Archive of Our Own ^beta

Bakugou loved violence and action. And fighting, can't forget the fighting.

Some people might even say he loved it a little too much. But fuck those people.

So what if fighting made his dick hard? It was his damn dick and he could get turned on by action movies and whatever the hell he wanted.

Katsuki didn’t even watch porn, he watched MMA fights instead. Because, yeah alright, he got a raging boner for watching big buff men wail the absolute shit out of each other. Katsuki would dare anyone to find a shitty porn video that’d make him come harder than watching some guy get uppercutted so hard he hits the mat.

Ah fuck, he’d made himself hard thinking about it. Crap.

The last thing he needed was to get caught with a hard dick by Kirishima again. It was embarrassing enough that a couple of weeks ago they’d been sparring and Katsuki had landed on top of him and groaned. But who the fuck could blame him, really? His best friend was built as hell and could not only take a beating, but dish one out too. With a fucking smile on his face. Jesus Christ.

And freaking, last week! Katsuki had been absolutely laying into him - and the glorious bastard had literally punched him straight in the gut and winded him, then swept his legs from under him before he could blast him back. The next thing he’d known, Bakugou had been on the ground with Kirishima on top of him, pinning his arms with hardened hands and just grinning down at him.

He’d nearly come in his pants.

And okay, maybe the fact that Katsuki had the mother of all crushes on his shitty haired best friend didn’t help matters at all. But he still stood by the fact that it was Kirishima’s strength he admired the most. And maybe that dumb, cute, thousand watt smile too. Maybe.

Just a little.

Alright fine! It was everything. Everything about the redhead drew him, and Katsuki honestly didn’t know how he’d made it almost three whole years without literally combusting with feelings. ‘Cause he was shit at feelings and the first time Kirishima had hugged him full on, Bakugou had grabbed him and thrown him over his shoulder to the ground like a WWE champion out of sheer panic.

Luckily his best friend was also dumb and sweet as fuck. He’d simply stood up, dusted himself off and said “Bro I wasn’t tackling you! I just wanted a hug!” Like, could one person actually be any more perfect? Katsuki had basically given him a pile driver for wanting some affection, for God's sake. He’d been so fucking red as he’d covered his embarrassment with a scowl and grabbed the redhead so hard he’d wheezed out a laugh at Katsuki’s over zealous hug.

The first hug of many.

And every one of them shook Bakugou to his core. Kirishima was just so fucking affectionate and willing to touch it was unreal. It had taken him less than a month after that first real hug at the beginning of their second year to have Katsuki secretly craving his hands on him any way he could get them. It was ridiculous.

Coupled with the fact that he’d grown several inches and bulked up even more over the last break? Bakugou had never stood a fucking chance.

Kirishima was probably only two or three inches taller than Katsuki, but the man had literally packed on muscle, and it just wasn’t fair on his weak, gay heart. Like, Katsuki was ripped, but fuck.

He felt his cock twitch and debated making himself come quickly before he had to sit next to his best friend all evening, squashed up on the sofas in the common room to watch shitty films with the morons he called classmates.

Bakugou didn’t touch himself all that much, considering how often he actually got hard fighting and watching people fight. He really tried to limit himself to once every few weeks to a month.

Mostly because he felt kinda guilty using thoughts of Eijirou to jerk off to. He would put on a boxing match or an MMA fight and imagine one of the fighters was Ei as he fisted his cock. Or simply play through his memories of their sparring matches, or of Kiri fighting any of their classmates.

Katsuki was already palming his cock through his sweats with a hissed in breath, pushing his head back into the soft down pillows at the head of his bed as he lay back. Yeah, he wouldn’t take long, he could get away with it. It had probably been almost three weeks since the last time, he needed this.

He reached to snatch a couple of tissues from the box on his bedside table, scrunching them in his free hand slightly as he slipped the other straight into his boxers beneath his sweatpants.

“Oh fuck.” He whispered, sinking his teeth into his bottom lip to keep himself quiet as he smoothed his thumb over the head of his already weeping cock, spreading the pre come there to make the glide easier, before grabbing himself hard with a muted groan.

One pump, two pumps, three. His hips twitched and jerked up off the bed, before he caught himself and pressed them back down, closing his eyes to picture Kirishima’s wickedly excited grin when he’d won their fight last week.

Yeah, that’s it, Katsuki thought to himself, picking up the pace already, prove how strong you are Eijirou, throw me to the floor and fucking bite me…

God, the thought of literally fighting his best friend to see which of them could fuck the other would never fail to bring him right to the edge in a moment. So he pictured it, biting back a moan as he imagined slamming Eijirou up against a wall and kissing him until he could taste blood, only to have the redhead sweep his legs and follow him to the floor.

He fisted himself faster, already close. Would Ei rip off Katsuki’s shirt with a hardened hand? Oh fuck, yeah he definitely would-

“YO BRO! YOU READY??” Came Kirishima’s loud happy shout, as a single bang sounded on his door and suddenly the handle was turning and his best friend was barging in.

Katsuki’s eyes flew open and he bolted to sit upright so fast he actually felt dizzy. He snatched his hand from his boxers and crossed his legs, immediately leaning forward so that his baggy tank top would hide the obvious bulge at his crotch, before balling and stuffing the wad of tissues in his hand beneath his pillow.

“FUCKING KNOCK! JESUS CHRIST!!” Katsuki shouted, fighting to keep the heat from his cheeks as he sneakily dropped his hand to the side to wipe the precome slicking his fingers on his bed sheets, “I could have been naked, you shitty haired bastard!”

Did he sound breathless? Shit, he hoped he didn’t sound breathless.

“Dude, seriously? You walk around naked in the baths all the time, like do you even know what a towel is?” Kirishima laughed genuinely as he strode straight into Katsuki’s room and put a book down on his desk, “thanks for lending me this man, it actually really helped me work out my maths homework last night.”

Ah fuck, Katsuki felt his cheeks heat with a blush at the redhead’s smile, even as he opened his mouth to snap, “if I give you a book with something ‘for dummies’ written on it, I’ve fucking bought it for you, jackass.” Though, maybe he could have made it more clear, instead of just throwing the book at Kirishima’s head and practically bolting from the room yesterday.

But his palms had already been threatening to start smoking from nerves and embarrassment, what the fuck else was he supposed to do? He'd never actually gone out of his way to buy someone anything before.

Kirishima’s cheeks tinted a light shade of pink as he scratched the side of his cheek and averted his gaze, “oh. Thanks bro. I really appreciate it.” He leaned forward to pick the book back up with a small smile, tucking it against his clothed abs before turning back to Katsuki, “I’ll- I’m just gonna put it back in my room, I’ll be back in a sec, then we’ll go down, yeah?”

“Yeah, whatever.” Katsuki said gruffly, still leaning forward with his elbows on his knees to hide his erection. He watched as his best friend crossed the room and closed the door behind himself on his way out, then bolted up from his bed and into his personal bathroom.

“Shit, that was close.” He whispered breathlessly, gripping the edge of the sink with sweaty fingers as he took a calming breath, willing the beat of his thumping heart to slow the fuck down. He closed his eyes and tried to picture weird gross things and get his dick to take the hint that Kirishima walking in the room was not a good thing.

Fuck.

He’d been right at the edge.

His grip tightened on porcelain for a moment, before he gave a growl and flicked the cold tap on to blast at full force into the basin and shoved his face beneath it. The icy water shocked him enough that he fought back a gasp as he held his head beneath it for a slow count of ten and pulled back to draw in a sharp breath.

“Bakugou? You there?” He heard Kiri shout, uncertainty colouring his voice.

“Fuckin’ shitty timing.” Katsuki grumbled under his breath, before grabbing for a hand towel and heading back into his bedroom, “what? I’m right here asshole, no need to shout.” He raised his voice to a normal level as he caught sight of his best friend standing in the middle of his dorm room.

The redhead turned to him quickly, the dejected puppy look on his face, breaking away instantly into a wide, radiant smile, “I thought you’d gone down without me bro.” He said, relief in his tone.

Katsuki tried not to feel too happy at that grin as he towelled off his face and the ends of his hair. Trying to keep the scowl on his face was always difficult when Kirishima looked at him as though he was the most special person in the world though.

Bakugou knew he was probably just kidding himself, thinking too much into his best friend’s happy smile, but he'd never seen Eijirou look at anyone else like that.

“Why would I go down without you when I don't even wanna go in the first place?” Katsuki grumbled, mostly for show. He'd gotten used to the shitty movie nights in the common room, even though Kirishima had had to pick him up, throw him over his shoulder and literally carry him there, kicking and screaming the first time.

And yeah, okay, maybe Katsuki had bitten him too, but like fuck he was gonna sit there and willingly watch ‘mean girls’. He'd quickly clamped his mouth shut when Kirishima had smacked a hand down across the back of his thighs, angrily telling him to get his teeth out of his side, and suddenly Bakugou had been fighting both an angry blush and a boner at the action.

He'd begrudgingly allowed himself to be set down on the sofa, baring his teeth in a snarl as Deku tried to claim the seat beside him, sending the nerd a few quick steps back with his hands held up in a show of surrender, as Kirishima sat down beside him with a light laugh and threw a casual arm around his shoulders.

He hadn't missed a movie night since.

And no, it wasn't just because Eijirou always put an arm around him, he was pretty used to that shit by now - they'd even shared a bed a few times before. No big deal, Katsuki told himself with a flush as he followed Kiri into the elevator, hands stuffed into his pockets.

It was because sometimes the idiot brigade put on action films.

And Katsuki would be the first to admit that it probably wasn't cool to sit there with a woody in a room full of his classmates, with his thigh pressed against his best friend’s as he watched the actors on screen fictionally beat the hell out of each other, but it's not like anyone noticed. And there was just something a little exhilarating about knowing that no one else knew he was turned on while they all watched movies together.

“Wanna share my blanket?” Eijirou asked as he grabbed a bright red Crimson Riot throw from the back of the sofa. It was always downstairs whenever they had a movie night.

“It’s whatever.” Katsuki shrugged and tucked his legs up to cross them, feigning disinterest even as his heart flipped in his chest.

“Yeah, it’ll help him hide his violence boner!” Kaminari laughed from the other sofa and Katsuki tensed as his eyes bugged out. Deku choked next to the lightning hero, turning bright red as he spluttered. Kirishima frowned and cocked his head to the side, looking between Kaminari and Katsuki, clearly confused.

Well, obviously someone had noticed then. Shit.

Katsuki bared his teeth and immediately flipped Kaminari the bird. “Shut your fucking mouth, or I’ll put John Wick on and smack you with it!” He snapped angrily. Might as well own it, or his shitty classmates would think he was ashamed or something.

Kaminari choked on a surprised, snorting laugh and devolved into a coughing fit as Midoriya patted him on the back, face now redder than a tomato. Fucking loser.

“Uhhh, what’s a… actually, never mind.” Kirishima chuckled, still clearly a little confused as he shook his head to himself and sat down. He shook the blanket out and pulled it up to both of their chests, making a show of snuggling in as he sighed contentedly.

Gorgeous dumb idiot.

The movie they chose was actually a martial arts story, and Katsuki knew he probably couldn’t enjoy it as much as he wanted to now, because of Kaminari’s big stupid mouth.

Katsuki tensed when Kirishima set his head on his shoulder, eyes blowing wide as he cast a look down at unspiked red hair, almost too terrified to move in case his best friend had fallen asleep on him. But cat-like red eyes were open and focused on the screen as the main guy punched a wooden board in half.

Oh shit, that was hot and Kirishima was fucking lying on him like it was nothing.

It was almost pathetic how fast his cock hardened beneath the blanket. Shit, fuck, balls. He did not need this right now. If Kaminari pointed out the fact that he had a boner while Eijirou was half snuggled up to him, Katsuki was going to have to murder everyone in the room and then himself, because he would never be able to get over that level of embarrassing fuckery.

Katsuki looked around quickly, but no one was paying them any mind. Phew, okay, now if he could just push his dick up into the waistband of his sweats he was golden. He slipped a hand beneath the blanket, holding his breath as a fight scene started on the tv. His fingers faltered over the straining bulge at his crotch as he watched the protagonist slam another guy into a wall so hard it cracked.

He pressed his lips into a thin line when he drew in an involuntary sharp breath and Kaminari looked over suddenly.

Katsuki scowled at the screen, pointedly ignoring his shitty classmate when a lopsided grin split his face, before he turned back to the movie. Asshole.

Katsuki jerked a little when he slipped his fingers into his boxers, closing his eyes for a second against a surprise jolt of pleasure. Holy fuck, how much precome was he leaking?? He’d been so close earlier, he could probably make himself come with a few hard pumps at this rate.

Katsuki caught himself just as his fingers wrapped around his cock, opening his eyes to look around as he made a show of shifting on the sofa to hide the fact that he was rearranging his dick.

What was he, some kind of moron??

“You okay there, man? Need to get comfortable?” Kirishima asked as he lifted his head from his shoulder to smile at him.

“‘M fine.” Katsuki cursed the crack in his voice as he sneakily wiped the precome on his hand against his sweatpants under the duvet, before almost kicking himself. He’d just wiped fucking precome on his goddamn black trousers.

He needed a new brain, what the actual fuck?

Katsuki just hoped it was too dark when he got up later for anyone to notice. Shit.

By some miracle no one actually noticed Katsuki’s slip up, and he had been able to retreat to his room afterwards. Decidedly less miraculous though, was the fact that his idiot best friend fell asleep on his bed mid-goddamn-sentence, and snored up a storm while Katsuki bit his lip and stared, debating the pros and cons of ducking into his en-suite bathroom to jack off like a man possessed.

Ultimately, he decided not to. Like fuck he’d let Kirishima maybe wake up and hear him panting and moaning literally feet away while Katsuki thought about him snapping his back like a glow stick.

What was worse, was the fact that he couldn’t even get ten fucking minutes alone to just beat his frustration out of his dick.

The hero course fucking sucked.

Okay, no it didn’t, but Katsuki was so fucking frustrated after another three days, that he felt like screaming.

So he did. He beat the absolute shit out of Deku in class and immediately demanded another opponent. And of fucking course it was Kirishima who stepped up and smashed his fists together with a sharp toothed, shit eating grin.

Katsuki howitzered the hell out of the gorgeous bastard, but Kirishima had such good control over his hardening now that it was like fighting a literal tank. And one lucky throw had Katsuki’s back slamming into a wall as blood filled his mouth from a surprise punch.

“Oh, fuck yeah.” He moaned without thinking as he slid down the artificial cliff side to thud into the dirt.

Kirishima stopped dead in his tracks, eyes wide and cracked with his hardening. “Did…did you just say ‘fuck yeah?’” He asked as his quirk faded away, fist still raised as he looked down at Bakugou and gave him a confused frown.

“No! Just shut up and fucking fight me already!” Katsuki demanded as he shot to his feet, hoping his cheeks weren’t as red as they felt right then. Goddamnit he needed to come soon, or he was gonna embarrass himself.

Kirishima’s grin was back as he slammed his fists together again. “I’m gonna flatten you!” He shouted, baring his teeth as he burst into unbreakable in an instant.

If that man stepped on Katsuki in that form, he was gonna nut on the spot.

Katsuki gave as good as he got, revelling in the rush of adrenaline and endorphins from a good fight. He tried to keep his thoughts clean, but when a fist slammed into his gut so hard he could have puked, he dropped to his knees and prayed to a god he knew didn’t give a shit that he wasn’t about to get tackled.

It was worse.

Kirishima’s booted foot slammed into his shoulder, kicking him back in the dusty dirt so hard he skidded on his ass a little, coughing into his fist for a moment. Then the boot was back, pinning him to the ground as his best friend laughed victoriously, before-

“Holy fuck.” Katsuki gasped, eyes widening as Kirishima sat directly on his chest like he was a squatting stool or something. Oh no.

“Dude, get your head in the game. You left yourself wide open like three times. You better not be taking it easy on me.” Kirishima poked Katsuki in the forehead with a softened finger, an unimpressed look on his face as he raised a single brow.

Shit, that look was way too hot on his face, who gave him the right to be so hot?!

Katsuki was rock hard in seconds and shoving his best friend off himself as he scrambled to a stand and turned his back, trying to figure out how the hell he was supposed to hide his boner while they fought. But apparently there was actually a deity that didn’t completely hate him, because the buzzer for the end of the lesson chose that moment to go off, and Katsuki nearly sagged with relief.

Katsuki hightailed it into the showers, waiting beneath the hot spray until everyone had gone, before grabbing his cock like it had wronged him. He nearly fucking squealed when there were two bangs on his shower door, before Kirishima’s voice rang out, asking him if he was okay, and if he wanted his back washing.

“Jesus Christ, I just need one fucking minute.” Katsuki groaned desperately, releasing his cock as he threw his head back on his shoulders beneath the spray, before turning it to cold.

Needless to say, over the next couple of days, Katsuki became a walking talking nightmare. Well, a stomping, shouting and screeching nightmare, more accurately.

“Shut your fucking FACE, DEKU!!” He bellowed, before pelting the television remote across the room with all his strength, aiming for Midoriya’s throat. The bastard caught it. Dammit.

“Hey! Throwing your weight around for no good reason is not cool, Bakugou!” Kirishima admonished immediately, folding his arms over his chest and plastering an unimpressed look on his face. “You should get a time out or something.” He shook his head, and the bottom dropped out of Katsuki’s stomach.

Too hot. Now he wanted to fight. And maybe actually lose to the angry redhead.

“I’m not a fucking child, you can’t put me in time out!” He snapped, covering his arousal with anger instead. He just wanted to come, dammit!

“How about a spanking?” Kaminari suggested from his position on the rug. He rolled over and lifted his head to wiggle his eyebrows as both Katsuki and Eijirou choked and turned red.

“THAT’S IT, YOURE DEAD FUCKING MEAT, YOU USELESS EXCUSE FOR A PHONE CHARGER!” Katsuki shouted, stomping over as Kaminari squealed and tried to roll away.

“DAMMIT BAKUGOU!”

Katsuki’s eyes bugged out when Kirishima grabbed him from behind and hefted him from the floor like a sack of potatoes. He thrashed and demanded to be put down, face hot as he panicked a little.

The redhead set him down on the sofa and promptly grabbed his Crimson Riot blanket, before wrapping it tightly around his arms and tucking in the corner at the top like a towel.

“Oh, you did not just make a burrito out of me.” Katsuki growled at his best friend and Kirishima grinned down at him like the asshole he was.

“Yep! Can’t blow anyone up if you can’t move your hands. I’m a genius.” He grabbed his popcorn from the coffee table and sat down right next to him on the sofa, before lifting a popped kernel to Katsuki’s lips. “Don’t worry, I’ll still share though.” His smile was almost blinding again, so Katsuki opened his mouth and let the idiot feed him.

He chewed and grumbled under his breath, fighting a blush at how intimate this was. The Jackass always said he made himself into a burrito when he wanted a hug or if he was feeling down too, did he realise there was something up with Katsuki?

The movie that night was fucking Marley And Me, and Katsuki couldn’t even stop himself from crying at the end. Kirishima openly sobbed next to him, and Yaoyorozu patted his arm and produced a handkerchief for him to dry his eyes with.

Katsuki nearly jumped out of his skin when his best friend shoved his face against his arm and blubbered. “Good dog. Oh my god what a good dog.” He sobbed wetly again.

“Shit, uhhh…” Katsuki struggled free of his stupid burrito wrapped blanket prison and gingerly patted Kirishima’s back. Having absolutely no idea what else to do, he grabbed the blanket awkwardly and pulled, shifting until it was free from behind him. He tossed it right over Kirishima’s back and pulled a little, tucking it around muscular shoulders as he sniffled quietly himself. Stupid dog movie.

“T-thanks. Ap-preciate it.”The redhead heaved a few uneven breaths and hugged Katsuki outright, crying into his shoulder.

What the fuck was he supposed to do in this situation?? He couldn’t beat the shit out of a movie for making Kirishima cry, and he had no idea how else to respond.

Katsuki wiped at his own stupid leaking eyes, before rubbing over his best friend’s back. “It’s just a movie.” He whispered, as reassuring as he could.

“Yeah but it’s a sad movie. Oh god that’s so sad.”

“I don’t know how to fix that, Kirishima.” Katsuki groaned, almost pained at how frustrating it was to see the redhead crying. Everyone in the common room was looking at them, and it normally would have pissed him off, but they were all obviously crying or upset too, as they gazed at Kirishima’s broad back.

Giant, stupid puppy of a man.

God fucking dammit Katsuki had it so bad.

The next morning Katsuki rose from his bed, after batting Kirishima’s foot out of his face. Should have bit it instead. Where were the idiot’s socks?? He yawned and ignored his throbbing morning wood in favour of brushing his teeth. Stupid boner. He waited until it softened and headed downstairs to grab a drink and maybe make some food.

“What do you mean he hasn’t made a move yet? No way!” Mina exclaimed, before Kaminari shushed her and leaned in closer. Sero watched them whispering with a smug smile on his face, but nearly dropped his tea cup when he saw Katsuki walking in, scratching at the side of his neck.

“Well, I mean I don’t think he has. But I have absolutely no idea what they’re playing at-” Kaminari cut himself off when he noticed him, and Katsuki rolled his eyes.

“I don’t give a shit what you fuck nuggets are talking about, no need to crap your pants.” He growled, yanking the refrigerator door open to grab a can of iced coffee.

“Wow, someone woke up on the wrong side of the bed this morning.” Kaminari rolled his eyes, but then softened a little. “How’s Kirishima? He took the end of that movie harder than anyone else, I didn’t think he’d cry that much.”

Katsuki bared his teeth for a moment. “Was it you who chose that fucking thing??” He demanded, grabbing the shorter blond by the front of his baggy lounge shirt. “If you ever make him cry like that again, I’ll rip your face off!”

“It was just a movie!” Kaminari defended, eyes bugged out as he looked to Sero and Mina for help.

“Tch. Whatever, Idiot.” Katsuki let him go, turning to grab a chocolate protein milkshake from the fridge, before closing it. He stormed upstairs and practically kicked open his bedroom door, freezing when he saw that Eijirou was awake and scratching his stomach, his shirt hitched up to reveal tanned abs.

“Hey man, sorry about last night. My family had a dog like that when I was younger and I kinda lost it a little.” He sat up and moved to the head of the bed, frowning. “Hey, where are my socks?” He yawned as he lifted the duvet, looking around.

“You don’t have to explain, dumbass. And you took them off in the night and shoved your stupid foot in my face like five times.” Katsuki rolled his eyes, settling in his desk chair to avoid being on his bed with his best friend.

“Wow, sorry. I kinda fidget in my sleep. Ooh! Gotcha!” Kirishima held up a white sock in victory, before putting it on and looking for the other. “Wanna spar a little?” He asked, smiling at Bakugou, eyes still a little puffy from his crying the night before.

Shit.

“Yeah, whatever.” Katsuki feigned disinterest as the back of his mind screamed at him that he was a moron for agreeing right now.

But he could handle it.

Nope. He couldn’t fucking handle it!

Katsuki marched into the showers at the school gym, still fully clothed and red in the face. He tossed off his clothes, hung them on the hook on the back of the door and stepped beneath the shower head.

“Dude, what the hell was that??” Kirishima demanded outside the door a few moments later and Katsuki groaned, baring his teeth in frustration as he once again ignored his dripping, almost painfully hard cock and turned the shower to cold.

“Fuck off!” He snapped. If he didn’t get to come soon, one angry word from his stupid best friend was gonna set him off, and he’s be messing his boxers in the middle of class or something. Whyyyyy?

“No way! You just blew up half the sparring area! What’s with you?” Kirishima snapped back, and Katsuki drew in a sharp breath at his tone. God, he needed fucking help for the way that made his dick twitch in interest. “You know you can talk to me, right?” His best friend’s voice softened, and Katsuki sighed.

“It’s seriously nothing, don’t worry about it.” He assured, but found himself pouting when the cubicle next to his opened and closed. Great, no jerking off in the shower today either.

That night it was Katsuki who fell asleep in Eijirou’s room. He woke up humping the goddamn mattress, but luckily the redhead hadn’t woken up yet. They were both at the head of the bed this time, and the idiot had somehow taken his shirt off in the night this time.

Dear fucking god, that man was going to drive him insane at this rate.

Kirishima’s alarm went off less than three minutes later, just as Katsuki was taking deep breaths and debating rubbing one out before classes started. He threw his head back with a frustrated shout that had his best friend sitting bolt upright, staring down at his face as he asked what on earth was wrong, looking worried.

Katsuki simply stormed out and threw his uniform on, before marching straight to school without eating breakfast. Kirishima caught up to him and tossed him an apple that he ate so angrily he almost choked on it.

“Yo, what crawled up Kacchan’s ass this morning?” Kaminari asked, pouting when Katsuki shoved past him to take his seat with a huff.

“I dunno. Maybe I punched him in my sleep or something…?” Kirishima pondered, rubbing at his chin.

“Honestly, I bet he’d like it.” Dunce Face quipped back immediately, side eyeing him with a smug grin.

Katsuki tensed to rise from his desk and beat seven shades of shit out of the little weasel, but Kirishima folded his arms over his chest and frowned down at Kaminari. “Dude, not cool. Where’d you even get these weird ideas?” He admonished firmly.

Weird.

Shit.

Katsuki was in a foul mood all day after that, stuck in his own head mulling his best friend’s words over. He went harder than ever on a villain with a power up quirk that afternoon at his internship, almost earning himself a warning. Okay, no matter what he was coming today. He was gonna choke the chicken so hard he gave his dick friction burn, even if he had to lock and barricade his bedroom door to do it.

Kirishima met him at the train station to walk back to UA, chatting away about his day while Katsuki had been at his internship, because he hadn’t been at his that day. Nothing seemed out of the ordinary, until the shit hit the fan.

A small explosion sounded in the distance and he and the redhead shared a shocked look, before running towards it full throttle. It was a bank robbery. Four villains with unknown quirks.

“Someone call for some heroes!” Kirishima shouted at civilian bystanders, before hardening his hand and ripping his shirt clean off. “Then get to safety! We’ll take care of this!”

God he was so damn hot.

Katsuki immediately loaded up the gauntlets he still wore and launched himself into the air. “KICK THEIR FUCKING ASSES, KIRISHIMA!” He bellowed, already grinning as he launched an airborne AP shot attack as the redhead smashed a fist into the biggest guy's gut, already in unbreakable form.

The asshat villains were tougher than they had been expecting, and Katsuki slammed straight into a lamppost about ten minutes later, one of his gauntlets smashed to pieces. He flipped back to his feet and launched back into the fight without blinking, the heady rush at the back of his skull making him grin almost manically as Kirishima shouted to ask if he was okay.

A pale woman with long black hair and all black eyes emerged from the bank with a large black glass box floating behind her. She glared at them both and raised a hand tipped with long black claws, and suddenly Katsuki was hitting right into Eijirou’s chest as glass surrounded them. He twisted as they toppled to thud into the ground as the clear glass shrank and began to darken.

How did the glass not shatter??

The world went dark around them, and suddenly Kirishima was snarling and thrashing beneath him, hardening fading from his bare chest, probably so that he didn’t hurt him with his hard, rough angles.

“No no no no no! HEY! LET US OUT!!” He shouted, breathing ragged as he snapped his teeth and punched the side closest to them.

Katsuki’s eyes blew wide as saucers in the darkness when a muscular thigh slammed up between his legs as the redhead bucked his hips, clearly trying to get some kind of traction to break out. Oh no. Not this. Anything but this.

“Stop fucking struggling!” He gasped, trying to shift his hips back as his cock began to swell. Now was not the time dammit! They had to figure out how to get the hell out of their prison, but his dick was much more interested in the fact that his best friend was writhing and snarling beneath him. “Shit-” he choked as he dropped forward heavily, trying to struggle out of the gauntlet trapped between the wall and their hips.

“How are you not struggling?!” Kirishima demanded, tone angry as he grabbed Katsuki by the hips and shifted him bodily, moving them away from the one wall, but grinding against him in the process. “One of your grenades is digging into my leg.” He practically growled, and Katsuki dropped his forehead to a muscular pec as he fought an honest to god whimper.

That wasn’t a goddamn grenade.

“Kirishima, stop fucking moving, or I’ll-” Katsuki practically begged, hands smoking slightly before he got his quirk under control. He’d smoke them unconscious or worse if he didn’t get a hold of himself.

But the redhead’s leg lifted again between his, and a loud grunt sounded as he booted the end of their box prison angrily. Katsuki felt the head of his cock peek through the waistband of his hero costume trousers, and his thighs began to shake with the effort of not simply rolling his hips.

Katsuki’s cheeks were on fire, he could even feel the heat creep down his neck all the way to his chest, as he clenched his fists and screwed up his face in the dark, as his gorgeous, stupid best friend continued to try and free them.

He wanted to come. He wanted to come. He wanted-

His eyes flew open, unseeing as a fist slammed into obsidian right above his head and Kirishima veritably growled in his ear. “I hate being cooped up. I’m gonna fucking kill them when we get out of here!” He punched again.

Oh fuck.

Katsuki’s mouth dropped open as a loud, relieved moan ripped from him, and he finally rolled his hips as come pumped from him to lash and smear and soak between them. There was so much, he had denied himself for so long, and right that second he couldn’t even register or care that he was destroying his friendship, until he collapsed, chest heaving as he felt his release squish between his hero shirt and Kirishima’s bare abs.

Kirishima was stock still beneath him, and silence suddenly surrounded them, thick and heavy. The sound of a loud gulp echoed like a gunshot might, and Katsuki flinched, even as he still lay boneless and tingling on his best friend’s chest.

“Bakugou…did what I think just happened, actually just happen?” Eijirou whispered after a long pause. A tentative hand reached to slide between their stomachs and the redhead drew in a sharp, shocked breath. “Holy shit…” the hand withdrew and Katsuki’s body finally responded to his internal ass kicking.

He drew back quickly, still leaning over his now come covered best friend as he caught his breath. “It was an accident! I told you to stop squirming around and punching shit!” He snapped defensively, whole face on fire. There was no way he could talk his way out of this when the scent of come lingered between them and Kirishima was wearing said accident. But then deep, amused laughter burst out into the darkness of their glass prison and Katsuki bristled. “Don’t you fucking laugh at me, asshole!” He half shouted, cheeks even hotter than before.

“Sorry, sorry! I’m not laughing at you, I swear! Okay, maybe a little. But I’ve been waiting months for you to be ready for sexy stuff, and then you just go and nut on me in the middle of a fight. I mean-” another laugh rang out, and Katsuki felt his best friend’s abs tensing and flexing with his amusement.

Wait, what??

“The fuck is that supposed to mean??” Katsuki demanded, eyes wide. He wished he could see his damn face!

“Dude, how many dates have I asked you on already? We sleep in each other’s beds all the time, I’ve given you massages, bought you gifts, you know dating stuff. Please tell me that didn’t go over your head.” Kirishima said, his tone surprisingly calm considering how angry and wound up he had been a few minutes ago.

“Those were dates?! I don’t know anything about that shit! I thought you were just being your usual overly sweet self!” Katsuki panicked, trying to sit up and cracking his head on the top of the box. He cursed and Kirishima chuckled, pulling him back down into a hug.

“And here I thought I was being a good boyfriend, waiting for our first kiss. You know, that’s usually how people start right? Pretty sure skipping straight to humping and coming all over someone isn’t normal relationship behaviour.” He teased, and Katsuki knew he had a shit eating grin on his face right then.

“It was an accident! I haven’t, you know, in over a month! And you were beating the hell out of this thing, and snarling and…I like that shit, okay?” He trailed off, sticking his bottom lips out to sulk in the dark.

“Jesus, Katsuki. No wonder you’ve been so mad all the time.” Kirishima drew in a sharp breath, before thick fingers buried themselves in the back of his hair, pulling his face up until he felt warm breath on his lips. “But now that we’re on the same page…”

Katsuki tensed when their noses bumped a couple of times, before sighing into Eijirou’s mouth when soft lips pressed against his. The kiss deepened almost immediately, a little clumsy and messy, but more than good enough to have him groaning in frustration and pulling his hips back a few minutes later to hide how turned on he was again.

Goddammit.

“Hard?” Eijirou chuckled, before firm hands at his waist pulled him back down and a thick thigh rubbed against him. “Me too…” the redhead rolled his hips and Katsuki choked on an almost helpless moan.

“Oh fuck. Oh shit. Be rougher with me, fucking please.” He groaned, burying his face in the crook of his apparent boyfriend’s shoulder.

“Wait, was Kaminari right about that violence boner thing? I thought he was just teasing you because of your winning personality.” Katsuki bit his lip when fingers immediately hardened on his ass and yanked him down, drawing a moan from them both. “Like this?” Kirishima asked breathlessly, rutting up against him a little faster.

Katsuki made an aborted sound in his throat and nodded rapidly. “Harder. You could literally throw me into a wall or tackle me to the ground and I’d love it. I watch fights instead of porn and everything.” He explained, panting as his sweaty palm slid along the glass beneath them, making it hard to get a grip.

“Wow that’s…I had no idea that was a thing. Sounds manly as hell.” Kirishima praised, before scratching right up his back to grab blond hair in a death grip, pulling Katsuki up to arch his back as he rolled them to the side and shoved him against the black wall.

Sharp teeth sank into Katsuki’s neck a moment later and his eyes rolled back into his skull. He rutted forward desperately against his boyfriend’s thick, hard cock, his own trousers slipping down his hips until he was rubbing his entire length against denim.

“‘M nearly there.” He warned, hands gripping at everything he could latch on to, nails scraping across random patches of hardening as heat pooled low in his gut.

Kirishima yanked his head back further and practically growled against his throat and that was all it took. Katsuki wasn’t even sure that he was breathing as he came a second time, twitching and moaning, smashed up against the side of their glass prison. His boyfriend might have been praising him as the rustle of fabric sounded, before a hand jerked rapidly between them.

Lips slammed into his and he kissed back sloppily, still reeling as he slowly came down, before warmth splattered against his hero costume shirt and bare cock as Eijirou gave a beautifully relieved moan, right into his mouth, before slumping backwards, pulling him along too.

They lay there, breathing heavily for a long moment, before Eijirou kissed Katsuki’s sweat dampened hair and gave a breathless laugh. “Okay, so we should probably try to get out of here now.”

Katsuki snorted and tried to shift a little in the awkward confined space to pull up his loose trousers. “Right. Can you just make your arm unbreakable? Maybe-”

He cut off when glass shattered to glittering dust around them, practically disappearing into the breeze. They both hissed in a sharp breath as bright daylight assaulted them, making their eyes water and practically stream as they blinked to adjust their vision.

“Oh, you’ve got to be kidding me.” Aizawa’s voice cut through Katsuki’s afterglow and he looked down at his boyfriend, sharing a wide eyed look of ‘oh shit’. They were both a state, and it felt like maybe Katsuki’s neck was bleeding from being savaged in the hottest way possible. It was also very obvious that they were splattered with come and their lips were kiss-bruised.

Aizawa turned on the spot and immediately walked away, shaking his head. His eyes had been red and dry looking, he had clearly been fighting after they got captured. When did he even get here? Was he out running errands or something? Aizawa stopped by an EMT and pointed at them, before walking to speak to the police. The woman bustled over and handed them two foil blankets to cover up with a deep blush, before hurrying away too.

“Oops.” Eijirou said, completely inelegantly, and Katsuki burst out laughing, unable to help himself.

Fucking oops.

After getting back to the dorms, they ducked straight into the showers and changed into pyjamas, before making some food. Eijirou kissed the bite mark on Katsuki’s neck multiple times and apologised, but Katsuki waved away his concern.

“I got hard when you kicked me across the training grounds and sat on me before, trust me, it’s fine.” He grinned as he told Eijirou to taste the curry they were making, but the redhead simply laughed and grabbed him, lifting him onto the island counter and shoving him back.

Katsuki’s heart about stopped when Eijirou stepped between his legs and yanked his ass to the edge. He stared up, swallowing thickly as a cocky grin slashed his boyfriend’s face. Oh yeah, that’s the stuff.

Eijirou leaned down but stopped abruptly when a loud whoop sounded from the kitchen doorway. Shit. They both scrambled up and away from one another quickly, faces red. Kaminari, the asshole, went to shout Mina and Sero, and fucking everyone apparently as they hastily plated up their food and made their retreat.

“So, do you wanna watch a movie?” Eijirou asked after ducking into his own room for a minute, grinning cheekily as he lifted Rambo First Blood up and waved the DVD around, wiggling his eyebrows.

Katsuki snorted a laugh and rolled his eyes, patting the bed beside him as he picked up his own curry and rice. “Grab the controller. Pervert.” He answered jokingly, finally free to be as horny as he wanted for fighting and action movies.