Chapter Text
Izuku's heart sinks as he searches the scoreboard for his grade. Usually, he's in the top five, but this time- this time he finds his name all the way down at 12, with a C grade. He knew this was coming: he struggled during the test, unable to remember the right formulas for several questions thanks to falling asleep early when he was supposed to study. He wants to blame the unusually rigorous physical training class 3-A had been subjected to that afternoon, but really, he probably should have been prepared for that and studied the night before. Normally, one low grade wouldn't affect him: he can make it up by doing well in the rest of the tests. Unfortunately, Izuku has the additional problem of one Bakugou Katsuki, who has taken their rivalry to new heights by deciding to take Izuku's failures and underperformance as some kind of personal insult. On more than one occasion, Katsuki has cornered him, dragged him to his room, and proceeded to, well, lecture him on how unacceptable it is for All Might's successor to fail. It's kind of... terrifying. And that's why his eyes flick across to where he knows Katsuki is standing, wide with fear.
Katsuki doesn't even have to look at the board to know he got the top grade for this exam; it was a fucking breeze, like how all of his exams always go. His eyes flick down the list... and he immediately feels his blood pressure shoot up as he notices Izuku isn't in the top five... he's not even in the top fucking ten . His gaze follows the list down to find... Midoriya Izuku's name at 12th place. What the fuck. What the fuck!? Katsuki immediately rounds, scanning the crowd for that shitty mop of green hair and- his red eyes lock with wide, terrified green. " Deku - you fuck -!" He stomps up to the nerd, practically growling behind clenched teeth as he grabs Izuku by the front of his shirt and points at the scoreboard. "What the fuck is that!?"
Izuku briefly considers trying to flee. He could probably grab his test, Full Cowl back to the dorms and lock himself in his room before Katsuki catches him, if he used a high enough percentage of his Quirk. He doesn't, though, because he's tried that before, and it only led to him screaming and accidentally launching a mug of hot cocoa into the ceiling when he noticed Katsuki on his balcony, staring at him like some kind of serial killer. No - he's learned it's always best to just get his Katsuki lectures over with. And so he winces, raising his arms to try and shield himself because Katsuki looks about ready to bite his face off. "I-I'll make it up!!" he immediately says. "RIP," Kaminari says, somewhere behind him.
"You'll make it up -!?" Katsuki seethes, barely keeping his composure; in the past, Izuku doing less than excellent on exams has ended in straight up physical fights that Aizawa-sensei would have to break up. But Katsuki manages to keep it together, even though his palms are fucking smoking . "You think I'll settle for a rival who does a shit job and thinks it's fine because he'll fucking- make it up !?? You think that shit's acceptable , huh!?" He takes a deep breath, his rage settling into a quiet fury, yanking Izuku close to address him, their faces inches apart. "Listen up, Deku, here's what's gonna happen: you're gonna come to my room after classes today and we're gonna go over this shit show of an exam you had. Because, clearly, you need some fucking help getting the information into that shitty thick skull of yours!" He shoves Izuku away, baring his teeth, giving Izuku the look : the one that says 'there's no fucking negotiating on this, you better do what I say.'
Izuku's fear gives way to defeat, his shoulders dropping as he looks at his shoes. "Right..." Get it over with, he reminds himself. He just hopes this iteration won't include Katsuki hitting him over the head every time he answers wrong. His impending doom hangs over him for the rest of the day, from collecting his test to the walk back to the dorms with Uraraka and Todoroki. Occasionally, he thinks he might be being a little dramatic - Katsuki's his friend , isn't he? He should be happy to have a friend willing to devote so much of their time to helping him do his best - even if he doesn't frame it that way, that's what this is, right? It's just... something about these lectures makes him feel weird. He's not sure why, but he always returns to his room with his heart pounding, a deep flush to his skin, hair stuck to his forehead with sweat. It's... embarrassing, and the thought of Kacchan noticing, of it being pointed out and having to explain it -- that thought makes him so uncomfortable he almost considers not showing up. He does show up, though, standing outside Katsuki's door before even changing out of his uniform, and lifts a fist to knock, resigning himself to his fate.
Katsuki opens the door instantly, like he was waiting at the ready for Izuku to knock. He glares at the other boy for a moment before stepping aside. "Get in." He slams the door shut as Izuku hurries into his room, letting out a frustrated sigh. "Sit. Here." He presents a chair and looms over Izuku, narrowing his eyes at the other boy dangerously. "How in the fuck, Deku?? Do you think this is a joke?? You like slacking when you're supposed to be All Might's heir, huh !?" He bares his teeth as he stomps over to his own desk, swiping up his exam. "Get your shitty exam out, show me where you fucked up, nerd." He stands there, staring daggers into the other boy.
Izuku attempts to protest, tries to explain how it was an accident, but instead finds himself blushing - already - and dejectedly extracts his exam from his bag. "I..." he starts, setting it on the desk for Katsuki to see. "I-I forgot the formulas... here, and here. I think this was the same one..." he says, pointing out the questions. He feels like he's explaining himself to a parent or teacher, not a classmate, and shame burns in his stomach. Kacchan's right - he really messed up. He could have memorized them days before the test, but he didn't. There's no excuse.
Katsuki leans close, examining the test with utter seriousness. "What the fuck -" He grabs the exam, shoving it in Izuku's face while he points to one of the questions. "You answered the question correctly here, but erased it and changed it to the wrong fucking answer! Deku, what the hell? " He glares, furious, doing his best to not ignite the sheets of paper in his palm. "You're smarter than this, nerd, you wouldn't be my fucking rival and All Might's heir if you weren't. So, what the fuck?? You turning into a fucking slacker or something??" He narrows his eyes. "Don't tell me getting kicked in the head over n' over has made you into a fucking idiot -"
"No!!" Izuku says, his face burning. "I'm not! I... I just... I left it 'til the night before to revise them, I thought I had time, and I... f-fell asleep..." he admits, looking down at his fists, balled in his lap. That feeling is back - the weird feeling, like something inside him is writhing, and he tightens his fists further in an attempt to distract himself, digging his nails into his palms. He has to focus! He has to let Katsuki teach him!
"You-" Katsuki's eye twitches, "fell... asleep!? " He grabs Izuku by the collar, fuming. "You think you can inherit All Might's power and just fucking take it easy?? " He shoves Izuku back into the chair, huffing. "You're pathetic... you can't fuck around Deku! What got you tired out, huh?? Spending your time thinking about Round Cheeks all night instead of studying till it was too fucking late?!" He pulls Izuku's exam back up, squinting at it in disgust. "Fucking hell, I bet Aizawa was fucking shocked to give you this grade..."
Izuku groans with embarrassment and misery, hiding his face at the thought of it, resisting the urge to squirm in the chair. "I-I know!! I know, Kacchan! I'm sorry! I'll do better! I-it was... the training... t-the team exercise, I used all my energy and..." He feels too hot, too restless, too humiliated ... but for some insane reason, he doesn't want it to stop. He kind of... wants Kacchan to yell at him more. To make him think about all those embarrassing things while he just... takes it…
Katsuki pauses, narrowing his eyes as he looks Izuku over, he looks... well, Katsuki would be lying if the flush in the other boy's face didn't make his heart jump in his chest. Somehow... when Izuku looks like this, all pathetic and embarrassed , it just... Katsuki huffs. "Oh?? If that was the case, then everyone would've done a shit job at the exam-! Because we all went through the same training and most of us managed to not get a fucking C on the exam, like a fucking moron!" He paces, frustrated, tightening his hands into fists. "That what you wanna be!? A fucking idiot who can't even become a Pro because he falls asleep thinking of girls instead of taking this shit seriously!?"
"N-no!! That's not it! I wasn't thinking a-about- girls , I was really studying!" he protests, looking up at Katsuki. But he can't hide the tears beginning to swim in his eyes at the facts Katsuki is throwing at him, because he's right. Why was he the only one who performed so much worse than usual? "I... e-everyone else must have... studied already, instead of..." He wipes his eyes, pressing his legs together because this is the worst time for his dick to do... whatever it's trying to do. Somehow, though, the pressure only makes it worse, and he has to suppress a whimper. He doesn't- this isn't turning him on , and he definitely hasn't climaxed to the thought of Katsuki looking down on him and lecturing him before! Absolutely not!
" Bull-shit , Deku!" Katsuki rounds on the nerd, his eyes flashing dangerously. "Don't you fucking lie to me-! We both know you weren't studying, like a normal person!" He seethes, panting and worked up; why the fuck would Izuku ever think this was okay? It pisses Katsuki off... does he not take him seriously or something!? If Izuku is slacking and not giving a shit, then it won't fucking count for anything when Katsuki beats him. "You asshole, do you just not give a shit?! Is that it??" He looms over the other boy, his palms crackling with explosions. "That's it, right!? You're just a fucking moron who can't handle the responsibility of being All Might's heir! So instead, you fuck around like an idiot and don't study your shit like the rest of us!!"
"I'm not lying!!" Izuku yells, leaning into Katsuki's threat, indignant. He's telling the truth, why doesn't Kacchan believe him?! "I was studying! And I do care! I--" he hesitates, recoiling slightly. He was studying that night... but he didn't study the night before, when he should have. The night before, he was fucking around. He remembers it. He spent the evening in the common room with his friends, because... he reasoned that he could study later. "I'm s-sorry," he says, his voice unsteady, trying to cover his crotch with his fists. Not only did he mess up... he's getting off on it? What's wrong with him?!
Katsuki stares at Izuku, temporarily mesmerized by the nerd's face - what the fuck? He feels a familiar stirring in the bottom of his stomach... fuck , he can't deny it, he likes how Izuku looks right now. Those red cheeks, the way he's trying not to cry... Katsuki shakes his head, trying to focus because he's gotta kick the nerd's ass and get him to perform better. "You're not lying!? Fuck off- you know you could'a been studying and you weren't! " He closes the distance between them, pointing an accusing finger at the other boy. "You just don't give a shit!! You're a fucking moron who can't keep up- so you've given up, and all your dumb brain can do is think about fucking girls instead of studying and taking shit seriously ! You're just a fucking idiot !!" He pants, very worked up, staring the other boy down with a serious intensity.
"I'm not thinking about girls!! " Izuku yells back. "W-why are you so fixated on that?!" he says, but almost immediately regrets it. Oh, god. He's so close. He can almost feel the heat coming off the other boy as he looms over him- The tiny, almost inaudible squeak that leaves his throat is involuntary. Oh god, oh god, oh god. It's just like his fantasy, only in the fantasy, Katsuki lifted one of his feet to- to... Izuku's eyes flick down toward his crotch. That, too, is involuntary.
Katsuki's eyes widen, definitely not feeling caught. "B-because it's what your dumbass is doing!" He growls, suddenly defensive. "You piece of shit- you think you can slack off, huh?? I bet it's because this shit's gotten too advanced for you dumb brain and now all you can do is just flail around pathetically while nothing makes sense!" He grabs the other boy's collar again, bringing their faces so close to yell at Izuku. "You're just an idiot ! That's the only excuse for doing such a shit job!"
"I'm not- I-I'm not an idiot!" Izuku says, desperately pressing his palms into his crotch as he develops a real problem, unable to ignore the dirty thoughts invading his mind. This time, he fails to suppress his whimper, attempting to duck his head, blushing furiously. Maybe he is an idiot. Only an idiot would find this kind of thing hot , right? And he can't deny it, he thinks miserably, as every word, every touch goes straight to his dick. He likes this .
Katsuki seethes, shoving the nerd back into the chair roughly. "You fucking are an idiot, if you think you can inherit All Might's power and do a shitty job! You don't give a shit anymore is that it?! You just-" Katsuki freezes, registering Izuku's red face and his… oh . Katsuki eyes Izuku's crotch, very aware of the bulge he's trying - and failing - to hide. For a moment, it's like his brain has crashed, unable to form thoughts beyond what the fuck . "Wh... what the hell?? Are you..." He frowns down at Izuku's crotch with a scary intensity, trying to understand why -
As soon as Izuku notices the direction of Katsuki's gaze, he freezes with mortification. Oh, no. This was a bad idea! He should have left before it got so bad! "I-- Ihavetogo!! " he exclaims, grabbing his test and bag and holding them in front of his crotch as he makes a break for the door.
Katsuki's body moves before his brain can catch up, blocking Izuku's exit by placing himself between the other boy and the door. "No." He stares at Izuku in astonishment as his brain starts to boot back up and - was his heart always beating so fast? - taking a breath to steel himself. What made Izuku react this way? His mind races for answers: was it him yelling? No, it can't be, he yells at the nerd daily and this shit doesn't happen, so what... Katsuki's eyes fall on the test; could that have been it? His own dick twitches at the thought. He takes a breath, because, suddenly, Izuku is in his room with a hard-on and, well... Katsuki would be lying if he said he didn't want to help the nerd out with his boner. He licks his lips, and puts on his best confident grin. "Tch, don't tell me being a failure made you fucking hard , nerd. Did you do it on purpose?" He closes the distance between them, ripping the items out of Izuku's hands and thrusting his palm against Izuku's hard bulge. He can't find it in himself to say he wants to do this, he can only hope the nerd will understand his actions. If Izuku says 'no', then Katsuki will back off, but for now he stares into those wide green eyes with his own hungry reds, hoping, hoping…
Izuku's mouth closes and opens a few times as he attempts to process what is happening. All he knows is that he wasn't allowed to leave, Kacchan is now right in front of him and feeling him up and - is he teasing him? He's not... he's not laughing at him. He's grinning , and that's a little frightening, but he's not calling Izuku gross or throwing him out the window for being a pervert. Does he... is he playing? Izuku searches his eyes for a few moments, before turning his gaze down, blushing deeply. "I-I... I..." he tries, trembling slightly at the sight of Katsuki's hand on his crotch. His dick twitches under Katsuki's palm, and he winces with shame while needing so much more. "I n-need... need Kacchan to teach me to... to not be an idiot..."
Katsuki stares for a moment before his muscles relax ever so slightly because Izuku didn't say 'no.' That means he wants... "Me? Teach you to not be an idiot?? That'll be fucking impossible with your shitty brains." He shoves Izuku back into the chair, eyeing his crotch. "Un-fucking-believable, Deku." He reaches out, grabbing a fistful of Izuku's hair, leaning close to the other boy, smirking down at him. "You really are an idiot. Ya can't do well on a simple exam and now you're just a dumbass who's about to cream his pants because he's a stupid pervert!" He releases Izuku's hair, grinning. "Tch, unless... don't tell me you're wasting All Might's power just to get your rocks off, Deku . You think he wants his heir to be an idiot and a pervert!? Huh!?"
Holy crap. If Izuku's brain was unable to function a few moments ago, now it feels like it's being put through a blender. What is happening?? Katsuki's really just - going along with it? Not only that, he's... he has to know, he must have put two and two together. Is he really... saying all those things because he knows it turns Izuku on? Izuku's heart is pounding in his chest, his face is burning with embarrassment, and his dick is... very hard. He lets out a small noise - something halfway between a whimper and a moan, unable to decide if he should recoil from Katsuki's insults or beg for more. "P-please-" he begins, biting his lower lip to keep it from trembling as he meets Katsuki's eyes with desperation. "I'm sorry! P-please teach me a lesson!"
Katsuki glares down at Izuku, letting out a held breath; all of Izuku's reactions are... well, it's fucking hot . Katsuki feels his own dick twitch at the sight of Izuku so embarrassed and desperate. He's had dreams involving Izuku before, ones that leave him feeling very confused and way too hot. And now... this is really happening, Izuku really wants him to just insult him and make him cry until he comes. Katsuki licks his lips, staring at Izuku the same way a predator would eye its prey. "A lesson, huh? What about: how to not cream your fucking pants!" He closes the distance between them, placing his hand on Izuku's crotch, watching his reaction closely. "Unless you're too dumb to figure that one out? I wouldn't be surprised..."
Izuku can't help it: his hips twitch up into Katsuki's touch, his mind an endless loop of ohgodyespleasepleaseplease. He throws his head back with a gasp before forcing his eyes back to Katsuki. His whole body feels too... aware. It's like every hair is standing on end, every touch is amplified, every reaction impossible to suppress. This can't really be happening! "N-no! I'm not-- I can do it! I'm not- d-dumb- ngh-" Even as he says it, he has to fight the urge to grind into Katsuki's palm, and only partially succeeds.
"Ohh?" Katsuki presses his palm even harder into Izuku's boner. "Then why're you humping my fucking hand like a stupid horny dog, huh?!" He leans in close, their faces inches apart. "You're smarter than a horny dog, right, Deku?" He starts to rub at Izuku's crotch, feeling the contours of his dick through the pants. "Or are you too stupid to keep your pants clean?"
Oh, fuck. Izuku can't tear his eyes away from Katsuki, even as his eyelids flutter half-shut and he practically chews on his bottom lip to try and contain his noises. His hips roll against Katsuki's hand whether he wants them to or not. This is... this is incredible, and Katsuki's insults only make him grind harder. He can feel a damp spot forming on his boxers where the tip of his cock has started leaking. "Aah... hnnn... p-plea... p-please, don't make me- l-let me- p-please, let me come outside!" he cries. Kacchan's hand feels so good - there's no way he'll last much longer, but he can't come in his pants! He's not dumb! He has to show Kacchan he's not dumb!
Katsuki removes his hand from Izuku's crotch, glaring at him. "The fuck are you gonna do about it, huh? Or are you too stupid to even jerk yourself off right now?" He grins, stepping back to give Izuku some room. "Show me, Deku , take your pants off and show me you're not too stupid-" Katsuki bites his lip, loving how quickly Izuku is just... begging for release. This is hotter than anything he could have imagined .
"I'm not- I'm not stupid! I'll show you-" Izuku says, so turned on, so desperate he doesn't think twice: he immediately unbuckles his belt, unzips his pants and removes both them and his underwear completely. Only when he's done does he realize that he's standing not only half naked but rock hard - in front of Kacchan, who is very much still fully clothed. But... Kacchan told him to. He wouldn't have told him to if he didn't want him to do it, right? He bites his lip again, uncertain what to do next. Katsuki told him to jerk off, so... he lowers himself back into the chair, hikes his shirt up away from his cock, and avoids Katsuki's eyes as he begins to stroke himself, blushing furiously. This is so... weird. But somehow, the weirdness of it only turns him on more.
Katsuki folds his arms, watching Izuku closely, feeling a heat creeping up from the pit of his stomach. Holy shit , this is so hot, watching Izuku... jerk off... it's too good . " Faster , Deku, or are you too stupid to do it correctly!?" he barks. "I bet that's it- you're a fucking moron who can't even get himself to come, I wouldn't be surprised if you somehow managed to become that stupid!" He paces around Izuku, his eyes never leaving his dick. "You get C's on exams now, it would only make sense. You gonna admit it!? That you're just a shitty idiot??"
"I'm not!" Izuku says, even as he does as he's told, pumping his length faster, squeezing just a little tighter. "Hnn... I can do it... I can m-make myself come..." It strikes him as he says it that it's so weird, but he can't bring himself to care, instead only beginning to make small noises of pleasure as he feels himself inching closer to orgasm. When he realizes Kacchan's watching him , eyes on his fist as it moves over his leaking cock, he whimpers, gasping for breath. Being ordered to masturbate while Kacchan watches... it's humiliating... and it feels so good. "I'm- I'm gonna- Kacchan, I'm--"
Katsuki's eyes flick up to watch Izuku's face and- holy fuck - seeing the mix of pleasure and humiliation in his features is just... it's driving Katsuki crazy . He can feel his own dick swelling at the sight, and he lets out a held breath, trying to compose himself. "You're gonna what!? Finally fucking come , is that it??" He approaches the other boy, grabbing a fistful of hair. " Do it , Deku, don't keep me fucking waiting, I ain't got all day for this shit!"
Katsuki's words push Izuku over the edge instantly. He cries out, arching his back against the chair as he shoots his load all over his hand, stomach, and shirt, shuddering at the intensity of it. *Ohgod- god - Kacchan- ahh -" he continues to gasp and moan, squeezing and stroking until his cock finally stops pulsing and he slumps back, panting heavily. "Hnn... nnn..." He's so dazed, the reality of what just happened doesn't quite hit him right away.
"Holy fuck..." Katsuki watches, eyes widening as Izuku comes, his own dick very aroused and twitching with need. He just stares for several long moments, his mind soaking up the image of Izuku, panting and covered in his own ejaculate and... yeah, it's fucking hot , okay? He can't help himself, he wants more , he doesn't want to stop... whatever this is that they're doing. It's not exactly sex , but it's definitely arousing, and Katsuki isn't done yet . He approaches Izuku, grabbing his jaw and lifting his head to peer into his eyes. "God, you made a fucking mess -" He swipes a finger over the cum on Izuku's shirt, examining it before stuffing his fingers in Izuku's mouth. "Take your shitty shirt off, nerd, your dumbass got it filthy ."
Izuku remains in a haze until he's grabbed, and makes a muffled, startled noise around the fingers that are quickly in his mouth with - his own cum - god, why is his dick already trying to get hard again?! He just came, but Kacchan just force fed him his own cum and it's so hot his dick doesn't seem to care. He gags slightly on the texture and how Katsuki's fingers push down his tongue, but forces himself to lick them clean while loosening his tie and unbuttoning his shirt, swallowing every drop with tears in his eyes from the humiliation of it.
Katsuki smirks as Izuku licks the cum off his fingers, the tears in his eyes making his cock throb with need. "Hah, you fucking like that, idiot? Huh?" He removes his fingers from Izuku's mouth, stepping back. "Get your shitty ass on your knees-" he unzips his pants as he talks, "and show me how good you can take my dick in your stupid mouth." He pushes his underwear down, revealing his very aroused penis. "Unless you're too much of a fucking idiot? Too stupid to suck someone off, huh?"
Izuku's eyes widen at - well, everything , unable to take his eyes off Katsuki's cock. Is... is this really happening? Kacchan wants him to... Izuku has never done anything like that before, but god , he wants to right now. He drops to his knees, wanting nothing more than to make Kacchan feel good, to show him... "I-I'm not! I'll do it... I'll do a good job, I'm not stupid!" He knows how this works, kind of. It's hard to know exactly what's going on from videos, but doing what he imagines would feel good on his own cock seems like a good starting point. He leans in, trembling slightly, opening his mouth - he's really going to... with Kacchan ... his face burns with embarrassment as he realizes how pathetic he must look right now. Naked, on his knees, about to suck Kacchan's dick while Kacchan remains basically fully clothed... he whimpers, definitely starting to become hard again as he closes his eyes and extends his tongue to lick the tip of Katsuki's cock. He shivers with excitement at the sensation of the hot, soft skin against his tongue, tasting the salt of his precum and beginning to swirl his tongue around the head, exploring the shape, the texture, the smell…
"Nnh-" Katsuki bites his lip in order to prevent himself from making any lame noises while Izuku... holy fuck, Izuku . Katsuki pants, watching as the nerd carefully explores his cock with his mouth, and it feels incredible . "You're not stupid, huh?" He reaches up to grab at Izuku's hair - that seems to be a good move - gripping at the strands but not moving his head in either direction just yet. "If you're not stupid, why are you taking your sweet time, then, huh? Quit actin' like I got all day to teach your dumbass a lesson!"
Izuku moans at Katsuki's goading, immediately opening wider and taking the head into his mouth. "Mmhhn-" He closes his eyes again, pressing his tongue flat against the slit at first, before pushing forward, taking more of Katsuki's cock into his mouth. It's so... it's too much, and he loses himself in it, inching down on Katsuki's dick until he gags, unable to take any more. Izuku squirms - he's so hard again, so fast - and moves one hand up to grip the base of Kacchan's cock, the other between his own legs. He chances a look up at Katsuki, then, pleading with his eyes for praise or insults or both.
Holy shit - whatever Izuku is doing with his mouth, it's fucking amazing , and Katsuki feels his pleasure ramping up as he peers down, making eye contact with Izuku. "Hff- D-deku-" He blinks, noticing where Izuku's other hand is, his eyes widening, doing his best to look pissed . "The fuck -!?" He slaps Izuku's bicep to get him to stop. "I didn't say you could touch your own shitty dick, did I!? Fucking hell , Deku, is it really that hard to follow some simple instructions or what??" He pants, pressing his eyes shut as another wave of pleasure washes over him. "You're so- stupid -"
Izuku whines with protest, but does as he's told, taking his hand away from his cum-slick cock even as it strains with arousal. He's not... he's not stupid... he doesn't want to be stupid- he wants to show Kacchan he's not, by sucking Kacchan's cock better than anyone! He vaguely wonders if anyone else ever has, or if this is Katsuki's first time, too, but finds himself quickly preoccupied with trying to make him feel as good as possible. He lifts his disobedient hand to fondle Katsuki's balls through his underwear, meanwhile beginning to bob his head on his cock, sucking gently, running his tongue up and down the underside and pumping what he can't get into his mouth with his hand. So good... I'm being so good for Kacchan , he thinks, glancing up at Katsuki again. The unbelievably sexy expression on Katsuki's face only makes everything worse (or better), and a needy moan makes his tongue vibrate against Katsuki's cock.
Katsuki pants, forcing his eyes open to peer down at Izuku, holy fuck, the sight is so hot . Holy fuck, he's so close, he can feel it. "Nhh-" He does his best to harden his expression, giving Izuku a firm look. "Since you're such a fucking idiot, you're gonna swallow everything, got it!? Or are you too dumb to even manage that?? H-hahh- oh fuck -" His grip on Izuku's hair tightens, and he forces the other boy's head down, his other hand squeezing his shoulder. Everything Izuku is doing with his mouth is so good, too good , he's gonna- "Fuck- fuck - Deku-!" Suddenly, he's overwhelmed with pleasure, his hips jerking forward as he spills the contents of his cock into Izuku's mouth.
Izuku's insides feel like they're burning he's so turned on; he has to... swallow? He... he wants to, right? If he changes his mind, he's pretty sure he can use his Quirk to stop... whatever it is they're doing. Is this sex? Is- is he having sex with Kacchan?! The thought makes him moan as his head is held on Katsuki's throbbing cock, his mouth stretched wide, and he struggles to suppress his gag reflex - focus, focus , he can do it! He swallowed his own, he can swallow Kacchan's cum, too! But when Katsuki's hips thrust forward, hitting Izuku's throat, he finds himself choking , eyes snapping wide, completely unprepared, and some of Katsuki's cum spurts out between his lips, dripping down his chin even as he tries to swallow the rest. It's- there's so much, and the texture and taste makes his eyes water, tears trailing down his cheeks.
Katsuki keeps his eyes open as long as possible while he comes, watching the tears run down Izuku's cheeks, fuck , it's too much, Izuku is so good at this, what the hell... But the choking noises pull him out of his pleasure, and he yanks his cock out of Izuku's mouth, one final spurt of cum hitting the front of the other boy's tongue. "Hahh- hah, shit, Deku-" He pants, dazed, taking hold of Izuku's cheek and forcing him to look up, peering into his eyes, trying to determine if Izuku's hurt , if he went too far ... he doesn't want the nerd to do anything he doesn't want to…
Izuku drops his hands to his knees, panting and coughing with both exertion and the need for air as cum drips from his mouth and chin to the floor. He wipes his chin and cheeks with the back of his hand, and meets Katsuki's eyes with an apologetic smile. "S-sorry... I t-tried my best..." he says, and it's true. "I-I'll do better! Next time... I'll do better, I... i-it was my first... time..." he looks down at his fists on his knees, the absolute mess covering his stomach, cock, and now floor. He failed... he didn't obey Kacchan's order... "L-let me- I'll make it up to you!" he says, looking up at Katsuki with determination and desperation.
Katsuki stares at Izuku - the nerd doesn't seem to be in pain or expressing he didn't like what he just did... Katsuki lets out a sigh of released tension. How the fuck was that his first time , his mind offers, staring down at Izuku with wide eyes, stunned for a moment before his brain catches up with what Izuku is saying. "Make it up to me, eh?" He puts on his best confident smirk, his gaze flicking down to Izuku's hard dick and the cum on the floor. "Guess I'll give you a simple enough task for an idiot like you..." He grabs Izuku by the hair, forcing his head down to the floor where the cum dripped. " Clean up the mess , Deku, with your shitty mouth. Lick it up, since you were too stupid to just swallow-"
Izuku makes a noise somewhere between a whimper and a moan at Katsuki's command. "Y-yes, Kacchan!" he says, his voice giving away how embarrassingly turned on and enthusiastic he is. Oh, fuck, he thinks, as he shifts his legs slightly, spreading them wider, bracing himself against the floor with his forearms, and opens his mouth to comply. It's so humiliating, his ass in the air, naked , his hard cock hanging between his legs... it feels so good. He's surprised he doesn't come on the spot when his tongue meets cooling cum, trembling as he laps it up... he gags when the slimy texture meets the back of his mouth but forces himself to swallow anyway.
Katsuki stands, stepping back to admire his work: Izuku, on all fours, nude, ass in the air, licking his cum off the floor . Katsuki huffs, pacing around the boy, his eyes falling on the forgotten exam on the floor. Right. This was about Izuku's performance... Katsuki frowns, the shitty nerd can overthink shit and get all nervous , and then his performance suffers as a result. And it pisses him off every time. If doing this might help him... Katsuki's gaze flicks to Izuku's bare ass, licking his lips, getting an idea. He snatches up the exam, crouching in front of Izuku, holding up the test. "Deku, you keep doin' shit to prove you're not an idiot, but I still see that shitty exam grade here and I'm still not sure how in the fuck you let that happen." He glares at the other boy. "You think it's okay to waste All Might's power, huh!?"
Izuku can hear Katsuki walking around, looking at him from all angles. He feels completely degraded, lower than low, but at the same time... his cock oozes precum as he cleans up the remaining drops of Kacchan's cum. When Katsuki moves in front of him, he pushes himself up onto all fours, staring at the test and Kacchan's unhappy expression briefly before looking down with guilt. "N-no... I don't! I don't think it's okay! I'm... I'm s-sorry... I had the right answer, b-but... then I started worrying I had the two formulas mixed up, and I... I s-swapped them..."
Katsuki narrows his eyes. "You fucking asshole - you got all nervous and shit, didn't you?? Like an idiot !" He raps at the test with his finger, emphasizing the red ink circling the final grade. "You gonna pull that shit when you're a Pro, huh!? Get all nervous and then make the wrong decision!?" He stands, dropping the test to the floor with an angry huff. "You think anyone is gonna give a shit when I beat you if everything you do is a massive fuck up??" He paces around, taking his place behind Izuku, glaring down at his ass. "What's it gonna take, huh?? What's it gonna take for you to get it and stop being stupid!? Because I don't think you understand how not okay this is, Deku -" He crouches down, grabbing Izuku's ass roughly, pressing his fingers into the firm flesh. "Maybe I have to beat it into you..."
Izuku winces with every statement, unable to meet Katsuki's eyes. He half moves to sit up when Katsuki walks around him, but quickly realizes Kacchan didn't tell him to move , and resumes his position on all fours, whimpering when Katsuki touches his ass. Oh, god. Is he- is he really going to- hnnng. Izuku's dick twitches, and he shivers with anticipation. "P-please," he says, immediately. "Please teach me a- a lesson."
Katsuki grins, kneeling behind Izuku. "Yeah, of fucking course that's what it's gonna take. You always need something fucking extreme to happen to you before you finally- finally - learn your fucking lesson!" He pulls his hand back, smacking Izuku's ass. "Like getting your body all fucked up - huh !?" He hits again, watching as Izuku's ass turns red from his blows. "Is that it!? You're just an idiot who's gotta get fucked up to learn anything!??"
"Aah!" Izuku cries out at Katsuki's first strike. Holy shit! Holy shit! is all his brain has to offer, because Kacchan is spanking him. He doesn't know how to begin to process it except - except that he's painfully hard, his back is arching to push his ass up, his legs spreading for more as his top half slowly sinks closer to the floor. "Ah! Mmm- yes- y-yes! Please!!" he says, the words completely bypassing any filter that might have normally been in place.
" Say it , you fucking idiot!" Katsuki hits again and again. "Say how you're just a dumbass who can't even do well on a fucking exam!" Katsuki keeps spanking, getting a little carried away in how hard he's hitting the raw skin.
Each hit sends Izuku closer to the floor, yelping, tears springing to his eyes and drool beginning to trickle from his mouth at the sharp pain each slap sends shooting across his already stinging skin. In one of the brief moments between strikes, he realizes the side of his face is pressing against his test, the grade directly in his field of vision. He whimpers, trembling, cries out again at the next hit. "I'm an idiot!!" he says, yelling it loud enough for Kacchan to hear over the loud slapping noises. He would say anything. "I'm a d-dumbass who can't do anything!!"
"You're so dumb you can't even learn shit like normal! You need this shit, like a fucking freak-!" He hits Izuku's ass again, panting, staring down at the red skin. God , that looks good, he never thought it would but... well, no, that's a lie. Katsuki has definitely checked out Izuku's ass, especially during their weekly one-on-one sparring sessions, where the two of them end up pinning each other in... interesting positions. Katsuki feels his face heating up just thinking about it... and now , Izuku's bare ass is right there , he's presenting himself to Katsuki to get fucked up. And Katsuki loves it. Some part of him hopes it bruises, that Izuku will feel the ache in his ass when he sits down in class tomorrow and be unable to not remember that Katsuki did that to him. His dick twitches at the thought, and he can't deny it's an arousing idea. He licks his lips... maybe he can hit him harder to make sure... "You know what, Deku , you're such a fucking idiot that I don't think a regular beating is gonna get through to you!" He summons his Quirk, letting the popping noise of his explosions fill the air. "Is that true?? Do you need more than just a beating so your dumbass learns a lesson!? Huh!??"
Izuku lifts his head to shoot Katsuki a shocked look, teary-eyed, sweaty and red-faced. He watches the flashes of light in Katsuki's palm, and groans, pressing his face down into his test. He can already feel the skin on his ass burning, stinging dully, and his cock throbs with arousal at the thought of Katsuki's explosions sending bursts of hot pain through already sore skin. "Y-yes! Please! Please teach me! T-too stupid, n-need... more... please..." he says, the self-humiliation sending waves of hot pleasure to his groin.
That's all Katsuki needs to hear, he doesn't wait a second longer before placing his sizzling palms on Izuku's ass and setting off a small explosion onto the raw skin. "Like that!? " He removes his hands from Izuku's ass, looking over the skin with satisfaction. "Or do you need more?? Have you fucking learned anything yet?? What have you learned, moron!?"
Izuku yelps , his entire body jerking away from the pain automatically before relaxing back into position, chest heaving. He sobs, wet tears finally falling onto paper, and it's... a relief. His mind is fog, vague concepts and shapes of things that might be words or thoughts but when he reaches for them, they dissolve into the mist. "Learned... learned..." he repeats, struggling to scrape together anything more. "N-not... d-don't get... nervous..." he says. The points of impact on his ass throb, so hot he wonders if Katsuki can feel the heat.
" Yeah , that's right- what else? " Katsuki's hands spark again, looking for any reason to hit the nerd with his Quirk one more time. "How the fuck are you not gonna get nervous, asshole?? Or are you too stupid to figure that out!?"
Izuku moans, shifting, trying to find a comfortable position for his limbs - his knees have slipped so far apart that his dick is almost touching the floor. "I'll... I'll..." he starts, searching his feelings. If there's anything he thinks he won't be able to feel for the next twelve hours, nervous is probably it. He gets the feeling he'll barely be coherent for the rest of the evening. "T-this... I'll- I'll ask Kacchan for... this ..."
Katsuki freezes, not expecting that answer from the nerd... he'll ask Kacchan for this ... Katsuki considers it, the idea of dragging Izuku into his room not to just lecture him, but to fuck him up as well? To make the nerd come and to get sucked off and whatever else Katsuki could come up with... it's so fucking tempting . How can he say no? He'd be lying if some part of him hasn’t been wanting this for... a fucking long time. Katsuki lets out a held breath, pressing his palm into Izuku's hot skin, feeling up his ass. "You'll ask me?! " He can't help but grin. "Y'know, nerd, that's the first smart thing you've said all day..." He cups Izuku's ass in his palm, feeling the hot skin, trailing his fingers down his crack and touching his balls.
Izuku feels the precum leak out of his cock at Katsuki's touch, moaning long and loud, the concept of holding back left behind a long time ago. He wiggles his hips slightly, searching for more, needing more, and peers back at Katsuki over his shoulder, giving him a wobbly smile. "Y-yeah... yeah, smart... I'll be s-smart for Kacchan... b-because Kacchan h-helps..."
Katsuki's dick throbs when he sees Izuku's face, holy fuck , when did the nerd get so... hot?? He lets out a held breath, suddenly needing Izuku in a way he's never experienced before. He teases Izuku's ass, knowing exactly what he wants now... he stands, moving to crouch in front of Izuku, taking hold of his jaw and forcing him to look into his eyes. "I help huh??" He grins. "Maybe... but I bet you're still too stupid to take my dick up your ass." He gives Izuku a sly look, challenging him.
Izuku feels like he probably shouldn't want that as much as he, apparently, does. He suspects he does because his heart immediately starts pounding in his chest, a full-body flush spreading across his skin, his mouth dropping open in a low, near silent moan, his hips shifting. "K-Kacchan..." A part of him wants to lean in and kiss him, but something about the whole situation makes him feel like this isn't a kissing kind of... thing. Whatever this thing even is. Friends with benefits? Are they... friends with benefits now? Kacchan seemed okay with him asking for this again, but only as a way to help him perform better... so that sounds right. Whatever it is, Izuku isn't about to stop. "I-I can do it," he says. "I'm not stupid. I can do it, I can take it," he repeats, a little louder, worried he might have sounded uncertain, still catching his breath from the spanking.
Katsuki grins, releasing Izuku's jaw and standing. "Tch, prove it nerd! Prove you're not stupid! Get on the fucking bed, now -" Katsuki starts undoing his own shirt, shrugging it off, suddenly feeling way too hot . He marches over to his drawers, pulling out his bottle of lube - he got it a while ago when he was trying to experiment with his own ass. But now... he's gonna use it with Izuku. Izuku ... he glances back at the nerd, his heart pounding fast in his ribcage, suddenly very aware of the heat in his face. His aroused dick throbs , sending a shiver up his spine. Katsuki puts on his best confident smirk, approaching the bed and Izuku with the lube in hand - he's vaguely aware of how this needs to go, he knows he can't just stick it in without prepping the nerd's ass first. "I need to get your shitty ass ready, or are you too stupid to even do that?"
Izuku gets on the bed immediately, unsure of how he should be positioning himself until Katsuki joins him. "N-no!! I can do it!" He immediately gets on all fours, lowering his chest to the bed, leaving his ass in the air, and reaches behind to spread himself wide. "G-get me ready, please!"
It strikes him briefly just how desperate he must look, just how dirty, spreading his ass to get- ready to take Kacchan's cock. He's played with his ass before, but he didn't dream he'd be having sex that way so soon, if ever. He didn't think he'd be having sex so soon at all , and with Kacchan? He almost can't comprehend it, but he's comforted by the part of his psyche that tells him it's right. This feels right.
Katsuki approaches the bed, climbing up behind Izuku, opening the lube. "Get you ready , huh?" He pours some lube onto his fingers, rubbing it around until he's satisfied they're slippery enough. "Just relax , Deku- unless, are you too much an idiot to even do that??" He doesn't wait for a response, pressing a slick finger up against Izuku's hole, huffing with arousal. He presses... watching as it enters, biting his lip with concentration, pushing his finger as deep as it can go. "How's that feel, idiot?"
Izuku trembles with anticipation, listening to the pop of the lube being opened, the slick sounds of Katsuki spreading it over his fingers. Kacchan's... he's really going to have Kacchan's fingers in his ass. He tries his best to comply, willing himself to relax - relax, relax, relax! - before moaning as the first finger sinks in fast . He can't help it - he clenches around it, whimpering, holding himself still with the hands on his cheeks. "Aah- ah- g-good!! Feels good!" he says, because it does - when he does it himself, it usually doesn't feel like much until he strokes his prostate... but being stretched open, his vulnerable, tight hole penetrated by someone else ... he would happily do this every time he has sex for the rest of his life.
Katsuki narrows his eyes, concentrating, prepping his second finger. "Good? Then you won't mind being stretched wider, huh?" He inserts the second slick finger, huffing as he watches Izuku's hole clench around them. God , this is so fucking hot... he never imagined putting his fingers up someone's ass - though, this isn't just anyone, it's Izuku - would be so... arousing. His dick twitches, leaking precum, in need of stimulation. He ignores it, focusing on Izuku and his ass and... he moves his fingers deep into his hole. "And that? How's that, nerd?"
"Ahh!!" Izuku cries, back arching, overwhelmed by the speed of it. "P-plea- p-please! Kacchan- please- f-fuck me- m-move them-" he pleads, needing Katsuki to thrust his fingers and get him used to the stretch before he can even think of taking more. "Hhhhnnnhh..." he moans, feeling himself fall apart, piece by piece. Katsuki's disassembling him, stripping him of everything until he's not the hero Deku, not All Might's successor, but just Izuku , naked and debauched and spread out to give and receive pleasure.
Katsuki pushes his fingers deeper into Izuku with surprising care, moving them gently. "Keep it together, Deku..." He readies the third finger, pressing it at the entrance before watching it slip into Izuku's hole. He pants, so aroused by just this , the sight of his own fingers up Izuku's ass being so incredibly hot that his own dick throbs with need, leaking precum onto his bedding. "Hff... Deku ..." He watches as his fingers stretch Izuku's ass wide. He pushes deeper, making sure to lube up Izuku's hole, getting it ready for... "Think that's enough, nerd? Or are you still too dumb to take my dick!?"
Izuku whines, high-pitched, trying not to sob at the burning stretch of three fingers in his ass. "Ahh! Ah-" He manages to peer back at Katsuki over his shoulder, thighs trembling. "K-Kacchan-" Katsuki must really want to fuck him, stretching him out so quickly... but he's not sure he can take Katsuki pounding into him just yet. When he thrust into his mouth earlier, Izuku choked . "W-wait- Kacchan-" he says, waiting for the other boy to look at him before continuing. "I... I want to be on top." That way, he'll have control over the pace.
Katsuki narrows his eyes, staring at Izuku as he considers it, and fuck , it's fucking hot, his dick twitching at the thought. " Fine. " He shoves his pants and underwear down, kicking them off his legs as he climbs onto the bed. "Here, Deku-" He grins as he positions himself onto the mattress, opening the lube again and pouring it over his stiff dick. "There... it's ready, Deku... unless, you're too stupid to put it up your own ass!" He stares at Izuku, his heart pounding in his throat, his muscles tensing with anticipation at having Izuku climb over him and take his dick up his ass.
Izuku can't help licking his lips at the sight of Kacchan's dick - glistening with lube, ready for him. He has to brush aside thoughts of taking it into his mouth again - later! He can do that again later! "N-no! I'm not stupid!" he says, moving up above Katsuki on all fours. He hesitates briefly when they're parallel, getting lost in Katsuki's flushed face, the way he tries to look confident but underneath that... underneath that, Izuku spots the vulnerability, the split-second twitches that give him another glimpse of that face Katsuki was making while he sucked his cock. The urge to kiss him surfaces again, and Izuku has to force himself back, sitting up on his knees, positioning his ass over Katsuki's erection before reaching back to guide it to his hole. "I'm not stupid... I c-can do it... I can take it!" he says, wiggling his hips to get the tip in place - and begins to sink down. The pressure is... incredible , Katsuki's cock slowly stretching his hole as it begins to slip inside. " Ah... " he breathes, throwing his head back as he slowly, slowly sinks further.
Katsuki holds back a moan as Izuku sinks down over his cock- fuck - this feeling is amazing, he never imagined he'd be doing... this with anyone but... right now, in this moment, he's overwhelmed with the good feelings flooding his system. "Hahh- hahh- fuck- D-deku-!" The pleasure he's feeling right now is insane , he never thought he could feel this way with anyone. He cracks his eyes open, peering up at Izuku. "Holy shit - Deku-" He watches as his dick sinks deeper into Izuku's hole, though the view is obstructed by Izuku's thighs and cock. Izuku is really doing it- he's taking Katsuki's dick up his ass, and he's handling it like a fucking pro , what the hell…
"S-still an idiot...?" Izuku says, grinning unsteadily, muscled thighs trembling either side of Katsuki as he holds himself steady about half way onto his cock. He only manages to hold that position for a few moments, though, before moaning, moving one hand to Katsuki's torso and the other to tease his own leaking cock as he sinks further. "S-'sbig... Kacchan's- b-big- feels good-" he says, not really caring if he's talking nonsense. He feels like he's being split open, Kacchan's dick stretching him wider than he ever imagined anything stretching him. But he can't stop- he won't stop! He's not stupid, and he'll ride Kacchan's dick to show him!
"Nn- nnhh -" Katsuki grips at his bedsheets, holding back moans. "D-deku- holy shit -" He blinks his eyes open, peering up at Izuku blurrily, smirking despite feeling overwhelmed with pleasure. He notices Izuku's hand on his dick- oh fuck no , his brain offers, and Katsuki immediately surges forward, moving the nerd's hand away and replacing it with his own. "Y-you say you're not an idiot, huh!? Cos you can take my dick?!" He pants, pumping his fist around Izuku's hard cock, trying to keep his composure despite drowning in pleasure. "Then say it -!" He gives Izuku a fierce glare. " Say it Deku -!! Say you’re not an idiot!!" He yells, completely giving up on being discreet, thrusting his hips forwards.
"Ahh!!" Izuku moans as Katsuki thrusts into him, thighs connecting with his ass as he sinks into the base. "Aah--" His head lolls back again as he loses it to the pleasure- Kacchan's hand feels so good around his cock, Kacchan's cock feels so good in his ass, filling him up, and he begins to move, lifting himself up before sinking down again with a moan. "I- I'm not an idiot!! I can take Kacchan's cock!!" he cries, repeating the motion, this time sinking faster, thrusting down onto Katsuki's dick.
" Louder -!" Katsuki pants, feeling so intense - "Say it LOUDER , Deku!" He can't help throwing his head back into the bedding because- holy shit - this is incredible - he never imagined anything would feel so good around his dick, let alone Izuku's fucking ass . He cracks his eyes open, peering up at Izuku's face, grinning up at the nerd. "Y-you're amazin g- say it Deku- SAY IT!" Katsuki's volume control has definitely been thrown out the window, only wanting Izuku to tell him what he wants to hear; which is how incredible Izuku is, because he is incredible, he's amazing -
"I'M AMAZING!" Izuku yells, now bouncing on Katsuki's cock. It feels so good- it feels amazing , his hole no longer clenching, fucked loose, and he lets out a loud, desperate moan when it finally hits the spot inside that makes his dick jump in Katsuki's fist. " I'm not an idiot!! I'm amazing!! I'm amazing!! " he repeats, slamming down onto Katsuki's cock so that it hits that spot again and again, moaning non-stop. "Kacchan, Kacchan, Kacchan, plea- s'good- close- Kacchan!!"
Oh, holy fuck- Katsuki can't even think straight for a moment as Izuku slams down on his dick... it's so good. "F-fuck! S-say it- Deku- amazing -!!" Katsuki feels himself getting overwhelmed by the pleasure coursing through his system, sending electric vibes up his spine. He squeezes Izuku's cock in his palm, trying to focus on helping the other boy, starting to clumsily thrust his fist around Izuku's length. "Hahh- hahh-" He thrusts his hips upward into Izuku's ass; he never imagined this would feel so good... not that he was planning on doing anything like this with someone else, he just... never knew Izuku's tight ass around his cock would feel so amazing . It's amazing because it's Izuku - Izuku is so incredible, he can't deny it any longer... "Nnh-! D-deku- Izuku - amazing- so amazing- ohh, fuck -" His hips thrust up again as he feels his pleasure about to overflow, he's so close - " Izuku -! I'm gonna-!"
It only takes a few more strokes before Izuku comes, dropping down onto Katsuki's cock one last time before he's crying out with pleasure, his dick pulsing in Katsuki's fist, spilling hot cum onto his stomach. "Ka-Kacchan- nghhhn! " He's incapable of forming coherent thoughts, his hole clenching, spasming in time with his orgasm. "Ahh- ahh- ahh- " Holy crap- holy crap , how can he come this hard when he just came less than twenty minutes ago?! He even manages to draw it out longer still, slowly rising on Katsuki's dick before sinking down just as slow, rubbing Katsuki's cock directly against his prostate. "Oh, god ," he moans, a final dribble of come leaking out of his dick before he slumps, only just managing to catch himself with his hands on Katsuki's chest, gasping for breath.
Katsuki doesn't last much longer, biting his lip to avoid crying out as he comes, spilling every drop into Izuku's ass. "Oh fuck - hahh- Izuku ! Amazing-! Izuku so amazing !" He doesn't even really register what he's saying, just crying out whatever feels right in the moment, lost in pleasure. Izuku's ass feels so good as he comes, his dick milked of every drop of cum as Izuku bounces over it. As soon as it's all over, Katsuki is panting, splayed out on his bed, Izuku above him. He peers blurrily up at Deku, reaching a hand up to touch his cheek. "Izuku..." He wraps an arm around the nerd, pulling him against his chest, wanting him close in his post-orgasmic haze.
"Kacchan..." Izuku blinks hazily at Katsuki as he reaches for him, and gives him a wobbly, but absolutely genuine, warm, appreciative smile before allowing himself to be pulled against his chest. As soon as he's there, he closes his eyes, humming vaguely against Katsuki's skin. His brain feels like mush, warm, tingly feelings dancing across his skin, and Izuku thinks he'd be pretty happy laying here for hours.
That is, until post-nut clarity hits.
At some point, he groans as Katsuki's softening dick slips out of his hole, rewarding him with warm cum dripping down his crack. He reaches back automatically to try and stop it when it suddenly hits him: he just had sex. He had anal sex. He had anal sex, with Kacchan. And he immediately turns back to the boy under him, cheeks darkening as it all comes back to him. Sucking Kacchan's cock. Licking his cum off the floor. Begging for Kacchan to finger his ass. And did Kacchan- did Kacchan call him Izuku?
"Um," Izuku says, with an awkward laugh. "That was... uh. W-was it... good... for you, too?"
Katsuki blinks up at Izuku, frowning slightly. "Yeah... yeah, it was good, Deku." He stares at the other boy, a heat creeping up his neck as the reality of what they just did slams into him. "And you? Do you need any ice or whatever?" These questions are easier to ask instead of discussing what the fuck just happened and how they feel about each other after all that. He sits up slightly, keeping the other boy in his lap, peering at him. "You..." Katsuki's mouth twists as he tries to find the words. "You... you never said to stop, so... you liked all that?"
"Um. Y-yeah? I- s-sorry. I didn't mean to- I mean-" Izuku says, struggling, feeling his face heat up with embarrassment, averting his gaze. "I didn't mean to- to make you do weird things..." Izuku feels himself slowly becoming incredibly aware of his nakedness, the cum smeared on both their stomachs, the cum oozing out of his ass - oh, god. He immediately moves a hand to catch it before it ruins Katsuki's sheets, failing to realize they're probably already in need of a wash anyway. "T-tissue- I need tissue!"
Katsuki reaches over and plucks some tissues from his bedside table, offering them to Izuku. "Here." He grabs some more for himself, wiping at the cum on his stomach. He glances back at the other boy, narrowing his eyes. "Deku..." He reaches up, grabbing Izuku's jaw and forcing him to meet his gaze. "I thought we just did all that shit so you wouldn't be a nervous wreck." He releases the other boy's face, flopping back into his bed with a sigh. "It was good, Deku... and you said... you said asking me for it again would help you not be a fuck up..." He glances back at the other boy. "Is that right? This shit made you feel relaxed?"
Izuku accepts the tissues, immediately placing one at his sore hole, and flushes deep when Katsuki touches him, swallowing. Oh, god. He's sexy! He stares, dazed, as Katsuki flops back onto the bed, blinking at him stupidly. Katsuki... doesn't think he's gross? He- he really wants to do it again? "Um," Izuku says, looking away, and nods slowly. "If... if that's... okay with you. It was... nice. I didn't feel so... stuck, you know? Sometimes I get stuck, thinking about things, or feeling a certain way, or... worrying about something. Sometimes I worry so much I can't sleep," he says, with a small laugh. "I... I feel like I could go to sleep, now, though..." He pauses. "You... you're really okay with it?"
Katsuki feels a pressure building in his chest as Izuku speaks, though he can't identify what it means. Instead he fixes Izuku with a serious stare. "Yeah I'm okay with it- if that's what you need-" He reaches up, grabbing Izuku by the shoulders. "But, Deku ... you're supposed to do some kind of check in after... doing this kinda stuff, where you get hit n' shit. How's your ass?"
Izuku's eyes go wide, blinking with confusion at the contact. "Wh- oh! Um," he says, looking down at himself over his shoulder before realizing that really isn't an effective way of getting a look at his ass. Instead, he reaches around, feeling the skin, pressing slightly, wincing when he hits a particularly sore spot - probably where Katsuki used his Quirk. "It's okay. If... you mean the outside part, that is. The other part is, uh. S-sore. I've never had.. anything that big..." he trails off, blushing as he remembers how it felt with Kacchan's cock in his ass. "A-anyway! I can't see where you... h-hit me... very well, uh- d-do you want to... make sure it's okay? Or something?" It's awkward, but Izuku is starting to feel better knowing Katsuki enjoyed it - and wants to do it again. His heart does a weird kind of leap at the thought.
Katsuki releases Izuku, giving the other boy an unimpressed look. "You're definitely gonna bruise, if that's what you're worried about. You think my Quirk is some weak-ass shit??" He smirks, starting to unwind slightly, fixing Izuku with a dead serious glare. "You're never allowed to get a fuckin' C again or I will fuck you up, got it!?"
Izuku grins back at him. "Right! I won't!" He's amazing, after all, isn't he? That's what Katsuki was saying, and if Katsuki says something nice, he must really mean it. He keeps grinning stupidly at the thought. Kacchan said he was amazing, and called him Izuku. He's also kind of excited about the bruises - every time he feels them, it'll remind him what Kacchan said, and how good it felt... and, well, if Kacchan wants to fuck him up for less, he wouldn't be opposed to it. He's about to open his mouth and say so, when a knock at the door makes him almost jump out of his skin.
"Uhh, guys!? You're not fighting again, are you??" Kirishima's voice comes through the door, along with another knock.
Katsuki wordlessly grabs Izuku by the upper arms and maneuvers the boy off his lap and onto the bed. "Stay there." He orders, before marching over to the door - because Bakugou fucking Katsuki runs from no man and he's not a fucking wimp who yells back through a shitty door - he doesn't bother putting on any clothes on, swinging the door open and glaring daggers at Kirishima. "Fuck off, Shitty Hair, we weren't fighting!"
Kirishima looks like... well, he definitely looks surprised, his wide eyes flicking between looking at Katsuki's face and his junk, taking a couple cautious steps back. "R-right! Just checking in, because... I thought I heard your Quirk, dude..." Kirishima pauses, flashing Katsuki a sharp grin. "Hey! I didn't know you and Midoriya were dating!"
"We're not dating."
Kirishima's smile falters, frowning. "Wait-"
"Bye." Katsuki doesn't wait for Shitty Hair to respond, slamming the door in his face and turning around with an annoyed sigh. "Fucking idiot can't mind his own business."
Izuku makes a very high-pitched, alarmed noise when Katsuki throws the door open, immediately pulling up the sheets to cover his crotch, using the other hand to hide his face. Oh god oh god oh god, he thinks, trying to act casual - what does that even look like?! He's naked in Kacchan's bed - before he hears his name. He was kind of hoping he had spontaneously turned invisible, but since it's clear he has not, he gives Kirishima a nervous smile and a small wave.
Izuku sighs with relief when Katsuki closes the door, grabbing one of Katsuki's pillows and bringing it up to hide his face again as he flops onto his back with an embarrassed groan.
Katsuki gives Izuku a look. "The fuck are you doing?" He stares at the other boy on the bed for a few moments before glancing around his room, his gaze falling on Izuku's clothes, his exam and backpack. Right. Katsuki goes to his drawers, pulling out a casual black shirt and tossing it at Izuku. "Here, you can wear this since you got fucking cum all over your uniform."
Izuku finally braves showing his face again when he feels the shirt land on his stomach, placing the pillow aside before sitting back up. Oh. That's right. He did that. He blushes at the memory - he seriously came all over himself with Katsuki yelling at him... and now he's going to have to walk back to his room wearing what is obviously one of Kacchan's shirts - black, one size too big for him - with his uniform pants. God, he hopes no one asks.
"Thanks, Kacchan," he says, pulling on the shirt and getting to his feet to retrieve his belongings. His eyes keep wandering over to Katsuki, taking in his muscles, his ass, his arms ... he has to remind himself to keep his mind out of the gutter, focusing instead on pulling his pants back on. Did he just- never notice how sexy Kacchan has become?! Why is this happening all of a sudden?!
But, when he really thinks about it, it's not really sudden. He's been feeling weird whenever they train together for a while, his heart going crazy whenever Katsuki pins him, presses their bodies together, grabs his limbs or his hair. Maybe... maybe he noticed a long time ago. It just took him this long to admit it.
After he's dressed, he stands there awkwardly for a moment. "I- I guess I should, uh..."
Katsuki changes into his own clothes while Izuku does, eyeing the nerd while he collects his things. He can't really think of much to say, images of what they just did flashing through his mind instead. Some part of him protests at not knowing when they'll do this again, because... well... Katsuki definitely liked it. Although... they probably need to establish some rules to make it more safe for next time. He looks up at the nerd, having gotten lost in thought. "Right." He stares at Izuku with a complicated intensity, for the first time in his life feeling genuinely confused about how he feels about Izuku. He fixes Izuku with the best grin he can manage. "I better not catch you slacking off! And if Shitty Hair goes to you for any details you don't breathe a word , got it!?"
Izuku picks up his bag, returning Katsuki's grin. Despite how... well, embarrassing a lot of the things he did tonight were, the fact that Katsuki isn't drawing any attention to it - if anything, he seems happy about it - puts him at ease. The only real worry he has is, well... He laughs, and looks down at his feet, shifting awkwardly.
"I just feel bad that he got worried..." he says, "a-and that we were so loud. Oh god - do- do you think anyone else heard?" He stares off at nothing in particular, mortified. "I got carried away..."
"Yeah, you did. But, whatever... people will probably think we're just fighting. Don't worry about it, alright?" Katsuki gives Izuku a grin. "And if they do hear us, fuck 'em. It's none of their business anyway. I'll fucking kill them if they press us on it." He shifts, watching Izuku, suddenly very aware of how hard his heart is beating in his chest. "Look, take it easy. If anyone gives you any shit, I'll kick their ass."
Izuku knows Katsuki well enough to know what that means: he is, in his own way, saying he cares, and that makes Izuku smile. "Thanks, Kacchan. But... please don't really kick anyone's ass," he adds, laughing. "I'll be okay! I promise." He turns to leave, before hesitating. "And if I get nervous," he says, fidgeting slightly before shooting Katsuki a smile, "I'll come find you."
Katsuki smirks at the nerd, folding his arms and looking confident as Izuku turns to leave. "I'll be waiting, nerd."