Work Text:
The first time Izuku and Katsuki kiss is in Recovery Girl's office after a terrible fight against a gang of underground villains, approximately six months before graduating.
Izuku is lying in bed, his body covered in bandages and numb from the antibiotics, trying to piece together what he remembers about the outcome of the fight.
Suddenly, a noise brings him out of his thoughts. The door swings open aggressively, banging loudly against the wall, and Katsuki is rushing to him, grabbing him by the collar of his hospital gown and kissing him on the mouth.
"Don't you fucking ever think on dying on me, nerd."
Another kiss follows, a soft peck this time.
"Don't pull that shit ever again."
And then he's resting his forehead against Izuku's, both their chests heaving hard. "Okay?"
Izuku's heart threatens to beat out of his ribcage.
"O-okay, Kacchan…"
Maybe the medication was messing with his head, after all.
𐔌՞. .՞𐦯
The first time they make out is after a sparring session. Or during.
They're in the gym, trying out one of Izuku's new kicks. It's already late, with the few classmates who were sparring like them having already headed to the lockers.
Izuku has managed to pin Katsuki down onto the mat, trapping both of his arms right above Katsuki's head. He's panting from the exertion, and a drop of sweat falls from the tip of his nose onto Katsuki's face.
"Look at you, nerd, acting all high and mighty," Katsuki says teasingly.
"I… I have… I have finally managed to… land a hit on you… af-after almost two hours, Kacchan… Let me bask a bit in…my glory." Izuku says in between pants, almost out of breath.
"Tsk," Katsuki flicks his wrist and grabs hold of Izuku's forearm, catching him by surprise. With a swift motion, he changes their positions so he's the one straddling Izuku's lap from above.
"Don't count your chickens before they hatch, nerd," Katsuki says, looking down at Izuku with a blinding smirk on his face.
He remains like that for a bit, anticipating Izuku's next move, always ready to counter-attack. Then, out of nowhere, a hand shoots towards him, and in a blink of an eye, Izuku's hand is grabbing Katsuki's nape and pulling his face down to capture his lips.
Suddenly, it's mayhem—It's nothing like the two kisses they shared that first time—Izuku is chasing Katsuki's lips like his life depends on it. He opens his mouth and laps at the other's committedly with his tongue, making sure not to leave any corner out. Katsuki replies with the same passion, holding onto Izuku's t-shirt for balance and tilting his head to explore his mouth with vigor.
It's a mess of pants, teeth, spit and sweat—it's the most amazing, intoxicating thing they have ever done, and they both feel like they can't get enough of each other.
After what feels like either a lifetime or mere seconds, they break apart to catch their breath and stare at each other.
"What the fuck was that, nerd?" Katsuki asks, amusedly.
"Just felt like it," Izuku replies, averting Katsuki's gaze from beneath him, his newfound bluntness already beginning to disappear.
"Hmm" Katsuki contemplates the response as he slides his thumb against Izuku's swollen, slicked lips. "Fair enough," and he dips down to capture Izuku’s lips once again.
𐔌՞. .՞𐦯
The first time they do a bit more than making out is in one of the toilets in Endeavour's agency after training.
Katsuki pushes Izuku into one of the stalls and quickly secures the lock behind his back, grabbing Izuku's head with his hands and smashing their lips together.
Izuku melts under his touch and allows Katsuki to take the lead, pushing his body further into the door and sliding his hands up and down the blonde's back fervorously.
Katsuki hums as he drops both of his hands down to squeeze Izuku's butt through his pants, rutting his hips closer until he's flushed against Izuku's front. Izuku takes the opportunity to rut back and, high on adrenaline, he brings his hand to Katsuki's waistband and tries to squeeze his hand inside Katsuki's pants.
"Is this... Is this okay?" He asks, trying his best to sound as composed as he can, his voice barely above a whisper.
"Yeah," Katsuki quickly meets him halfway and does the same to him, eagerly unzipping Izuku's fly and bringing him out of his pants.
"Does this mean you like me?" Izuku asks out of breath, in between clashes of teeth and spit everywhere.
"What do you fucking think?" Katsuki shuts him up by shoving his tongue down his throat, and starts stroking Izuku's shaft messily, smearing the few drops of precome collected at the tip with his fingers and using them as lube.
Izuku groans at the sensation and starts doing the same to him. "You know, it wouldn't hurt to say it out loud…"
"Of course I fucking like you, Izuku," Katsuki's touch feels impossibly hot against Izuku, his sweat and scent clinging to him like second skin. He has never felt this turned on before.
"I like you so much it pisses me off," he says against the crook of Izuku's freckled neck, spitting the words there, only for him to hear. He then grabs both their cocks and starts rubbing them together, the sweat and precome making the glide easier.
They end up coming at the same time, making a mess out of their clothes and panting like they have just run a marathon.
"I like you too, Kacchan," Izuku says, clutching the back of Katsuki's shirt for dear life, his legs threatening to give away.
Katsuki rests his forehead against the door behind Izuku, struggling to catch his breath.
"Yeah, I figured as much, nerd."
𐔌՞. .՞𐦯
The first time one of them sneaks into the other's room is on a January night. Katsuki is anxious about their next mission, and they are discussing the details over text before going to sleep.
I: we'll be fine as long as we stick to what we talked about with burnin'
K: i know
I: u seem upset kacchan, you want me to come and help you relax?
K: idc
I: so you do want me to come
K: fuck you
I: ill be there in 5
Izuku quietly opens the door to Katsuki’s room and slips inside Katsuki's comforter in no time.
“Bastard! You’re freezing!” Katsuki practically yelps when Izuku climbs inside his bed and starts trying to push his hands inside his pajama pants.
“That’s why I need you to warm me, Kacchaaaaaan,” Izuku whines, annoying and playful.
“I thought you were here to help me relax or some bullshit," Katsuki retorts but lets Izuku do as he pleases.
“Yeah, yeah, that too, Kacchan. Eager much?” Izuku says as he deftly makes his way down inside Katsuki’s pants.
“Shut up,” Katsuki says as he grabs the back of Izuku’s neck and brings their mouths together, his smile drowned by the other’s lips.
They are getting better at this, bodies reacting on instinct and hands searching in all the right places. Izuku breaks away from the kiss and starts mouthing a trail of kisses down Katsuki’s neck from his ear down to his collarbone, while taking the blonde's already half hard cock into his calloused hand. Katsuki lets him take the lead, he was here to make him relax, after all.
It doesn't take long for Izuku to bring Katsuki into full hardness, just a few strokes and the temperature inside their comforter cocoon a bit too much to handle. A soft "fuck" escapes Katsuki's mouth when Izuku starts working relentlessly on his cock, caressing his balls from time to time and keeping the exact pace Katsuki needs to reach his climax.
Izuku makes sure not to leave any part of Katsuki's body unattended, his left hand having come up slowly to caress and softly play with Katsuki's perky nipples under his t-shirt. God, when did Izuku get so good at this?
"Zuku, I—I'm gonna come," Katsuki pants into soft, green hair.
"Already?" Izuku teases, but he looks as affected as Katsuki. "Go on, Kacchan, come for me, then."
"Fuck," and with that, white ropes of come start painting Izuku's hand under the blankets. Katsuki's knuckles are white from clenching them hard onto Izuku's t-shirt, and Izuku gently helps him ride out the orgasm, kissing his eyelids tenderly and carefully slowing down the rhythm on Katsuki's softening cock.
They stay like that for a while, basking comfortably in each other's warmth, and before Katsuki can't even regain his bearings and return the favor, Izuku disentangles himself from Katsuki's limbs and removes the blankets, getting out of the bed.
"I'll get going. Hope you're relaxed enough for your beauty sleep, Kacchan! We need you on top form tomorrow." It's so dark in Katsuki's room that he can't even make out Izuku's features, but Katsuki swears he winks at him before exiting the room, the fucker.
"You don’t have t—Yeah, okay… bye, nerd."
From this moment on, this becomes the norm. They make out and help each other relieve stress once or twice a week, but they always return to their own rooms afterwards.
𐔌՞. .՞𐦯
The first time Katsuki goes down on Izuku is one day when Izuku is battered and bruised from a pretty rough fight.
He’s back home for the week, safely tucked inside his bed while his mother is cooking in the kitchen, when Katsuki enters his bedroom.
“Kacchan? What are you doing here?” Izuku asks, bewildered.
“Aizawa asked me to bring you your homework. You’re about to graduate, nerd, don’t think you can start slacking off.”
“Sensei asked you, of all people, to bring me my homework?” Izuku asks, tilting his eyebrows incredulously.
“Well, I might have told your nerd squad that I know the way to your house better than they do, is all.” Katsuki says, cool and collected.
Izuku tries not to sound too giddy at the response as he motions for Katsuki to come closer. The blonde closes the door behind his back, leaves his backpack on the floor, and carefully sits down next to Izuku on the bed to examine his bandaged arms.
“You really have to stop breaking your damn limbs,” Katsuki says.
“Gonna kiss it better?” Izuku asks with a suggestive raise of his eyebrows.
“Was damn hoping you’d asked,” and with that, Katsuki’s all over Izuku—careful not to hurt him where he’s hurt, and taking care of him in all the right places.
Katsuki starts by kissing Izuku’s beaten up face—his forehead, his nose, his cheeks, his eyes—and saving his mouth for last. Izuku thinks he’s dreaming. After a hot, long minute devouring every bit of his lips and tongue, Katsuki starts moving down Izuku’s body, caressing every turn, every pore and every bone with a care Izuku didn’t know he was capable of. It’s as if he’s worshiping every inch of him, and Izuku indulgently basks in the attention. He lets the sensation sink in, letting Katsuki's touch mark his skin like a brand. He doesn’t really know what to do, since he can’t exactly move as freely as he would like to—and even if he could, he isn’t sure his brain capacity would play along.
Katsuki softly lifts Izuku’s t-shirt up to his chest to reveal soft, toned, bruised abs, and his mouth waters at the sight. He takes his time to earnestly lick and suck at his nipples, and Izuku’s mouth opens in surprise at the discovery of the sensitivity of his own body. Once Katsuki decides that he’s done with them, he starts licking a trail down to the hardened bulge in Izuku’s pants.
With a swift, careful motion, he slips Izuku’s waistband down right below his balls so his cock can bob free, fully hard and already glistening with precome at this tip. Katsuki looks up to Izuku’s face then, and finds he’s blushing from his chest to his hair, eyes lidded with lust and sweat clinging to his face. God, and he hasn’t even started with the real deal yet. He’s going to ruin him.
“Kacchan, yo-you don’t have to do this,” Izuku says, averting his gaze.
“Oh, I don’t?” Katsuki says before licking all the way from Izuku’s balls to the tip of his shaft. “Are you sure?”
“Fuck,” Izuku curses under his breath.
“Oi, nerd! Language! Your mom is right in the next room, you don’t want her to listen, do you?” And after that, he takes Izuku fully into his mouth. Izuku tries to quiet down his whimperings and, momentarily and guiltily hopes that his mother’s hearing hasn’t magically improved.
Katsuki’s mouth feels like nothing he has ever experienced before—making his broken limbs feel like jello and completely melting every rational thought inside his brain. He can only think of Kacchan—Kacchan's head going up and down his cock, Kacchan’s hair softly bumping with each involuntary thrust of his hips, Kacchan’s mouth collecting spit and precome, Kacchan’s hands firmly holding Izuku’s hip and caressing his inner thigh. Kacchan, Kacchan, Kacchan, Kacchan.
He doesn’t want this to end, but at the same time, he feels as if he’s hanging by a thread, every bob of Katsuki’s head quickly bringing him closer to the edge.
“Kacchan, caref- Kacc- I’m gonna, I’m gonna co-” Izuku tries to warn Katsuki without straining his broken arms, and the other just hums around his painfully hard cock, the sound sending shivers down Izuku’s spine and shoving him all the way down the cliff.
White spurts of come shoot down Katsuki’s throat as he milks Izuku dry, swallowing every drop dutifully while Izuku is barely holding it together—pupils completely dilated and mouth open like a fish out of the water.
“That… That was amazing, Kacchan,'' Izuku says, nervously disentangling his trembling hold on the other’s blonde locks, breathing heavily and feeling on the verge of tears just from the overwhelming pleasure.
“Damn right it was, nerd. I’m the fucking best,” Katsuki says as he flashes one of his handsome smiles, devilishly cleaning his mouth with his sleeve.
𐔌՞. .՞𐦯
The first time they go on a date, it sort of happens by accident.
Kaminari, Kirishima and Ashido had been pestering everybody in the class to throw a costume party that weekend. They were all busy with schoolwork and internships, but with only a few months left before graduation, the desire to celebrate and create lasting memories together was stronger than ever.
The class collectively agreed to host the party at last, so the idiotic “party planning committee”—as they had decided to name themselves—assigned tasks to each and every member of Class 3-A to complete before the event.
Izuku, Katsuki, Tokoyami, Jirou and Asui were in charge of buying the decorations, so here they were, entering the city mall in hopes of finding the perfect items for the party.
As it turned out, the task was relatively easy, and they found what they were looking for in less time than they had anticipated. So they decided to grab something to eat in one of the mall’s diners.
Katsuki didn't want to be there. Hell, he didn’t even want to go to the mall in the first place. He had more important things to do, damn it! Yet, here he was, sipping a strawberry milkshake through an annoying cardboard straw while his so-called friends bantered about unimportant, irrelevant matters.
Uninterested as he was at the conversation happening around him, Katsuki lets his eyes roam to Izuku, currently sandwiched between Tokoyami and Asui. His eyes are like crescents and his freckles look more prominent than usual. Katsuki thinks that he’s glowing, and an unintentional small smile creeps onto his face.
Jirou suddenly interrupts whatever Izuku is saying, “Asui-chan, Tokoyami-kun! I just remembered I have to buy my mother a present for her birthday, why don’t you come with me and help me choose?!” She says, eyeing Asui suspiciously.
“Oh, okay? We can come as well, we’ll just finish our milkshakes on our way there!” Izuku replies.
“Nah, it’s okay, Midoriya! I don’t think you and Bakugou are going to be of much help, given your taste in clothing and everything…” Jirou says, hiding her smile behind her hand. Asui and Tokoyami have already stood up and are smiling along with her.
“Oi, what the fuck, Ears?!” Katsuki blurts back at her.
“Yeah, yeah, whatever, Blasty! We’ll get going, guys. See you at home!” Jirou says as he dismisses them, turning herself around and heading for the door.
That leaves Izuku and Katsuki alone at the big table in the corner of the diner. “Okay…?” Izuku says, sipping from his straw. It makes his cheeks puff, and it looks as if his freckles are colliding against each other. Katsuki laughs at the sight.
“What are you smiling about?” Izuku asks, curiously.
“Nothing,” Katsuki disregards.
“This table is too big for only the two of us, I can barely hear you,” Izuku says, matter-of-factly.
“Come here, then,” Katsuki replies as he pats the space next to him on the bench.
“Okay!” Izuku sing-songs as he stands up from where he’s seated and heads toward Katsuki.
Once he’s seated next to him, the blonde extends his right arm to cup Izuku's hip and subtly bring him closer to him. Izuku blushes furiously at the action, bowing his head to try and hide his embarrassment.
Katsuki simply sips his milkshake and relishes in the moment. This might be the first time they are out of the dorms spending time with each other. He never actually thought about doing something like this with Izuku, but he guesses it’s not so bad. It’s good, actually, really fucking good. And by the look of Izuku’s face, he might be thinking the same thing.
With a quick look around, Katsuki makes sure that their spot in the diner is hidden and safe enough to dip his head down and leave a quick, soft kiss on Izuku’s cheek.
After he does, he breaks into a fit of laughter at Izuku’s reaction- his face as red as Kirishima’s hair and his jaw practically on the floor.
𐔌՞. .՞𐦯
The first time Izuku gives head to Katsuki is one late night in the shower after a sparring session.
They have ended up being the only ones in the training ground, both of them practicing their new moves and, once again, losing track of time. It’s Katsuki who notices the clock on the wall and tells Izuku to start heading back.
“Giving up already, Kacchan?” Izuku asks, challenging.
“Fuck you, nerd, I’m just hungry,” Katsuki huffs.
“Yeah, yeah, whatever you say.”
The air in the locker room is tense, almost palpable. They both undress in silence, exchanging stolen glances and panting from exhaustion, their bodies still tingling with the adrenaline coursing through their veins.
Once in the showers, they each take a stall and quietly go about their routines. Katsuki is the first one to break eye contact, turning on the faucet and letting the water cascade over his face and through his sweaty locks, finally closing his eyes in relaxation. When he opens them again, he’s met with determined, expectant green eyes that hungrily look at him from head to toe.
Izuku approaches him like a pray and clashes their lips together, drinking Katsuki in like a thirsty man. In no time, he has the blonde pushed against the wet wall, left hand caressing his defined abs and the right one already taking hold of his half-hard cock. Katsuki groans and deepens the kiss, squeezing the hairs on the back of Izuku's neck and sinking his nails down into his scalp. Suddenly, Izuku's on his knees, taking Katsuki’s cock into his mouth fully and holding the back of his thighs with firm hands.
Katsuki lets out the most shameful groan to date as he lets his head fall back, the sudden, wet pleasure being a little too much for him to take.
“You’re gonna kill me, Izuku," he says through gritted teeth as he grabs Izuku's dark, wet locks with both of his hands and starts rutting his hips to the rhythm of Izuku's bobs. Tears start pooling on the corners of Izuku's eyes, and Katsuki worries for a split second before he notices the boy is stroking himself eagerly with his free hand.
The visual stimulation along with the wet feeling of Izuku's mouth around his cock, and the gagging sounds coming out of the other's mouth finally manage to bring Katsuki to his climax.
With a gentle tap on Izuku's head, Katsuki warns him of his imminent release. Izuku just nods and keeps bobbing, eagerly waiting for the load he knows is coming while making eye contact with Katsuki from his spot on the floor.
When he feels the first salty spurt hit the back of his throat, Izuku takes out his tongue and deftly milks Katsuki's cock with his hand, trying to catch every drop with his mouth and tongue but, obviously (and purposefully), failing – ending up painting his whole face with white.
Katsuki feels as if all the air has been sucked out of his lungs. He manages a vague "Fuck, nerd, where did you learn this?" before sliding down to the floor, completely defeated.
𐔌՞. .՞𐦯
The first time they sleep in the same bed is when Izuku loses someone in a fight for the first time.
Locked in his room, Izuku is curled on the floor with his back against the wall. He has long finished crying about it, instead tormenting himself and contemplating what he could have done differently.
Everyone is worried about him. A few have tried knocking on his door, but, so far, he has dismissed them all. He doesn't need kind words of reassurance; doesn't deserve them. He was supposed to be the Symbol of Peace, the hero who saves with a smile, not the failure who lets people die.
Katsuki goes up to his room as soon as he learns about the situation in the living room.
"Bakugo, I don't think he wants to see anyone right now… Uraraka says it's pretty bad," Kirishima says as he tries to stop him from going up, gently grabbing his arm.
"I’ve got this," Katsuki disentangles himself from his best friend's hold and continues to trudge up the stairs.
He opens the door without bothering to knock. "Nerd, it's me."
“I’m fine, Kacchan, please go away,” Izuku replies, stopping his unintelligible mumbling without even lifting his head from his forearms.
“The hell you are, Izuku,” Katsuki crouches down next to him and touches his arm. “Look at me.”
“I don’t want to.”
“Look at me, Izuku,” Katsuki urges.
Izuku knows he can’t say no to him, so he reluctantly lifts his eyes up to ruby ones. Katsuki notices the bags under Izuku’s swollen, red eyes and his chapped, bloody lips.
“Come on,” the blonde orders, pushing Izuku’s practically strengthless form up in one solid movement and bringing him into the bed.
Next thing he knows, Izuku’s tucked inside his comforter with Katsuki’s warm body around him.
“It was my fault, Kacchan," Izuku finally says with a wobbly voice.
“It wasn't,” Katsuki reassures him, gently drawing circles on Izuku’s back. His breath is soft on top of Izuku’s head as he holds him tight through the tears. “It wasn’t your fault.”
Izuku sniffles and lets himself cry quietly, hugging Katsuki tightly and burying his sobs in his chest.
"Will you still be here when I wake up?" Izuku asks quietly.
"Yeah, Zuku, just go to sleep," Katsuki replies as he softly kisses the top of Izuku's head.
Izuku doesn't remember exactly when he drifts off, but he's convinced he will never forget what he felt that day, falling asleep surrounded by Kacchan’s warmth for the first time.
𐔌՞. .՞𐦯
The first time they hold each other's hands is the day Katsuki's parents end up in the hospital after a villain's attack.
When Kirishima calls Izuku to tell him the news, he excuses himself from his daily patrol with Shoto and Burnin’ and rushes to the hospital. Even if he’s not really sure if Katsuki would even want him there.
"Hello, may I please have Mitsuki and Masaru Bakugo’s room? It’s urgent, please,” Izuku nervously asks the receptionist.
He needs to see Katsuki. He doesn’t know what he’ll tell him, but he just feels the need to be there, to provide comfort in any form that he lets him, to assure him that it's going to be okay – even if he doesn't know the extent of the situation.
When he reaches the waiting room, he frantically scans the area for blonde ash hair and finds Katsuki's crouched form in one of the chairs, sitting alone, his head bowed. Izuku approaches him slowly and takes a seat in the chair next to him without uttering a word, exhaling deeply.
Katsuki acknowledges his presence with a sidelong glance, and Izuku firmly takes his hand in his own.
Katsuki doesn't say anything, he simply squeezes Izuku’s hand back as hard as he can. He knows Izuku can take it.
𐔌՞. .՞𐦯
The first time they talk about them is one Tuesday afternoon, barely two weeks before graduating.
They are in Izuku's room, Katsuki sprawled on his back on the bed doing homework and Izuku on his desk, facing his computer. They didn't normally do this, at first, but lately - more often than not - sparring sessions lead to heated make up sessions that lead to both of them being too tired to leave for their room, deciding instead to bask in the afterglow of their orgasm and hanging around each other for a while.
"Would you mind if I went with Ren to the dance?" Izuku asks suddenly.
"Who the fuck is Ren?" Katsuki replies, his tone laced with venom.
"That General Studies guy I told you about the other day, the one who was interested in my support items and-"
"Yeah, yeah, whatever. Why should I care? Do whatever the fuck you want," Katsuki tries to sound nonchalant, not even looking at Izuku and idly tossing a small ball back and forth against the wall.
"So you don't mind," Izuku states more than asks.
"Nah, why would I?"
"Okay," Izuku clenches his fist and goes back to his laptop.
"Are you gonna suck his cock while you're at it, as well?" Katsuki asks from his spot on the bed, gritting his teeth and looking at the ceiling while he aggressively throws the ball one more time.
"You're a piece of shit, Kacchan," Izuku says, turning around harshly and locking eyes with Katsuki. "And yeah, maybe I might, as I see it won't be a problem," he boldly takes the ball from the blonde's hand and tosses it to the other side of the room.
"Are you for real?" Katsuki spats, holding Izuku's gaze.
"Are you for real? I'm trying to have a conversation here, Kacchan, but you don't seem to care enough about me or about anything for that matter to even-"
"Fuck, shut up, I'm sorry, okay!?" Katsuki interrupts him, running his hands through his hair.
"About what, exactly?" Izuku's gaze is intense – Katsuki thinks it might rival the look he gives to villains before a fight. He's not used to being on the receiving end of this look anymore. He stopped being Izuku's villain a long time ago.
"About what I said," Katsuki admits, averting his gaze.
"Which part?" Izuku asks, his hurt evident.
"Everything… Fuck... I- I don't want you to go with him. And of course I would… fucking care if you were to su-Fuck. It would crush me, Izuku, and you know that," Katsuki allows himself to sound a bit vulnerable, even though he hates it.
"I don't know that! I don't know anything, Kacchan! Not if you don't tell me! Not if we don't talk," Izuku is practically ripping his hair off by now.
"Well it's not like you've actually approached me before wanting to talk or anything, nerd! Don't fucking put this all on me!" Katsuki retorts.
"And besides… Who am I to tell you what you can or can't do? It's not like we can go to this stupid dance together anyway, so you might as well enjoy it however the fuck you want..."
"Why not? Would it be so wrong if we were to go together?" Izuku sounds both hopeful and sad at the same time, if that makes any sense.
Katsuki falls silent. He's not good with these things. He doesn't want to have this conversation. He's uncomfortable.
At the lack of response, Izuku goes on. "And of course you can't decide what I can and can't do, but you sure can tell me how the things that I do make you feel. That's why I'm asking. It's true that we never actually discussed… boundaries or exclusivity but-"
Izuku is interrupted again. "Okay, if you're asking, then: I don't want you to."
"You don't want me to what?" Izuku asks, tilting his head.
"I don't want you to go to that stupid dance with that stupid extra, and I sure as hell don't want you to suck his stupid cock," Katsuki says, matter of factly.
"Okay, does that mean that you don't want me to… do this kind of stuff with anyone else but you?" Izuku asks, arching an eyebrow.
"Yep," Katsuki says, exaggerating the final “p”.
"Does that mean that you want us to be exclusive?" Izuku asks, another raised eyebrow.
"I guess..." Katsuki mumbles, avoiding Izuku's questioning gaze.
Izuku sighs exasperatedly.
"Come one, Kacchan, don't "I guess" me. Do you want to-"
Katsuki interrupts Izuku once again, closing the distance between them (metaphorically and literally), and grabbing his head with both hands, losing his temper.
"For fuck's sake, dumbass, you're really gonna make me say it, aren’t you? I want you! You, you, you, you and no one fucking else!"
Izuku had been looking for a reaction, but this definitely wasn't what he was expecting.
"And that means I don't want anybody else to have you."
With that, Katsuki dives in for a kiss, head already tilted to slide his tongue inside Izuku’s mouth, just like he knows the other likes. Izuku is more than happy to oblige and responds with the same fervor, allowing Katsuki to explore every corner in his mouth while firmly holding onto the back of his neck.
Breaking away a bit from the kiss, Izuku rubs his nose against Katsuki’s, allowing himself to be more tender, more intimate than usual.
"Okay Kacchan, I'll ask Ochako if she wants to go to the dance with me, then," Izuku says with a sheepish smile.
Katsuki eyes him suspiciously.
"As friends, oh my god!" Izuku giggles, still tangled up in Katsuki’s arms, his chest suddenly filled with fondness and butterflies. He knows he has managed to break one of Katsuki's walls right now; he doesn't want to keep pushing. One step at a time.
"We're together now, aren't we?" Izuku asks tentatively. "Even if we're not out or anything, I'm not going to go around having dates behind your back, Kacchan, don't worry," Izuku says, trying to hide his trembling hands. He knows that what they have just talked about marks a significant shift in their dynamic—one that he can't wait to explore, but also one that scares him.
"Yeah… You better not, nerd," Izuku notices the faintest blush creeping up Katsuki's ears. "And... Are you okay about the whole not being out thing? I don't think I-"
This time, it's Izuku who interrupts him. "It's fine, Kacchan, as long as we can still have… this, I don't care about the rest," he says while hugging Katsuki's middle and drawing him even closer.
Katsuki hugs him back and rests his head comfortably on top of his green spikes. "I can't believe you called me a piece of shit. I'm going to tell Glasses."
𐔌՞. .՞𐦯
The first time they make love, Katsuki cries.
They had agreed that Izuku would bottom the first time, since he was more curious or something like that, and decided to try it the other way around next time. Truth is, they both were eager to do it, in whichever form that was.
Since their last talk, their relationship had become even more intimate, if that was even possible. They still kept everything discreet, but they couldn't keep their hands off each other whenever they were together, which was practically all the time. And as much as they still preferred to keep things low-key, they were sure some of their classmates were starting to suspect.
The thing is that they were barely holding it in. The need to touch more, to do more, to feel more was becoming too much day by day.
So, here they were, in Katsuki’s room, on a weekend in which they knew they would be practically alone in the dorms. They are sprawled out on the bed, each sipping a soda and eating snacks while chatting about their plans after graduation.
Honestly, it’s the most comfortable they have ever been around each other, both content with what they have managed to build over the years. Despite the pain, the strained years when Katsuki couldn’t get his head out of his ass, and the complications they have had to face as childhood friends, rivals and, ultimately, lovers—they are here, together, offering each other comfort and taking their relationship one step further.
Katsuki is the one who makes the first move, grabbing the can from Izuku’s hand when he notices he’s finished it and clearing the remaining packages still scattered on the bed. Izuku watches him intently, unconsciously holding his breath and anticipating his next move.
Katsuki then gently pushes his shoulder, prompting Izuku to lay down completely on the bed. He climbs on top of him, positioning himself directly over him, and holding Izuku's hip with one hand and his neck with the other intimately.
Their eyes meet, both locking their gazes for a moment, and without uttering a single word—as if communicating in their secret language—their bodies begin moving on their own.
Izuku pushes forward and bites Katsuki’s lower lip as he holds the back of his head, diving in for a deep kiss and sliding his tongue inside Katsuki's mouth as if it belonged there. Katsuki lets him, opening his mouth and sliding his arm up as he caresses Izuku's side tenderly, softly pushing the fabric of the other's t-shirt up. They both remove their t-shirts for better access, relishing in the sight and touching everywhere they can.
Katsuki starts unbuttoning Izuku’s jeans with one hand, the other one entertained with Izuku’s left nipple. Izuku lifts his hips a bit, giving the other more access to swiftly remove his pants and boxers completely. Embarrassed by the sudden nakedness, Izuku tugs at Katsuki’s waistband with his hand.
“Off,” he mouths in between kisses.
“Oi, oi, bossy much?” Katsuki grins.
“Kacchan, please,” Izuku whines as he tugs eagerly at Katsuki’s waistband once again.
“Begging already, huh?” The blonde teases as he reluctantly separates himself from Izuku to take off his own sweatpants, leaving only his boxers on.
Izuku is not completely satisfied, but figures he will have to make do. He just wants Katuski’s hands on him.
And what he wants, he gets.
Katsuki’s mouth is back against his in no time, and his hands are suddenly finding their way into his inner thighs, caressing softly and leaving a tingling trace wherever he touches. Izuku is on fire, with every touch of Katsuki's scorching fingers igniting every nerve in his body.
These scorching but smooth fingers finally find their way into Izuku’s already hardened cock, starting a familiar, delectable rhythm that makes his insides melt like goo. Izuku lets his head fall back onto the pillow, surrendering completely, his hands resting beside his tousled hair and gripping the sheets. When he starts feeling like the friction is not enough, he notices Katsuki moving up to his bedside table, and a soft clicking plastic sound sets all his nerves on fire.
Izuku breathes out, trying to relax as much as he can, and reminds himself to let Katsuki take the lead for tonight.
The same clicking sound brings him back down to reality, and he lifts his eyes to meet Katsuki’s gaze. He is definitely not prepared for the sight his eyes bless him with—disheveled blonde spikes, dilated dark pupils that are staring right into his soul, strong muscles bending over him, and the prettiest, softest, most kissable lips he has ever seen. All for him, in this very moment, entirely at his mercy.
“If you want out, say the word, Zuku,” Katsuki says, already warming the lube with the fingers in his right hand and stroking Izuku’s hard shaft with the other one.
“I wouldn’t think of it,” Izuku says with his trademark wobbly smile.
And then, with the utmost care he can muster, Katsuki’s slicked index finger enters Izuku’s puckered rim.
Izuku gasps at the cold, unfamiliar stretch, but forces his muscles to relax at the intrusion.
“Shh, I got you,” Katsuki mouths against his thigh, never forgetting the steady pace of his left hand on Izuku's cock.
“You okay?” Izuku gets whiplash from how fast Katsuki is suddenly up in his space again, kissing his forehead first and then moving down to his parted mouth. Izuku nods and lifts his hips a bit, encouraging him to keep going.
“Okay, okay” the blonde says, with a hint of a smirk, as he goes down Izuku's body again.
He takes Izuku’s cock in his mouth before he slips another lubed finger inside his rim, trying to make it as bearable as possible for Izuku. Izuku whimpers at both the pain and the pleasure, and tries to focus solely on the latter. It’s definitely a stretch, but he can take it. Katsuki’s fingers are slowly building a pace, reaching deeper with each thrust, scissoring and getting closer to where Izuku knows it tingles the best.
Quickly, two fingers become three, and the stretch is more bearable with every kiss and every encouraging groan from Katsuki.
"I'm ready, Kacchan," Izuku says, his chest heaving.
"You sure?"
"Hm," Izuku nods eagerly with a reassuring smile.
Katsuki lets out a breath he didn't know he was holding as he lubes his neglected, painfully hard cock and aligns it right outside Izuku's waiting hole. And with a final, questioning look to his lifelong friend and lover, Katsuki pushes inside.
Izuku's walls engulf him with such unbelievable warmth that he can't contain the hundred feelings that threaten to burst out of his chest. Tears quickly well up in his eyes, and before he notices it, they are blurring his vision and spilling down his cheeks. He tries to calm himself down, but the feeling is too much, his hands trembling from where they're holding Izuku's hips.
"Hey, hey, Kacchan, what's going on? Are you okay?" Izuku asks worriedly as he lifts his arms to touch Katsuki's face.
"I… I—yes, yes, fuck, sorry," Katsuki is sure he will be beyond embarrassed when he recalls this in the future, but he can't bring himself to care right now.
"I'm more than okay," he reassures, lifting one of his hands to rest on Izuku's cheek. "I'm perfect," he whispers, kissing his lips softly. "This is perfect," he adds, planting another kiss on his nose. Izuku smiles fondly with both his eyes and mouth at the sudden display of tenderness.
"You are so fucking perfect," Katsuki says at last, resting his forehead against Izuku's and finally bottoming out.
Izuku's breath catches in his throat at the feeling of being completely full, and wipes Katsuki's tears away from his handsome face—pulling him back into a heated kiss and encouraging him to move with a light tug of his hips.
They slowly find their pace. Katsuki keeps peppering Izuku with kisses and makes sure to lift his legs in all the right angles so he's hitting right into where he's supposed to hit to make him see stars.
"Kac—Kacchan, right there…" Izuku moans with half-lidded eyes and starts meeting Katsuki's thrust with his hips. Katsuki breathes and tries not to come right then and there, focusing on abusing that bundle of nerves inside Izuku.
Trembling hands find their way onto Katsuki's muscled back. Izuku is squeezing and clawing with his nails with enough force to leave bruises, and Katsuki takes this as a cue to grab hold of Izuku's cock and build a pace to shove him off the edge.
"I—I won't last much longer, Kacchan..." Izuku practically whispers into Katsuki's ear as the other mouths and bites the skin in the juncture between Izuku's neck and shoulder.
"Go on, then, Zuku," Katsuki encourages him with a soft peck to his lips as he relentlessly thrusts inside Izuku's tight, warm hole and strokes his length at the same time.
"Oh my god, Ka—Kachhan!" and with that, Izuku's coming. Ropes of white paint both his chest and Katsuki's knuckles as his body arches and lifts from the bed involuntarily. Katsuki follows soon after, Izuku's hole clenching around his cock being more than enough stimulation to push him over the edge. He feels his seed painting Izuku's insides as a new wave of tears overcome him. God, he's so embarrassing.
He lets his body fall on top of Izuku, heart beating faster than ever. Izuku catches him in his arms, cradling his head, and once again wipes away his tears with his hands.
"Well, well, well, who would have thought you would be the crybaby?" Izuku teases as he holds both of Katsuki's cheeks. Katsuki pouts (POUTS!) and tries to avert the other's gaze, hiding his face in the crook of Izuku's neck, where he finds a few bruises and hickeys. That, at least, brings a small smile to his lips.
"Shut up, fuck you," he mouths in the space between Izuku's head and the pillow. His softening cock is slowly slipping out of Izuku, and Katsuki keeps hugging him tightly, not giving a single fuck about the mess they have between their bodies.
Izuku giggles and secures his arms around Katsuki tightly. "I’ve loved this, Kacchan," he confesses to the ceiling, "I love you so much."
Katsuki's breath catches in his throat, and he's grateful for the position they're in because he's not sure if Izuku will let him live it down if he sees more tears pooling in his eyes.
He mumbles something almost unintelligible against Izuku's skin that sounds almost like "I love you too, nerd." And, well, who is Izuku to pry? He will let him have this one.