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Time after the War has been going slowly. His arm is still shit so most of the training he has to sit by the side. And it fucking sucks. It doesn’t help that Izuku is no longer giving his all. Even if he beats everyone in their class, it shows.
Katsuki thinks that part is impressive. The nerd is so fucking strong that even when using his quirk for a minute, he can beat everyone. Izuku still knows when to choose the best moment to use OFA.
But that’s the only thing he likes from the current Izuku. Nothing else about the nerd is like before or even during the War. Izuku looks like a shell of his older self. And it shouldn’t matter to him, yet it does.
Last week Katsuki realized that he no longer gets any hint of Izuku’s feelings from his scent. That used to be a constant in his life. Same as all the ‘Kacchan’s’, the eyes boring into his back, the constant praise. None of that is there anymore. He does get an occasional ‘good job’ when he manages another milestone in his recovery, but even those seem to lack any real feeling.
Truly, he shouldn’t care. But yet again, when Izuku slams another one of their classmates down and sits beside him to drink, it hits him.
There’s barely any acknowledgement that Katsuki even exists. The nerd's scent is dull. Even when the guy is sweating and the back of his suit is soaked, there’s nothing.
Katsuki wrinkles his nose. He observes Izuku, looks at the way his Adam's apple bobs while he drinks, watches when he swipes his lips to his sleeve and closes his eyes. Katsuki doesn’t even hear it when Aizawa calls for him. He’s too focused on keeping a watch on Izuku.
And from that day onward, all he does between his own recovery efforts and workouts is observe Izuku as much as he can. But Izuku is elusive. He remains in his room most of the time and doesn’t stay for movie nights, nor does he want to spend time with his friends when they ask.
Obviously, Izuku is not the only one not doing great. All of them have issues after the war, yet everyone else seems to be at least trying to get back to normal.
Izuku just exists. And that’s driving Katsuki up the walls.
This is what he hoped for half the first year, but not what he wants now. Izuku is more to him than just a pebble in his path. More than a random alpha schoolmate. More than a childhood friend.
Katsuki shakes his head. That’s a little bit too much. Izuku is a childhood friend and his future hero partner. That much he’s settled in his head a while back. He’s working his ass off for their future, but why isn’t Izuku?
Katsuki growls as yet another day passes and he can’t catch a whiff of Izuku’s scent. They don’t even talk anymore and he needs to know why.
It’s time to get to the bottom of this.
---
The door to Izuku’s room creaks ominously as Katsuki opens it. The room is unchanged from last time: All Might memorabilia all over the walls and shelves. Dirty clothes scattered on the floor near the foot of the bed, both tables full of notebooks, paper and books. Like it should be.
Except he knows Izuku hasn’t touched his notebooks in a while. They must be from before everything went to shit.
Katsuki stalks around the room, looking for any clues. He’s not even sure what he’s looking for, just something that would indicate Izuku was still his old self. The room looks lived in, yet not. Like it’s standing still.
His finger swipe the surface of the desk to confirm what he thought. Definitely dusty. Even on top of the papers right before the chair.
Katsuki grits his teeth as he finds more and more evidence of the fact that only the damn bed is used. The clothes seem washed, but everything else is covered in dust.
Frustration builds up in his gut and hands raise to his hair. Katsuki pulls on it hard.
“Fuck,” he growls, sitting down on the edge of the bed.
And there it hits him. Izuku’s scent. Still not what it used to be, not even close. He sniffs the air, not stopping even when his face is flat against the pillow. Involuntarily, Katsuki relaxes. This is what he’s been missing.
Katsuki takes a lung full of the scent before getting up. His mind is comfortably numb and content.
---
From that day onward, his mission has a new pit stop. Izuku’s room.
He doesn’t get to go daily, but he tries as often as he can. At one point in the showers he even accidentally walks into the nerd, face hitting close to the uncovered scent gland in his neck. Nothing. Such a faint scent he can’t believe it. With a bark, he tells Izuku to fucking watch it and pushes the nerd to the showers where he himself already came from.
Katsuki soon realizes that going only every few days isn’t enough. And the amount of scent he got from the pillow and the bedding isn’t satisfying enough. He needs more.
His next plan?
Go to Izuku’s room while the nerd is sleeping. Should be easy enough.
Katsuki needs a few weeks of hanging outside Izuku’s bedroom window to get a good understanding of when he actually sleeps. It’s not easy and he gets continuously grumpier after getting so little sleep it's messing up at his schoolwork. At least, he hopes it’s worth it.
Soon enough, Katsuki’s prepared. Aizawa is putting them through hell on Ground Gamma and Katsuki is energized by the thrill he feels. He’s going to get a stronger sniff of that delectable pine and summer rain scent soon.
He catches onto his thoughts and growls. No fucking way he thought that the nerd smells good. No. It’s just that he misses it.
The rest of the day he prowls and keeps tabs on Izuku’s movements. The alpha showers after training is over, hides in his room, but does come out for dinner. Katsuki joins in just so he can eavesdrop on the discussion. Turns out the nerd is late on an assignment which makes the corner of his lips tug up.
It’s guaranteed that Izuku will be exhausted if he has to try to study the rest of the night after the amount of training they had today. Katsuki gets up and stomps his way to the kitchen to wash his plate. He glares at Izuku’s direction, which nets him a small smile in return, before he continues back upstairs.
Katsuki eyes the clock constantly. He’s been asking updates from Ponytail via text since she volunteered to help Izuku out. He finally receives the text he’s been waiting for all evening. ‘He still has things to do, but he keeps passing out while sitting, so I commanded him to bed. He’s going to be fine, Bakugou.’
Katsuki scoffs and sends a simple ‘thanks’ as a reply.
Almost an hour passes by before he gets up from the bed. The nerd should be passed out by now.
Standing at the nerd’s door, sweat gathers into his palms, his body growing more and more restless as saliva pools into his mouth. His body reacts more and more each time he goes to this messy room. But he can’t stop now. He needs to get to his goal. Bakugou fucking Katsuki doesn’t waste his time.
Alpha is not a waste of time.
Katsuki groans. His alpha is usually very dormant. Only coming out in moments Katsuki doesn’t really want to think about.
He tries to be silent just in case Izuku happens to be awake. But to his luck, the room is dark and quiet. Katsuki closes the door softly and stalks towards the bed. He swallows. Izuku’s scent is faint, but it’s there.
He kneels down, trying to get as much of the scent into his lungs as he can. It’s weird how his body relaxes quickly, yet there’s a weird buzz at the back of his head. It’s pleasant.
When Izuku doesn’t stir, Katsuki dares to cross his hands on the edge of the bed as he lays his chin on top. He doesn’t mean to close his eyes, but the way his body is lax, he just can’t help it.
Katsuki wakes up to Izuku’s hand smacking him in the face. He’s ready to bark a curse, but catches on to what is happening fast enough.
Shit.
After making sure Izuku’s not awake, Katsuki gets up. His gland grazes Izuku’s by mistake and Katsuki’s whole body shudders. He has never really scented with the nerd. First, it was about his dignity not letting him and after the war…
So this? It shocks Katsuki’s whole system into gear. It feels like everything he’s been missing is finally there. His knees almost give out from the intensity. He tastes venom on his tongue.
Fuck. He has to leave.
Katsuki bolts out of the room, stumbling on his way and barely managing to close the door silently. His heart is beating so fast, his heart monitor gets louder and louder. He stops by the elevator and puts it on silent.
Once in his room, Katsuki slams the door shut, leans his back on it and falls to the ground.
He has to control his breathing. He hasn’t even realized how much he’s sweating. All he hears is the loud beating of his heart in his ears. There’s a happy buzz somewhere at the back of his head. It’s trying to push forward and Katsuki’s throat vibrates.
What the hell is this?
He’s so… confused and conflicted.
Even more when his breathing steadies and he knows what the vibration is. He’s purring. He can hear it. Low, steady sound. He hasn’t purred since he was a pup. Katsuki has only let his body barely chirp when his parents happen to compliment him. Otherwise, he never lets his instincts take control.
So how is this happening?
Katsuki tries to stop purring, but his mind is still buzzing with… Izuku.
Maybe his investigation is going a bit too far. This isn’t what he was trying to do. Though at this point, he isn’t sure what he is doing.
With a groan, Katsuki smashes his forehead into his knees. First things first. He has to stop purring. Then he needs to come up with another plan to figure out what’s wrong with Izuku.
---
Katsuki tries his best not to go to Izuku’s room anymore. Yet he can only barely take one day before he becomes anxious. He can’t even focus on his weights and controlled quirk usage training.
If he were to be in a battle, he’d surely make a lot of mistakes and that won’t do. So Katsuki sneaks into Izuku’s room yet again. Same position on the floor, just to be close enough to Izuku to get a good whiff of his scent. It relaxes his anxious body instantly.
Katsuki sighs, deep and content. He should be fucking annoyed. Why the hell does Izuku’s scent have this kind of effect on him? It’s a question he pushes deep down.
Until a week passes. He's at the nerd’s room and the scent alone isn’t enough.
Katsuki groans as his palms sweat and his mouth dries up. Even his fangs ache, which can’t be a good sign. His rut isn’t supposed to hit for months.
Alpha will take care of us. Need alpha. Closer…
Katsuki jolts. Not this again.
And what the hell does that even mean? Katsuki doesn’t fucking need an alpha. His instinct must have broken with his arm.
Yet Katsuki can’t deny the pull. The fact that the voice in his head is right about something. He does need that scent and right now; the amount he’s getting is no longer enough.
Katsuki huffs, taking in Izuku. The nerd is sprawled on his back, looking like an ugly starfish. He clenches his fists, claws pushing into his skin. Izuku’s arm — his scent gland is right there. And Katsuki wants to touch it. He wants to think it wasn’t anything pleasant and yet… He craves that feeling again.
Hesitantly, Katsuki lifts his arm and brushes his gland over Izuku’s.
The effect is instant.
A deep, content sigh escapes his mouth and Katsuki lets himself relax. The buzz is pleasant and his alpha brain is chirping happily to him.
To avoid falling asleep here again, he gets up. His legs are a little wobbly, but he manages. If scenting is enough, maybe he can keep doing that every time and then just leave?
It’s worth a try.
---
“You’re such an idiot, you know that,” Katsuki whispers. He rubs his wrist along Izuku’s lazily.
He’s been scenting with the nerd almost every other night. Recently, he has started to let his thoughts out like this when the nerd is asleep.
“You don’t smile. Well, you do, but it’s so forced even a moron can see that,” Katsuki huffs. He’s close to falling asleep again. Rubbing their glands together for longer has become a routine. It’s like a drug Katsuki can’t live without anymore.
“Yet you fight impressively. You’re—” Katsuki bites his lip. “Amazing.”
Katsuki groans, his forehead hitting the soft bed.
“I know you can’t be happy with losing One for All. You don’t let it show, but… I know. If it’s only because you don’t want to upset others, then at least talk to your therapist about it. It’s been so long, talking with them should’ve helped already… Yet you—” Katsuki grits his teeth. “You’re a ghost. Not my Izuku.”
My Izuku?
Shit. Katsuki almost spits. “What do I care? I shouldn’t, right? But it stings, you know. You used to always be on my heels and me on yours…”
Katsuki sniffles. He didn’t even realize he'd started crying. What the hell?
He swipes his eyes into his shirt. “Maybe I’m selfish to want us to compete forever. But it hurts like this… Izuku. It’s fine if we don’t, but at least— Fuck.”
Katsuki inhales deeply. “At least be fucking happy with what you choose. Okay? Don’t be like this. Please. Fuck. All I want. I read it’s fucking dangerous if there’s no scent and you, you bastard, barely let any out when you sleep. That’s not healthy. I could tell Aizawa.
“But I’m not. Until I think you’re actually going to drop.” Katsuki sighs and gets up, wiping his eyes one last time.
“You know why, Izuku?”
He stands there, silent for over a minute. Just watching Izuku sleep in his stupid position. He does look peaceful like this. Almost normal.
“Because I trust you.” And with that, Katsuki smiles, albeit faintly, before turning around and leaving Izuku for the night.
---
It’s a very normal Friday. Yet this time when Izuku sits close to him to drink water and give room for others in their class to fight, he smells it. A rich earthy scent, mixed with a faint hint of strawberries.
Katsuki’s head turns so fast his neck cracks in the process. Is this for real?
It’s been over a month since Katsuki has started to pour his heart out at least weekly in Izuku’s room.
His heart beat is catching up and when Izuku turns to look at him, it feels like his heart stops.
Because Izuku is flashing him a small, sheepish smile, and it’s… genuine.
Katsuki wants to look away, but he can only stare dumbly as Izuku leaves the water bottle on the ground and returns to the arena.
What the fuck just happened?
---
After that day, Katsuki notices the little differences.
Izuku doesn’t smile often, but whenever their eyes meet, he does. And Izuku is around his friends more often now. Not nearly as much as he used to back in first year, but he’s there. He converses.
There’s even some banter between him and Izuku. And Izuku keeps asking about the progress with Katsuki’s arm and heart.
Katsuki can’t look away, nor can he stop going to Izuku’s room.
“I don’t know what happened, but... Fuck. It’s about time,” Katsuki murmurs as he lets their wrists touch yet again that night.
---
Things with Izuku are slowly getting better. Today was the first day Izuku even asked if Katsuki needed help with his training. Katsuki refused, getting too flustered over the sudden offer.
Something else is different tonight, too.
Izuku’s scent is heady and intense in a matter of minutes after Katsuki started his scenting ritual. It’s a scent Katsuki hasn’t smelled on the nerd in a long time. His ears burn hot from the mere possibility.
“You dare to have a horny dream when I’m here? Damn nerd,” Katsuki scoffs. His own dick twitches involuntarily in his pants. Fuck.
He should leave. But his stupid alpha is firmly against it.
Alpha wants us! Wants to claim us!
“No, stupid fuck, he doesn’t,” Katsuki hisses as he rises up abruptly. His dick is already half hard in his pants and one glance over at Izuku confirms the nerd is hard, too. Damn pervert.
His alpha tries to get him to turn around, but Katsuki doesn’t. With a determined step, he walks out of Izuku’s room and stomps into his own.
---
It keeps happening.
At first Katsuki just rushes out after getting the scenting done.
Soon he starts staying a bit longer again.
He’s scenting with the nerd while his other hand palms the tent in his pants. He just can’t wait till he’s in his room tonight.
And frankly, his thoughts have been spiraling. He can’t look at Izuku without heat rising along his neck. His heart picks up speed every time the nerd looks at him. He’s a fucking fool.
He’s an alpha for fuck’s sake. Yet his stupid instincts and his body want another alpha.
He’s never even thought about such things as mates. Or even sex.
But when the nerd is smelling so delectable, laying down, so pliant, ready to be used and horny… Katsuki can’t help it. He’s thought about Izuku touching him way too many times now.
Katsuki groans as his dick leaks pre-cum through his pants. Slowly, he snakes his hand into his boxers and squeezes the base of his dick. His knot is already forming.
His hand starts moving along his length slowly, teasingly, while he watches Izuku. He wants to keep scenting, but he needs his other hand.
A low whine escapes Izuku’s mouth when their wrists part and for a moment Katsuki freezes. Did Izuku wake up?
Izuku seems to be squirming a little, his hips bucking up a few times. Oh.
Katsuki hasn’t stayed up to see if Izuku ever wakes up to his horniness. Does he come in his dreams? Is the friction from only his sleep shorts enough?
Katsuki can’t imagine it is. Unless his dreams are wild.
He swallows thickly, hand returning to its previous movement on his dick. He lowers his pants with his other hand so he can get a better access to his hole.
When he pushes one finger in he curses. He forgot to bring lube. Fingering isn’t as comfortable as usual like this, but watching Izuku squirm and rut up helps. Katsuki can picture himself on top of Izuku, the nerd thrusting into him as they both pant and whine.
“Oh fuck,” Katsuki curses, his cum filling his palm without warning. He didn’t even realize he was close.
He feels a little gross doing this while Izuku is asleep. Luckily, he didn’t get his cum on the floor, but his hand and pants are sticky.
With wobbly legs, he gets up so he can clean himself. He has to figure out something to clean himself with next time. Also lube.
Katsuki blushes at the thought. Next time? He groans. Judging by how it’s been going so far he’ll be back in two days. No matter what he tries to tell himself.
---
Izuku still doesn’t seem fully happy, but he’s improved so much.
Katsuki thinks he has his friend back now. There’s nothing missing from what he thought they’d be after the war. It’s definitely a friendship.
Katsuki is a little ashamed of what he does at night. But he can’t stop. His whole being keeps getting pulled towards Izuku.
Lately, Katsuki has been getting bolder and bolder. He’s even gotten into bed next to Izuku and rutted against his side. Fully clothed, so he doesn’t get his cum on the nerd’s clothes.
Still, he wants more. So tonight, once he’s in the room, he pulls off his sweats and boxers before settling into the bed. He yanks at Izuku’s sleep shorts just enough to reveal his cock, already half-hard.
Katsuki snorts. “Didn’t even scent you yet. Horny nerd.”
He’s been dreaming about touching Izuku for so long. And today he has to.
He palms at Izuku’s cock, eyes fixed on the nerd's face. He needs to be careful. Sometimes Izuku stirs and it seems like he awakes, but it hasn’t happened yet.
It’s kinda thrilling. He doesn’t want to get caught and yet he’s dreamed about it. About Izuku waking up in the middle of it all and taking him.
Katsuki whines as he lifts his leg over Izuku and straddles the nerd's hips with his legs and their cocks graze each other. He picks up the lube, squeezing a little bit into his hand, warming it.
He grabs both of their cocks into his hand and he starts rutting with his hips. The glide between his smooth hand and Izuku’s hard cock is perfect.
He whimpers at the emptiness in his ass, muscles constricting. Once he gets two fingers in, it’s much better. It’s harder to move like this, but his hips are still strong as ever. He hasn’t been slacking with any of the workouts he’s allowed to do.
“Oh f-fuck,” Katsuki pants, his hips moving faster. “Alpha– f-f-fuuuuck.”
Izuku squirms under him, his hips moving along with Katsuki’s, and it feels too fucking good. Katsuki wants this to last longer, but he can’t help it. He feels Izuku’s knot swell and Katsuki fucking whines. He wants it in him.
He moves his hand lower, making sure to catch their knots in his tight grip.
It doesn’t take long until Izuku comes, thick ropes of cum spraying into his chest. Katsuki can’t look away. It’s better than he even imagined. So fucking hot. He ruts forward one last time until his own body gives into the pleasure too.
He wants to fall down onto Izuku’s chest. Instead, he moves his fingers out of his ass to help squeeze their knots.
Oh fuck.
Locked in with his alpha. He really isn’t. His hole is empty, but he’s satisfied. Mainly because Izuku’s scent is perfect, satiated and relaxed.
Katsuki’s body is so lax he lets go. Even if his legs are jelly, he cleans them both up, snapping Izuku’s sleep shorts back up. He planned this well enough so everything is smooth and quick.
Yet when he needs to leave, his heart squeezes in his chest. He wants to stay cuddled with his alpha.
He settles for scenting with the nerd quickly, before heading out to his own room.
---
Weeks pass and Katsuki has an evaluation for his heart. It’s during a break week so he stays at home with his parents longer than just over the weekend.
He gets a little irritated over the fact that he doesn’t get to scent with Izuku, but he manages. His parents' scenting pleases his raving instincts fine enough.
Once he gets back to school grounds and into the building he is instantly stopped by Izuku.
“Kacchan!” the nerd runs to him. He fidgets a little in place. “How was it? Everything okay?”
“Yea, yea. The hearts fine. I can up my training again. You better watch out,” Katsuki grunts.
Izuku smiles, bright and happy. Yet his scent is a little anxious. “That’s great. Looking forward to kicking your ass again, Kacchan.”
Katsuki scoffs and turns to continue his walk towards his room, but Izuku grabs his hand. Katsuki doesn’t even have time to react before Izuku has lifted his jacket sleeve and is brushing their glands together.
Izuku’s scent relaxes him and all the tension in Katsuki’s shoulders releases instantly. He has missed this so much.
“Um. S-sorry. Hope that was okay. I know we haven’t really been— uh, oh crap,” Izuku seems to panic before Katsuki has an opportunity to do so himself.
Katsuki’s ears burn and he grunts. “Whatever. We’re friends, so it’s okay. Stop worrying.”
Katsuki wants to say so much more, but he doesn’t dare to. His heart is beating so fast.
Shit. He can’t let the nerd smell him like this.
“See ya.” Katsuki doesn’t dare to look at Izuku. As he starts to walk fast towards his own dorm room, Izuku yells something after him, but he can’t hear what it is. His heartbeat is way too loud.
---
When Katsuki is almost ready to go back to their night routine, Izuku scents him again.
And Katsuki is happy. But it also makes him content enough that his urges to go to Izuku’s room lessen just enough that he can reason with his alpha to stay put.
It should be better like this. Because now it truly feels like they’re where they’re supposed to be together — what Katsuki thought it would be like after the war.
Yet his scent sours a little involuntarily after they scent and Izuku goes to do whatever it is he does.
One night he can’t sleep. His body is sweating, and he’s painfully hard in his pants. Katsuki tries to relieve himself like he usually does, but it doesn’t help. There isn’t a single thing smelling of Izuku in his room, so his brain keeps fighting against his need for release.
He’s a little hesitant before giving up and grabbing the usual stuff he takes to Izuku’s room. He doesn’t think he really needs the lube since he already fingered himself for what feels like hours.
Once at Izuku’s room, he breathes in the nerd’s scent that now always fills the whole room. His dick twitches as Katsuki puts lube and wet wipes down onto the bed.
Izuku is in his usual position, pretending to be a star so Katsuki settles on top of him. It’s a familiar position, and it’s easy to do like he’s used to. He pulls down Izuku’s pants, slightly scents their wrists and starts moving his hips.
Katsuki keeps his hands down on the bed, only using his hips to rut against Izuku. He’s learned to love this too. It’s not nearly enough friction, but it’s so good.
He needs his fingers inside, but his hips are too desperate to move. He lowers his head down to Izuku’s chest. The scent there is so heavy Katsuki gets almost dizzy. He has to get closer.
He moves slightly, just enough so his nose is against Izuku’s neck gland. It’s oily and wets his nose, but Katsuki doesn’t care. He’s so drunk over the scent he’s rutting against Izuku lazily, tongue coming out to taste the oils on the gland.
Next thing Katsuki realizes is there are hands on both of his asscheeks and Izuku is speaking.
“K-Kacchan— O-oh my god.”
Katsuki freezes. Hands still on the bed, he lifts his head and torso up in panic.
Izuku’s eyes are closed and he's rutting against him, spreading his ass and— oh fuck.
One of Izuku’s fingers circle around his rim.
He should leave. If Izuku is dreaming, this is wrong. But if he’s awake…
Ah shit. He wants this so bad. He’s dreamed of this for months. Of Izuku touching him all over. With his hands, his lips, his teeth and his stupid, big cock.
When Izuku sinks both of his index fingers inside his hole, Katsuki moans.
“I-Izuku,” he pants, “F-fuck. You better not be asleep. Ah—”
Katsuki’s hips jolt forward when Izuku’s lips are suddenly on his chest, tongue licking over his sensitive nipple.
“T-that’s not an answer, nerd,” Katsuki huffs, getting lost in the pleasure.
Izuku mumbles against his nipple and Katsuki snorts. “Clear words or I’m going back to my, hnngh— room.”
The tongue separates from his chest. “‘m awake Kacchan. Been for months.”
Katsuki forgets how to breathe. Months? So Izuku has just been laying there, letting Katsuki do as he pleased and all the shit he said—
The blush on Katsuki’s face deepens. He should be angry, but he can’t be. Izuku wants this, not just his stupidly horny body.
“Went to therapy. Worked things out… Because Kacchan said I—” Katsuki cuts off Izuku’s rambling with his hand over his mouth.
“Fuck. I get it.” Katsuki is blushing and very pleased. So pleased he starts to purr in the middle of it all.
“O-oh my God, Kacchan.” Izuku’s hips move up. “Can I put it in? Please? Kacchan?” Izuku whines, and oh, does Katsuki’s hole grip Izuku’s fingers tight at that delicious sound.
He should say no. Should walk away and put a stop to this. But he wants Izuku. He can’t deny it. Hasn’t been able to in a while.
“Yes, nerd. Fuck. Hurry,” Katsuki huffs and moves his hips against Izuku’s fingers.
Izuku doesn’t need more convincing to get his fingers out. Izuku moves, slots their bodies together perfectly so the head of his thick cock is poking at Katsuki’s entrance.
Katsuki sinks down before the nerd or himself can say something, or hesitate. He feels so full, there’s no way he’s going to last long like this. He’s been hard for far too long.
“Fuuuuuck,” Katsuki groans as he lifts his hips up and sinks back down. Izuku’s hands are on his hips, gripping hard, and Katsuki is glad he’s pushing up to meet him.
It feels perfect. Like everything he’s been missing. Almost.
Our alpha. Knot us and claim us.
Katsuki growls a little, making Izuku whine. “S-sorry Kacchan, is it bad?”
Katsuki glares down at Izuku and shakes his head. “No dumbass. It’s perfect. Fu—” Katsuki moans at the glide of Izuku’s cock against his prostate. “It’s just my dumb alpha.”
“Okay,” Izuku keeps the thrusts steady. “M-mine’s acting up too.”
Katsuki doesn’t want to talk anymore and his legs are starting to burn. He lowers himself down against Izuku’s chest, letting him do most of the work. And oh does it make it all much more intense. He can focus on Izuku’s movements, his breathing and— scent.
“K-Kacchan, g-gonna—”
“Y-yea, me too. Fuck, keep going,” Katsuki grunts, sucking on Izuku’s gland as he feels the knot bullying his entrance. It seems like Izuku isn’t trying to push it in.
A little frustrated, Katsuki bites hard on Izuku's gland and pushes his hips down with force.
Izuku’s knot slots in, and it’s enough to send them both over the edge.
Katsuki lets go of Izuku’s gland and instinctively starts to lick the blood on the wound. He didn’t bite deep enough to make a permanent mark, which makes his alpha whine. Calm down. You get to later, you little bastard.
Alpha didn’t claim us. Doesn’t he want us?
Katsuki groans as his scent sours. It’s illogical. He doesn’t think for a second that Izuku doesn’t want him and yet his alpha makes him doubt things.
“You didn’t bite me,” Katsuki mumbles against Izuku’s neck.
“W-what? Kacchan— that’s— Oh my god,” Izuku whines and hides his face in the crook of Katsuki’s neck.
Katsuki pushes himself up, so Izuku can’t hide. He doesn’t say anything, but his scent and the pout on his face must give out his thoughts because Izuku continues.
“It’s not like I don’t want to. Actually, I would be more than happy to claim Kacchan. Make him mine,” Izuku says. His hands lift up to Katsuki’s neck and he pulls the man down so their noses touch. “Next time?”
Katsuki grunts. It’s not what he wants. “‘s not fair.”
Izuku’s features seem to melt even more and he laughs. Short and airy, warm. “Right. You did bite me. Guess I do need to return the favor, right, Kacchan?”
Katsuki only nods, and Izuku is already pulling his head down. Izuku’s nose tickles his gland, the air from Izuku’s hot, opening mouth makes him shiver. Izuku bites down, just enough to leave a matching temporary mark on him.
It sends a wave of pleasure through his body as he collapses against Izuku, content and happy. He can’t stop the purrs that reverberate from his chest and vocal cords, and this time he doesn’t want to.
Izuku is the only idiot he can allow to hear such embarrassing sounds.