Chapter Text
KO
Katsuki is in heaven. He got everything he wanted and it’s even better than he expected. It’s been almost five months since he and Deku began dating and every time they find themselves tangled in bed, Katsuki is convinced this is what paradise must be like.
“Come on, baby. Work this fat ass for me.”
Deku indulges his pleads and Katsuki watches as the most perfect ass he’s ever seen jiggles just for him. It’s not the first time he has Deku on all fours to worship his ass but he doesn’t think the experience will ever get old. Katsuki’s heart threatens to give out every time Deku twerks for him.
“Fuck yeah… That’s it, baby. That’s so fucking hot,” he praises, running his hands over the big globes to caress them.
“Kacchan… Are you just going to stare the whole day?” Deku whines, jiggling his ass enticingly.
“I fucking wish…” he groans, giving the ass a long squeeze. “I’ve got training in an hour, though. Fucking Todoroki has been riding my ass because of the championship next month.”
“Then do something!” he says, shaking his ass again.
“I’m doing,” Katsuki answers, spreading Deku’s ass wide to see the cute little puckered hole he loves abusing so much. “I’m appreciating this masterpiece.”
Deku huffs against the pillows and threatens, “If your appreciation doesn’t get a little more active, your sensei won’t be the only one riding your ass.”
“Don’t threaten me with a good time,” Katsuki says cheekily but leans in to start licking and sucking Deku’s hole.
Katsuki loves eating Deku’s ass. He can confidently say it’s his favorite thing to eat, knocking down his grandma’s ginger cookies and his own spicy curry from the competition. His other favorite foods may taste great but they don’t come with the show of Deku writhing and moaning for him. Katsuki could spend hours just working his tongue around and in Deku’s hole until his boyfriend is crying from overstimulation.
Deku, however, isn’t as eager to just lay down and let Katsuki play with him. He’s as feisty in bed as he’s out of it and doesn’t take long until he’s demanding more of Katsuki.
“Kacchan,” he whines. “Come on, fuck me… Or else you’re going to be late for training.”
If Katsuki is late for training, Todoroki sensei will make him stay after to clean up and do some useless exercises just to teach him a lesson. The guy would probably schedule some extra training exactly during the time he’d normally spend with Deku just to get on Katsuki’s nerves. So as much as he’d like to drag this on as much as possible, Katsuki acquiesces.
“Alright, baby. However you want,” he says, grabbing the frequently used lube from the nightstand.
It hasn’t been even 12 hours since the last time they danced this dance, so prepping Deku goes quickly and easily. There’s something to be said about not being able to keep off each other and that is that Katsuki fucking loves it. The slide in is perfectly tight and warm as always, and the sight of his cock disappearing inside Deku’s ass will be forever burned in Katsuki’s mind as one of the sexiest things he’s ever seen.
“Oh, yes…” Deku cries when Katsuki starts fucking him. “More...”
It’s fair to say that Katsuki’s obsession with foreplay is because once he and Deku get on to the penetrative sex, it’s hard for them to hold back. Things roll fast and dirty in the blink of an eye—one second Katsuki is enjoying the stretch of Deku’s ass around his dick, the next he’s fucking so hard the bed bangs against the wall and his hands are printed on Deku’s ass.
Even if Katsuki would like to drag things on and spend more time inside his boyfriend’s gorgeous ass, Deku never stops spurring him on. He loves to keep Katsuki on his toes. The challenge Katsuki saw since the first time they met never waivers, and that’s exactly why Katsuki loves Deku so fucking much.
“Harder, Kacchan,” he pleads, shaking his ass to tease Katsuki.
“Can’t ever get enough, can you, baby?” Katsuki asks, voice already wrecked.
He snaps his hips harshly, making their thighs slap. Deku moans and throws his head back—a silent invite for Katsuki to pull his hair. They literally can’t keep their hands off each other; during sex, Katsuki grabs and gropes and squeezes every part of Deku and Deku indulges him, offering himself on a silver platter.
Katsuki lets go of Deku’s ass and sinks his hand into his hair, pulling it until his back arches beautifully. Deku cries loudly from the new angle, cueing Katsuki that he must be hitting his prostate spot on. Not one to lose a chance to drive his lover crazy, Katsuki doubles his efforts, fucking Deku as hard as he can.
“Ahhh! Kacchan!” Deku cries. “I’m close, I’m close, I’m close—”
Katsuki can feel he’s not far behind either. So he releases Deku’s hair and hugs his midsection, effectively draping himself on Deku’s back. This gives him the chance to reach for Deku’s dick and jerk him off to completion.
“That’s it, baby… Cum for me,” he says a little breathless, a little sweetly. His words always turn sweet when fucking Deku.
When the orgasm hits Izuku, his ass clenches around Katsuki. It takes all his self-control to hold his own orgasm off until he fucks every last wave of pleasure out of Deku. Then, in the last second before tipping over the edge as well, Katsuki pulls out and spills his seed all over Deku’s glorious, hand-painted ass.
It’s a sight to behold. Katsuki spends a long moment just looking at the way his spunk squirted Deku’s ass. There’s cum, spit, sweat, reddish finger prints, old hickies and bite marks from previous trists, and freckles working together to create the perfect masterpiece. Katsuki wishes he could take a picture, print it, and hang it in his living room for appreciation, but he doesn’t think Deku would like it. He doesn’t think he’d like his friends to see it either.
They collapse in bed, tired and disgusting. Deku crawls to his chest and Katsuki hugs him tight, happy to enjoy the afterglow cuddles. Life really couldn’t be better.
“You’re going to be late for practice,” Deku says, softly.
Okay, that part could improve.
“Fuck practice…” he groans, not willing to part from his boyfriend.
If it was up to Katsuki, he’d spend the day in bed cuddling Deku and then fuck him again after they rested. And then cook him dinner, watch Deku moan prettily for his food. And then probably fuck him once again for good measure. That’d be a perfect day.
“Come on… I don’t want you to struggle in the championship because of me,” Deku says, pulling away from the hug.
“As if. I don’t struggle ,” Katsuki huffs. “I’m going to clean the damn floor with those extras.”
“I know,” Deku agrees with a sweet smile. “And I’m going to be there to cheer for you. Still, you have to go train.”
“Fine, only for you,” he agrees begrudgingly. “Just give me one last kiss.”
Deku is happy to comply and Katsuki milks that last kiss for as long as he can, until Deku has to remind him again of the hour. It’s with a heavy heart that Katsuki gets off the bed to clean up and get dressed. Every second he’s away from Deku is absolute bullshit in his opinion; and every time they say goodbye, Katsuki is already thinking of the next time they’ll see each other again.
“Tomorrow is dance class day, right?”
“You know it is,” Deku giggles.
“Are you staying later to see me train? We can grab some dinner after.”
Deku smiles brightly. He’s a goddamn vision, naked and tousled in bed. Katsuki just wants to go back and kiss him some more.
“That sounds great. Want to go for ramen?”
“That… Or we can go back to my place and I can cook you katsudon,” he offers, making Deku giggle again.
“You’re tempting me with katsudon to get me to sleep over,” he accuses.
“Maybe,” Katsuki grins. “Is it working?”
“Yes,” Deku says, getting up from bed to give him one last goodbye kiss. “See you tomorrow, then.”
Katsuki leaves Deku’s place with a spring in his step. Life truly can’t get better than this.
***
The next day, however, puts a wrench on Katsuki’s perfect life. He arrives at the gym excited to watch his cute boyfriend dancing in tight leggings and is faced with the presence of his worst enemy.
“What the hell is he doing here?” he growls when he approaches the dance classroom.
“Oh, hey bro! You got here late today!” Kirishima comments.
“Fucking train had issues,” he explains, not taking his eyes off the class where the devil himself is trying to make a twirl. “What is the shitty nepobaby doing in Deku’s class?”
“Shouto? He said he heard this class is good and decided to give it a try,” Kirishima explains like it’s no big deal.
But it’s a big deal, the biggest of deals because Todoroki Shouto is Katsuki’s nemesis. He’s Todoroki’s sensei son, heir to the whole gym complex, and has been competing against Katsuki in championships since Katsuki started training. And since Todoroki is the sensei’s son, he has always had extra training that he used to unfairly win against Katsuki.
When Shouto decided to quit karate, Katsuki felt like finally he’d have space to grow and shine. But now, he’s in the dance class doing something even more nefarious: talking to Katsuki’s boyfriend. The class comes to a small lull as Hawks goes to pick another song and Katsuki has to watch as Todoroki leans in to talk to Deku and Deku answers him! Deku smiles at him and answers whatever stupid question Todoroki made him! Katsuki is ready to burst into the class and put an end to that clownery—or he would if he didn’t think Deku would be pissed at him.
“The hell is he doing?” he hisses.
“Ah, dancing?” Kirishima repeats, confused. “Come on, bro. It’s his dad’s gym, he’s allowed to come.”
“He’s talking to Deku!” Katsuki barks angrily.
“Yeah, he’s allowed to do that too,” Kirishima says in a tired voice. “Don’t go making a scene. Izuku won’t like it and it’ll only bring problems to your relationship. No one likes a controlling boyfriend.”
Katsuki doesn’t answer, way too busy fuming and glaring daggers at Todoroki. Kirishima notices it and pulls him away from the window.
“Come on, let’s start warming up.”
“I want to watch the dance class.”
“And I want you to not make a fool of yourself because of jealousy,” Kirishima retorts, keeping his strong hold on Katsuki’s arm.
Even though he wants to argue, Katsuki holds his tongue and follows Kirishima. His best friend has always been a great supporter of his relationship with Deku, which earned him some credit.
However, even though Katsuki isn’t watching the dance class, his mind doesn’t stop thinking about it. He knows Todoroki is still talking to Deku—why wouldn’t he? Deku is cute and sexy and bright and funny and Katsuki fucking knows Todoroki is into All Might too so that’s certainly bound to come up. And Deku is incapable of not being nice to people, he’s just so fucking good that Katsuki knows he’s probably humoring Todoroki’s weird attempts at socializing.
Actually, Deku is nice to everyone he meets but Katsuki. It took him quite a while to get Deku to warm up to him. Remembering that opens up a wound Katsuki makes a bit of effort to pretend doesn’t exist: the fact that he likes Deku way more than Deku likes him.
Truly, Katsuki can’t fault Deku for that. He’s the one who pursued Deku relentlessly until he got a shot. And Deku was hesitant at best on their first date. Katsuki might have proved to Deku they can have fun together, but he’s not dumb enough to believe their feelings are on the same level.
Katsuki loves Deku, and Deku… Well, he probably likes Katsuki’s presence? Enjoys dating him? Hopefully?
It’s not like that’s a big secret either. Even Kirishima knows it and that’s why he’s on Katsuki’s case to not rock the boat of his relationship. Katsuki certainly knows that he’s already getting more than he should and that’s why he never pushed Deku too much, never told him he loves him. Being Deku’s boyfriend is enough for now. Maybe with time, Deku will grow to love him as well.
That was the plan anyway. Now, however, Katsuki wonders if he’ll even get time to make Deku fall in love with him. Because Shouto Todoroki is now in the picture and that asshole loves to take from Katsuki things he worked hard for.
When the dance class ends, Deku approaches to greet him with a smile and a quick kiss. That’s enough to help settle some of Katsuki’s darkest thoughts. Deku even asks him if he’s alright, noticing his weird mood, but Katsuki shucks it off with the excuse of the train having issues and being stressed about the championship. Deku then says he’s going to let Katsuki in peace to train and is going to watch from the window.
Peace is the last thing Katsuki has, though.
When the practice starts, Katsuki realizes Deku isn’t the only one watching it from the window. Fucking Shouto Todoroki is there by his side, and he’s still talking to Deku.
It’s impossible for Katsuki to pay attention to his katas after that. He feels wrong. There's a weird sensation going up and down his spine like he’s trapped. His anxiety is going haywire. And in his head, the thoughts are spiraling out of control as he comes to the realization that Deku is going to break up with him.
He looks so fucking happy to be talking to Todoroki. And why wouldn’t he? Todoroki is a pretty boy, with soft features and unique coloring. And he’s rich. He lives in a mansion with his father and siblings, not in the rundown apartment that Katsuki has. And, as socially inept as he is, Todoroki is actually a gentleman. He probably hasn’t made a single comment about Deku’s ass yet.
“Bakugou!” Todoroki sensei’s voice roars. “Your form is sloppy! Pay attention! There’s no way you’re going anywhere in the next championship like this!”
Shame joins in Katsuki’s myriad of feelings. Being called out in front of Todoroki and Deku makes the humiliation burn in Katsuki. He’s a fucking loser. He’s going to lose the championship and Deku. For fuck’s sake, Todoroki will take the championship out of him without even fighting in it.
Of course, the mess that’s going on in his head doesn’t let him fix his form as Todoroki sensei asked. After a few more shitty katas, Katsuki mixes up what he’s doing and ends up completely screwing the kata up. That’s enough for Todoroki sensei.
“Bakugou! Out of my dojo! If you can’t focus, you can’t fight!”
The snarl is ready, in the tip of Katsuki’s tongue. It’d feel really good to blow up in his sensei to vent some of his anxiety. Unfortunately, Katsuki knows better than that. He swallows down the yell, bites his tongue, and leaves with barely a huff.
On the way to the locker room, Katsuki doesn’t spare a glance at Todoroki and Deku. He can’t bear the look of them together or how they might be looking at him. Or not even looking at him, which would be worse somehow. Katsuki just wants to change into his casual clothes and get the hell out of the gym before he does something he regrets.
Barely a second later after Katsuki enters the locker room, he hears someone entering behind him.
“Kacchan?” Deku’s voice is soft and tentative as he approaches.
Katsuki’s throat is still closed. He feels like if he forces words out, they’ll come mean and bitter. So he keeps his mouth shut, going through the motions of changing clothes.
Deku also stays quiet, waiting for Katsuki to be done. The process of taking his gi off, folding it, finding his other clothes and such helps fill the silence for a while. But it’s a short process. Way too soon, Katsuki finds himself clothed, holding his bag, and still not knowing what to do or say.
“Come on,” Deku says, grabbing his hand. “Let’s go home.”
They don’t talk on the way home. Deku doesn’t let go of his hand, holding it all the way through the train station and the walk to his apartment, but they don’t say anything to each other. For Katsuki’s part, he doesn’t know what to say. For Deku’s, he just seems to want to give Katsuki space and quietly support him.
Which objectively makes things worse. If Deku pretended nothing was wrong and rambled away as if he didn’t care that Katsuki isn’t feeling good, it’d be easier for Katsuki to convince himself he’s not about to lose much when he and Deku break up. It’d be easier to pretend this isn’t a big deal; after all, they dated for less than half a year. It’s not like Katsuki will lose his childhood sweetheart or some shit like that.
It’s not a big deal. They’ve dated, they had fun, and now they’re going their separate ways. Katsuki’s life isn’t going to end because of it.
Except, it’s a big deal. Katsuki’s heart feels like it's being ripped out of his chest. Deku is everything he’s ever wanted and more. He’s been happier in these few short months than he’s ever been before.
And Deku is being so fucking kind. He gently rubs his thumb on Katsuki’s hand to help him calm down and he leads the way to Katsuki’s home as if he’s protecting him, and Katsuki wants to die because he doesn’t think he can go on living once he loses all of this.
“Kacchan?” Deku calls for him, eyes full of worry. “What’s wrong?”
Katsuki wants to cry, he feels like he’s breaking down. And whenever he feels wounded and vulnerable, his ugliest side comes forth in a vain attempt to protect his pride.
“Did you have fun flirting with Todoroki?” he hisses, full of venom.
“What?” Deku is taken aback, surprised.
“You think I wouldn’t see it?! At least have the fucking decency to break up with me before rubbing yourself all over some other guy!” His voice grows louder to drown the sound of his heart breaking.
“Are you crazy? What are you talking about?” Deku’s voice grows colder.
“I’m talking about you moving on to your next victim while I’m right there in the fucking room!”
Now it’s the turn of Deku’s eyes to turn cold. It’s an expression Katsuki hasn’t seen since they mended their relationship and it feels like another knife running through his heart. So he lashes out once again.
“I didn’t think you’d hang around longer than it took you to hop on my dick so I guess that’s how you tell me we’re done, hm?” he challenges.
“Kacchan, shut up,” Deku hisses, leaving no room for argument.
“Why? The truth hurts to hear?” he mocks darkly.
“Shut up!” Izuku yells. “Now go sit on the couch and don’t open your mouth until I say so!”
Despite all of his bravado, Katsuki is a weak, weak man for Deku. He shuts and sits down as ordered, waiting for what’s about to come. Deku walks out, but before Katsuki can wonder where he’s gone, he comes back with a glass of water.
“Drink it,” he orders.
Katsuki takes the glass and drinks it without argument. Only when the water hits his tongue is that he realizes he’s parched. He drinks it all in one go and then takes a deep breath when he’s done.
“Good. Do it again. Breathe,” Izuku says and Katsuki does it. “One more.” Izuku watches like a hawk the way Katsuki’s chest goes up and down. “And another.”
With every new breath, the anger leaks out of Katsuki leaving him empty, hollow. He almost feels like he’ll topple over like an empty sack.
“Feeling better?” Izuku asks, voice a little more gentle.
“No,” Katsuki answers, his voice coming out broken.
“Can you tell me where is this all coming from? Were you jealous I was talking to Todoroki?”
Jealousy seems too small of a word for everything Katsuki felt when he saw them together, but it’s the easiest explanation so he goes with “Yes.”
“I don’t like how you talked to me. As if I’d run away with the first guy that gave me attention.”
“Isn’t that what you did?” he retorts, holding on to every little bit of bitterness he has to fight off the emptiness.
“What do you mean?”
Katsuki shrugs dismissively, “That’s how you ended up dating me.”
“You think I only date you because you gave me attention?” Izuku asks, frowning.
“Don’t pretend that’s not what happened,” he says in a defensive manner. “I’ve chased you until you tired out. And we’ve been having fun or whatever, but I know how this is gonna go.”
“And how is that?”
“You’ll break up with me when you find someone better,” he shrugs again.
“Oh, Kacchan… You complete idiot…” Izuku sighs, shaking his head.
“Hey! I’m not—”
Whatever protest Katsuki is about to offer dies down as Izuku grabs him by the neck and pulls him for a kiss. Again, Katsuki is a weak, weak man when it comes to Izuku so he lets himself get lulled into the kiss, gingerly cupping Deku’s face back.
“I’m not going to leave you,” Izuku says the moment he pulls back, looking deep into his eyes. “I’m not going to leave you for anyone, better or worse. I’m not going to leave you even if you say mean things to me.”
“Deku…” Kacchan keens, brokenly.
“I have no idea where you got this idea that Todoroki is better than you anyway. Or that I’m only dating you because you tired me out. That’s so stupid, Kacchan.”
“It’s not,” he grumbles. “It’s—”
“Stupid. No one is better than Kacchan, right?” Deku gives him a half smile.
Katsuki huffs and adverts his eyes. He’s certainly not feeling like the best right now.
“And I’m not only dating you because you chased me. Actually, I think I’m the one who is chasing you…”
“The fuck?!” Katsuki turns his head to Izuku again to express his confusion.
“Well, I’m the one who invited you on our first date. I’m the one who initiated our first kiss. I’m the one who set everything up for us to spend our first night together. I’m the one who said we’re boyfriends…”
“But that’s only because I didn’t want to scare you off!” he argues.
“Scare me off? Kacchan, you waved every red flag possible before we even started dating! You scared me off enough for a lifetime and I still asked you out. I don’t think there’s anything you can do now that will surprise me,” Deku says deadpanned. “Hell, I’m willing to overlook even the fact you called me a whore five minutes ago.”
“I’m sorry…” Katsuki whispers, ashamed. “I don’t think any of that. I was just…”
“Just…?” Izuku pushes him.
“Scared,” he says, barely above a breath. “I don’t want to lose you…”
“Oh, Kacchan…” Deku cups his cheeks gently and makes their eyes meet. “You can’t lose me. You already won. I love you, Kacchan.”
Deku’s words piece through his heart and make a nest inside it. It curls around Katsuki’s ribs and squeezes his lungs a little.
“You love me?” he wheezes, in complete disbelief.
“I let you leave bite marks on my butt. Yes, I love you, Kacchan,” he says as if it’s the most obvious thing in the world.
Katsuki opens his mouth to say something but chokes on his words. All he can do is pull Deku to another kiss and a bruising hug. After being so sure he’d lose him forever, Katsuki grabs onto Izuku like a lifeline. Deku indulges his need for touch and they kiss until their lungs burn from lack of oxygen. Then, Katsuki pulls back and says everything he should have said already.
“I love you. I love you so fucking much. Don’t ever fucking leave me. I’m sorry I’m an asshole, I’m sorry for all the shit I said. Just please don’t leave me,” he says, stealing kisses between words.
“Silly Kacchan,” Izuku says fondly. “I’m not going anywhere. I don’t want to be anywhere.”
At that moment, Katsuki’s couch is the most comfortable and safe place in the world. They squeeze in there together, cuddling as close as humanly possible and trading sweet kisses. Words don’t seem to be needed anymore; they heal their wounds with touches and warmth.
And when Izuku decides Katsuki had enough pampering, he brings back an issue for discussion.
“I don’t want any more jealousy tantrums, alright?” he says. “If you’re feeling insecure about something, just tell me. We can work things out. But I’m not going to stop talking to people just because you want me to.”
“I know…” he sighs. “But did you have to chum up with fucking Shouto Todoroki?”
“I don’t understand. Todoroki said you two have been friends for ages…”
“I hate his guts. And everything else too. Especially his hair. That’s a fucking stupid hair,” he grumbles.
“I feel like there’s more to this story, but you can talk about that later,” Izuku says, gently carding his fingers through Katsuki’s hair. “But just so you know, we were talking about you. I asked him what to expect of your championship fights because I’m a bit stressed about it, and he told me some stories about when you two competed together.”
“He must have only said shit. Forget everything he told you,” Katsuki grumbles. “But why are you stressed?”
“It’s a fighting competition… I don’t want to see you getting hurt,” Izuku confesses. “And you’ve been slacking off on your practice to spend time with me… I’m afraid this might be an issue in the championship and you decide I’m getting in your way.”
Katsuki raises his head to pin Izuku with a glare. “No fucking way. If anything, it’s the damn practice that gets in the way of my time with you.”
“Kacchan…”
“I mean it. And I meant it when I told you I’m going to win the whole thing for you. You give me more incentives to win than I ever had before.” Katsuki gives Izuku a quick peck on the lips. “I’m going to be a winner to stand by your side.”
“You’re so cheesy,” Deku says with a smile.
“But you love me,” Katsuki smirks back.
“I do. I love you a whole fucking lot,” Deku agrees. “Fights and all. Exactly how you are.”
Katsuki hides his face on Deku’s chest and squeezes him in a hug.
“Now who is being cheesy,” he grumbles, embarrassed.
“Me. And you love me,” Deku parrots his words, and Katsuki decides to do the same.
“Yeah, I fucking love you. Fights and all. Exactly how you are.”