my monster cock at a steady pace.

Then, she makes the connection. I gasp as stars fly in my vision, my whole body arching as her hand slides oh so tantalisingly down my immense length.

Jirou was the second to recover from her shock. "She can't even wrap her hand around it…" She said in an almost confused tone. Momo made a clicking sound with her tongue. "I was not aware it was... possible for males to be so… endowed. At his size It will simply not be possible for him to undergo standard intercourse." She says in a suspiciously upset tone. I hear Hagakure making sad whines and Mina muttering something about her fantasies being ruined.

I, however, was getting tired with this idle chatter and was far more interested in fucking the supple flesh infront of me. Growling, I grab at Uraraka's wrists and yank her forward. "WOAH!" Pulling her into my lap, I try to shove my shuddering length between her fat, nearly head sized tits. "Uh, you are aware my shirt is in the way, right?" She mutters as I proceed to ignore her entirely, choosing to instead thrust at her shirt in frustration.

"Here, let me help you out." Mina says, before smoothly pulling Uraraka's shirt up from over her head in one swoop. I let out what was meant to be an aggressive growl, but judging from the giggles was more of a feminine moan, as her fertility is exposed. A twin pair of heavy slaps rings out as her breasts clap against my boyish hips. "Heh, do you like that, Izuku?" Uraraka says with a delighted expression, slapping the side of a tit with an open palm.

They are huge. Round. Beautiful. Each breast would have been perhaps a little bigger than my head, and probably much heavier. The plump orbs of never-ending fat overflow the base of my cock and rest flat over my hips. Their perfect teardrop shape still mostly retained, her creamy skin somehow holding the abundant tissue in place.

"Damn, go get 'em tiger!" I hear Mina grin as she slaps me on the chest, giving me all the motivation I need. I firmly begin to buck my hips up into Uraraka's chest, fat globules of dense tissue spreading with each thrust. I'm broken out of my concentration when my monstrous cock stabs out from her breasts and jabs the woman above me in the cheek. "Woah there, should have expected that one!~" She laughs out as she tries to reposition herself to have a little less risk of sudden cock-implament.

I spot Mina grabbing a glob of petroleum jelly, before wrapping her hand around my almost too-thick shaft. "Here, let me give you a little more lube." She says before firmly twisting her hands back and forth, lathering jelly on my thickening cock. Even with both hands wrapped around my length, there was still a large portion of my penis left exposed to the air.

Letting go of my twitching member, she gently returns it back within the bounds of Uraraka's monstrous breasts, my slickened shaft gliding within the confines of her chest beautifully. I feel Jirou's hands snake down my torso as she grabs at my shirt. "We should p-probably get him stripped, so he uh, doesn't overheat… y-yeah…" Jirou stammered out, pulling me out of my last remaining clothing with frightening speed.

Uraraka's eyes widen, a beautiful twinkle visible in the morning sunlight. "Woah Izuku, your abs are so beautiful!" She places her slick hands upon either side of her broad breast-span, squishing the two masses together and allowing them to cover a bit more of my cock. "God, I have always loved just how cute you are!" she says with a delightful chirp.

The room is silent apart from Momo's intense note taking and the slap slap slap of what was probably 20 kilograms or more of plump melons crashing against my hips. With each slap I feel my body buck up into her confines of its own accord, several inches of shaft spearing past her tits with each meet of our bodies. After a shift from Uraraka I notice my oversized balls slapping their broadness against the bottom of her beasts, a surprisingly erotic sound ringing forth.

I feel the couch shift as Momo settles beside Uraraka, staring at the glorious tit-fuck occuring a mere arms-length from her. "My research says this should help him ejculate significantly faster…" I hear Momo mutter. Then, she reaches under Uraraka's massive breasts and firmly grips my swinging balls. I freeze as my nuts quiver. My virility twitches inside of Urarka's hands as a glob of precum dribbles out of the tip.

"Woah, he seems to like that, doesn't he?" Uraraka muses out loud. I honestly forgot she was there for a moment, the sheer mass of her tits was just too distracting. Seemingly as confirmation of my pleasure Momo begins to squeeze and toy with the heavy balls in her grip, their sheer size making it difficult for her to grip. The testicle massage is so beautifully relaxing I feel my throat start to vibrate.

"No way…" "Wait, that was real?" "Oh my god he's actually purring…" "S-so cute!"

The girls cooed out behind me as I slapped up against Uraraka's tits. If I was conscious enough to have any self awareness I would have noted how bizarre it was to effectively have a team cheering me on while I tit-fuck their friend. Huh. I grunt as I feel my balls start to tense up, Momo inspecting them with her dexterous fingers in response. "My research says that when his testicles begin to firm up and pulsate, he is nearing ejaculation. You should attempt to maximise his arousal now in order to peak his release." In response Uraraka begins to pump faster and harder against my hips. I let out a high pitched moan (that sounded awfully feminine and resulted in multiple excited squeals) with each slap of her salacious fat bags against my rapidly thickening shaft.

CLAP CLAP CLAP CLAP

"Damn this big-dicked femboy can fuck!" Mina whooped out in delight, leaning in alongside the others to ready themselves for the show. My legs momentarily spasm as my torso goes stiff. My already monstrous manhood adds another inch of length and girth, twitching wildly. I hear Mina clap an open hand against one of Uraraka's vast bubble shaped rump, leaning over the shocked girl's shoulder with a sultry grin. "You ready there princess?" I'm not sure if she noticed, but it gives me a perfect view of the vast valleys of hefty pink femininity hanging within her loose shirt.

Uraraka speaks up. "Eyes on me." She has a beautiful and serene expression awning her features, sparkling eyes and a kind smile on her perfect mouth. I feel my eyes lock against her own as she opens her lips in slow motion.

"Cum for me Izuku." I cum. Momo gives my balls one last squeeze as they pulsate. I cry out as I slam my hips against Uraraka's generous tits, ejculate rushing through my massive dick and past the constraints of the plump masses enveloping them. Thick, heavy ropes land against her face and chest as I continue to pump my hips hurriedly into her body. I vaguely hear the distant sounds of Hagakure and Mina cheering, but I'm too out of focus to notice it. I'm not sure how long my climax lasted, all I know is that at some point everything turns black.