Something didn't sit right with Katsuki bakugo.

At the moment she was currently glaring at the back of izuku as he turned in his test at the front of the class.

Normally the green haired boy was a skittering, nervous mess. Constantly looking around and jumping at the sight of anythi

ng but right now Izuku seemed….different.

He seemed more confident, not that anyone but her could notice. She had spent years watching Izuku, and noticed the small details others didn't. He stood a bit straighter. His clothes less of a mess, his eyes didn't dart around the room every second.

It had started around eight months ago, she had just found out that Izuku had applied to UA, something that enraged her to no end. So she took action, brining his notebook, yelling at him, and eventually telling him to.jumo off the top of the school. Something that she regretted saying the rest of the day until she was captured by a slime villan in broad daylight.

And while she slowly suffocated, surrounded by dozen of pro heroes watching her die, she saw a hair of green rushing at her like a knight in shining armor.

She cursed herself for feeling some heat enter her cheeks as she recalled how surprised she had been at the sight of Izuku and how he had saved her when no one else would. And despite his disheveled appearance how cute he looked holding her on the ground away from the villan. Perhaps that would be the start of the sudden confidence but it still had continued to grow and that has to stop.

She clentched her fist a bit in anger. It had taken her years, hard, painful, years to bring Izuku down and now it was somehow being undone. Izuku had to know his place. Had to know that he was worthless, that he could never be a hero.

She felt her stomach flip inside her in guilt, she hated treating him like this. At one point she had been his closest friend and he was still hers. But she knew you had to have a quirk to be a hero and the thought of stupid self sacrificing Izuku dying because he wanted to be a hero made her heart clentch more than her horrible treatment of him.

He would not be stolen from her.

But now, somehow, that work was being undone. She had to put a stop to it. To keep Izuku safe. She had to do something drastic.

The bell rang and everyone filed out of the class to head home. Izuku let out a deep breath, he was going back to dagaoba beach to continue clearing up the trash with all might. Over all he was excited about the idea, he could notice the changes his body was going through as he got stronger and faster and ultimately, closer to his goal of becoming a hero and inheriting all mights quirk. He was thankful as well that kaachan had been staying away from him since the event with the slime villain. He gathered his things from his locker before entering the boy's locker room to change into his workout clothes.

He was almost always the only one in the locker room after class so when he heard the door close behind him and lock suddenly he was aware something was out of the ordinary. Izuku turned around to come across a sight he'd never expect to see, Katsuki bakugo standing in front of the only exit the boys locker room. He immediately blushed brightly at the embrassing situation despite the scowl his childhood friend on her face.

"K-kaachan?! W-whats are you doing in here?!" Izuku said.

The ash blonde girl stepped forward and Izuku took a step back, she could have smirked at the fact Izuku was still scared of her if it didn't hurt her as so much as well.

" You think I haven't noticed Izuku? You acting like your not some quirkless weakling anymore." Katsuki said taking a step forward, using a tone of voice Izuku was familiar with as very irritated. Would have told her he wasn't but with that tone anything he said was going to piss her off.

" I-im sorry kaachan." Izuku said looking down trying not to draw her heated gaze. She saw his posture shrink down, like prey seeming smaller and less worthy to a predator. She swallowed back sadness realising he thought of her as a threat.

' good, he should, it'll help him realise to quit trying to be a hero' she tried to convince herself.

" You should be. I think you need a reminder of your place." Bakugo said walking towards Izuku. The green haired boy closed his eyes and waited, cursing the fact that kaachan was going to attack him and was wondering why now all of a sudden.

He felt his school shirt torn open with the sounds of buttons hitting the floor and he closed his eyes harder knowing pain was coming any second.

Katsuki however felt her head spinning and her face covered in a thick blush as she stared at izuku's surprisingly sculpted chest and abdominals.

'W-WHAT THE HELL?! When did he get so cut?!' Katsuki thoughts with sweat started to drip down her face. ' j-just gotta keep going. I gotta go through with this…'

She didn't even realise she had reached out to touch Izuku until her hand touched his left pectoral. She heard him wince, likely expecting her to let off a small explosion to burn him. Her eyes raced over her crushes skin and saw small scars from her years of abuse if her friend and felt her throat close up a bit knowing Izuku had every right to expect her to burn him.

Katsuki bent down, putting a hand behind izuku's knee and pushed him over into a bench, he landed with a 'oomph' and opened his eyes on reflex. Katsuki straddled Izuku, pinning his legs to the bench before grabbing hold of his belt. Izukus face went scarlet as he sputtered some sort of response too late as Katsuki had bound his hands in front of him with his own belt.

" Stupid, useless deku. You'll never be a hero. So just stop trying." Katsuki said leaning over. Rather than cower back and whimper like she was used to him doing she saw a spark of defiance despite him shaking with fear.

"I-i w-will be a hero!" He declared and Katsuki grit her teeth.

" BAKA-DEKU! How are you going to be a hero if you can't even save yourself." Katsuki said.Before Izuku could say anything back Katsuki crammed something into his mouth, effectively gagging him with, from what he could taste, some article of clothing.

His eyes widened and his pupils shrunk as he watched Katsuki pull down his pants exposing his boxers, something that while making him blush an even redder shade also terrified him. He could only watch in horror as he tried to struggle against his belt to escape as she reached into his boxers.

' oh my God. She's going to neuter me!' Izuku thought

However Katsuki pulled back her hand like she had been burned. Izuku saw Katsuki gain her own thick blush as she frowned before ripping off izukus boxers and looking down wide eyes and shocked.

' W-WHY THE FUCK IS HE SO BIG.' Katsuki thought. From her own estimates her childhood friend was eight and a half inches and from what she had just felt, too thick to even get her hands on. She had honestly thought she had missed it and grabbed his leg instead.

She looked back at izukus scared expression and felt for a moment about getting off and apologizing for everything she had done but it was too late.

' he probably hates me now..' she thought bitterly.

She could remember all the fantasies about her first time. She would have gotten into UA and placed first in the entrance exam and then first in the sports festival. Izuku would have been so torn down by that point that she could have swooped in and say she had changed from her time at UA and apologized for how she treated him and then he would ask her out. If he hadn't by her second year then she would ask him and then after her second year sports festival they would swap virginities together. Then they would get married she would become the number one hero, izuku would be safe working for her agency analysing quirks and praising her heroic work and she would have it all, her dream and her true love.

' if someone hadn't stolen him by then already' a voice inside her head spoke.

' he wouldn't think anyone would like him. even if they wanted to because of what I've done.' she thought back before feeling her heart clench realising the terrible thing she had done.

But now it was too late. He was sure to hate her forever after this and then he would never be in her life again. She doubted he would have the courage to go to the police. And worse yet he might still like her enough to not want her in trouble despite what she had done. Because he was incredibly selfless boy and she had betrayed his trust and destroyed their friendship.

'But that doesn't matter', she tried to convince herself ' he would be safe and he would have her first time like she had always wanted' she thought.

"K-kaachan, please d-dont. I'm s-sorry." Izuku said having spit out the gag.

She swallowed back the bile rising in her throat. What she was doing was horrible. Unforgivable but she had to or her best friend would die one of these days trying to play hero

" That's not going to happen izuku. You need to learn." She said. She slowly moved up on his hips till she felt his member pressing against her slit. She could see his shock at the feeling of her wet folds and the embarrassment at realising she had stuffed her panties into his mouth to shut him up. The green haired boy shook his head his face still red and that's when she saw it…

Tears.

She had seen her friend cry more times that she had ever wanted him too. More times than any other reason because she had caused it but until now izuku hadn't been crying and seeing the fresh tears of her once best friend finally broke her resolve.

She felt a son escape her throat and covered her mouth to prevent anymore before the dam truly burst and her body wracked with saddness. She felt tears spilling onto her hands and dripping down onto Izuku as the cruel mask she had built over the years shattered and her walls crumbled.. Years of torturing her friend and the person she loved so he would be safe, years of reassuring herself she was doing the right thing and helping him all came down around her as she realised.

She was a monster.

" I-im so s-sorry izuku. I'm so sorry." She said as she tried to wipe the tears from her face. She felt him shift underneath her. She felt a pair of arms around her and her breath hitched. She was pulled into Izuku who had somehow undone the belt and sat up and placed her head into the crook of his neck. She let out a shuttered breath as she felt his bare skin warm her. She tried to pull away, still upset and greatly saddened by what she had just tried to do but his embrace held firm.

" I-its ok kaachan. I forgive you o-ok?" Izuku said, his chin resting on her shoulder.

She out her hands on her chest to push away, feeling worse knowing he forgave her for everything. Feeling that she didn't deserve it.

"W-why? I was so horrible to you. For years, fuck I almost raped you deku!" Katsuki cried out. She felt his embrace soften and believed it was because he realised he shouldn't forgive her but when she leaned away from izuku she saw his expression.

His eyes were soft, if but a little sad. He had the smallest smile on his face despite the inner turmoil he was going through.

" B-because I know you. You're a good person who would never do that." He said softly. " I-i know you've been bullying me to stop me from being a hero. And, I k-know it sounds werid b-but I always thought that's because you cared about me. T-that you didn't want to see me hurt."

Bakugo was shocked to say the least. And while she still felt immensely guilty for her treatment of the green haired boy in front of her she also felt relief that he thought that she had been trying to help him because she had been and a little bud of hope inside her chest took root.

" Deku…" she said. " I-i was. I didn't want you to be a hero because I didn't want you to die. And I know that doesn't forgive what I've done to you but…."

" I did it because I love you." She said and blushed, cursing herself for doing so.

Izukus eyes widened and his mouth dropped for a moment before shutting silently. His expression changed and he smiled brightly as a few years leaked from his eyes.

" I love you too kaachan." Izuku said " i-it started as a crush when we were l-little." He said blushing harder and looking down.

" But then y-you were so a-amazing. You were confident and fun and brave and I admired you so much. I thought for a-a while that I had upset you b-but hearing you say that...I'm so glad y-you don't hate me." He finished and she rested her head on his shoulder again.

" Like I could ever hate you...useless deku." She mumbled before feeling a few tears herself spill over in relief and joy.

She then felt something stir and press into her lower parts causing her to heat up a bit. She leaned back and rose an eyebrow at deku with a fake annoyed expression before the green haired boy realised what had happened and blushed before turning away. She rolled her eyes playfully before smiling a bit. They might as well…

Before deku could come up with an excuse as to his sudden erection Katsuki pulled him into a heated kiss, both of their first. Izuku was shocked before relaxing into it. He wrapped his arms around her back and placed a hand on her neck as his fingers ran through her hair. She let out an involuntary moan at the tingle that went down her spine. Izuku blushed a bit hearing her mewl but at the same time it exicted him. He liked this new side of kaachan and he wanted to explore it.

Hesitantly he reached out and grabbed hold of her right breast causing another moan and a shutter from his childhood friend. She pulled away, her eyes half lidded and her breathe coming out in pants.

Izuku swallowed thickly, his pulse racing and his arousal clouding his judgment and overriding his natural shyness as he pulled Katsuki back into him, this time taking a handful of her hand as he opened his mouth to deepen the kiss. He could hear her whimpering as he ran his hand through her hair and their tongues danced around each other. He took his other hand and once again cupped her breast causing another shutter as he played with the soft flesh.

She tripped his shirt tightly before they broke away out of breath.

"Izuku.." she barely whispered.

Katsuki lifted herself slightly before grasping izukus member and aligning it with her entrance. She slowly slide down and both teenagers moaned from the feeling. As she finally sat down fully Izuku grabbed her hand in concern.

" Does it hurt?" Izuku said.

" N-no, it's just different." Katsuki said " it's a lot to take in, why couldn't you have a normal size dick, fucking useless deku." She said teasingly.

Izuku blushed but didn't say anything as Katsuki slowly rose herself before slamming back down causing both to groan in pleasure. The explosive girl soon began to pick up speed, gainnin a rhythm as she wrapped her arms around her partners neck to assist with the effort. Izuku softly planted kisses along her neck and began to nibble on her ears, something that she was convinced was frying her brain with the pleasure as she got faster.

Soon the blonde was panting as she tried to work towards her and izukus release. Izuku wanting to help in anyone he could, grabbed hold of her ass and began to lift her up and down along both to go at a faster pace. The green haired boy began to squeeze and fondle the toned ass of his childhood friend noticing the harder he squeezed the more moans escaped her and the tighter she got.

' maybe kaachan likes it rough?' Izuku thought with a bit of embarrassing riding to his face. But if it made her feel good he would try despite how nervous it made him.

Smack*

An echo of izukus hand traveled the locker room and Izuku panicked when he saw Katsuki stop

" Again." She said

"W-waa" Izuku stuttered again.

" Smack my ass again!" She said with a irritated tone and Izuku complied smacking her ass again leaving a red hand mark and he almost apologized catching katsuki's eyes rolling back in pleasure. He gave another testing smack and Katsuki began bouncing again, much faster than before and Izuku got his answer on whether she liked it rough or not. He just hoped he could keep his nerve.

" Y-you like that?" Izuku tried to say confidently but came out a bit shaky. She didn't say anything but nodded vigorously and izuku closed his eyes and hoped she wouldn't be mad at this…

He stood up, keeping her firmly wrapped around him by holding her ass before pinning her against a wall and began thrusting into her causing deep throaty moans to echo the concrete walls.

'how the fuck is he so good at this?!' she questioned not minding at all how skilled her partner was but surprised as she thought she was going to be the one to take control.

He roughly grabbed her left breast and played with the nipple, twisting it lightly and rolling it causing her eyes to roll back in pleasure once again before he did something she never thought he would do.

He slapped her.

It only stung slightly but it was enough to awakened a fire in her she didn't know she had inside her.

"Y-you like that you...slut." he said the last part very quitely and with a large embrassing blush.

Katsuki couldn't help it, she snorted but the sheer adorableness of him and how hard he was trying to be rough with her only made it very cute and incredibly hot for her. She decided to play along.

" Use me more you useless fucking deku. Fuck me harder!" She said with a slight growl.

He gripped her breast harder and he felt her wrap her legs around his hips as he thrusted into her. She grunted with every thrust, panting and he could feel her body tensing, something he knew from his own privacy masterbating as a sign she was going to come soon, along with him.

He took his right hand away from her ass and used only his hips and the wall to support her as he put his thumb into her mouth, cupping her cheek with the rest of her hand and he watched her eyes roll up as her body tensed heavily.

" I want you to cum for me kaachan." Izuku said as he winced hoping he could make her cum in time. He felt her legs pull him deep inside her and her arms wrapped around his back and dig into his skin as she screamed into his shoulder. It was enough for Izuku who let loose his release deep inside her causing her screams to intensify for a moment before both calmed down, breathing heavy and standing there before Izuku set down Katsuki on her feet. She stood for before slipping but Izuku managed to catch her, and slowly sat down on on the ground next to her. She leaned her head against his shoulder as both caught there breath.

They sat there a moment, cuddled up next to each other before Izuku started fidgeting a bit causing Katsuki to sigh but smile softly.

" What is is." She said more than asked.

" A-are we t-together now?" Izuku asked blushing and not meeting her graze. She hit him on the shoulder lightly.

" Baka! Of course we are. And we're going to be forever useless deku." She said. She watched his blush intensity but a small smile creeped on his face.

" I-i'd like that " he said and she felt herself blush at his response.

Izuku's smile faltered for a moment before he spoke.

" Kaachan, I want you to meet someone."