chinanigans | BKDK: ABO

BKDK: ABO

[It was normal for you to start presenting as you started highschool, therabouts. But Izuku...he hadn't yet. He was a late bloomer, as he seemed to be with everything, which made him wonder if maybe he wasn't just a Beta or something after all.

Ever since they were kids though, Katsuki would drill it into him that he'd only ever be an Omega. He was too wimpy and weak to be anything but. So why hadn't it shown up yet? Surely it would have by now, especially now that others are presenting all around him, Omegas experiencing their first heats before being put on supressants, and the same with Alphas and ruts.

But there was no change for Izuku. At least not until second year.

It had been a normal day, or so he thought. No abnormalities, nothing really out of the ordinary as he entered school grounds and headed towards his homeroom class. Once he actually made it inside though, something strange hit him. All the people he could normally smell throughout the day...their scents had amplified tenfold. He could immediately scent each and every one without having to look at them.

Alpha. Alpha. Omega. Beta. Omega.

He stepped past the threshold into homeroom, assaulted by too many smells and too much noise. He felt...hot, and overwhelmed, bringing his sleeve to his mouth for a moment for a breather as he sat heavily down in the seat behind Katsuki's. He hadn't come in yet...]

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[its okay hes got a Self Lubricating Asshole:tm: he'll be fine

That said... it's definitely a lot. The moment he feels Deku's cock push in, his breath feels like it's been punched out of him. It's not really the feeling that gets him, it's the mere thought that he's about to be fucked that really sends him over.

His eyes shoot open when he feels the head of his erection pushing against his walls ever so slowly, and the sudden jerk of his hips has him gasp a little bit himself. A gasp that quickly starts to turn into panting, as it suddenly hits him that this is actually happening. That he is, right now, pinned against the bathroom door by Deku, and that he's about to take his seed. He doesn't actually know if he'd get pregnant or not, since he's a guy, but he also never bothered to look into it that much.. all he knows is that Alphas were meant to fuck, and Omegas were meant to be fucked. Anything that may happen from this is barely even a concern when he was literally made for this, and when it feels so goddamn good to have it happen.

He doesn't even care if he ended up having little Dekus after this. He just wants it... so bad.

Bad enough that he ends up letting out a high, raspy sounding whine and his hands clutch onto Deku's blazer in an attempt to hold onto something.]

[Neither of them are going to last very long, but that's probably for the best considering the fact that they're doing this in the bathroom at school. No stopping now, and no time to dawdle.

Izuku hisses against Katsuki's neck in response to that whine he utters, pausing just long enough to acclimate to the feeling of everything so tight around him before he dares to move. He eases his hips back a fraction, inching back forward with a barely stifled moan, trying his hardest not to let himself get too loud lest they both get caught back here.]

[Is being quiet part of this? Because Katsuki doesn't even have that on the mind, as Deku starts to move his hips. Every part of him feels so sensitive for some reason, so much more than it's ever been and this is.. the first time anything has been inside of him at all. So it's no wonder he's so affected by how it feels, and lets out a groan louder than he probably should.]

Fuck.. fuck...

[It probably should be, if only for their own protection here. Not that they won't be outed afterwards if they end up going too far...which there's almost a non-zero chance that will happen. Izuku can barely speak at this juncture, too absorbed in his task ruts his hips up hard into Katsuki, heedless to how fast or how sudden he moves. All he can think is that he needs to move, and he can't stop until Katsuki has been knotted.]

[A gasp makes itself past Katsuki's throat, as Deku suddenly shoves himself inside of him deep and hard. He has to bite back tears stinging the corners of his eyes, and to get back at him he suddenly chomps onto Deku's neck with his sharp teeth, and digs his claws into his back.]

A-hhk-!

[Oh. That...wasn't expected.

The bite causes Izuku to go rigid, his eyes snapping open as his fingers dig harshly into Katsuki's sides in an echo to the nails in his back, and almost immediately he starts to snarl viciously at the act of defiance (is it defiance, really? he can't comprehend it as anything else, with his Alpha instincts taking over).

He knows what to do- and where it is- before his brain can catch up. He leans in and sinks his teeth gingerly into Katsuki's neck in turn, right where that gland is that, if firmly bitten into, will claim him. He's not ready for that though, not yet. This isn't a bite of pleasure, but instead a firm grab to cow Katsuki, in other words.

Putting him back into his place.]

[Well. Fuck.

It almost take his breath away when he feels Deku's teeth gently tease his neck, almost as though he were about to make him his. It gets his heart pumping quickly in his chest, but he doesn't budge, keeping his teeth firmly into Deku's skin with a growl in protest deep in his throat.

His body, however, tenses in nervousness at the threat presented to him. Tightening around Deku's cock.]

[Okay, fine.

What if he bites down even harder? Not enough to break skin, still, but getting closer all the time...]

[u wont do it no balls]

[Then Izuku snapped his neck, killing him instantly-

..No, he just bites even harder, teeth sinking into the flesh of the gland. It's Katsuki's last warning to let him go.]

[Okay.. he knows he means business, with the fact that he's not letting up even a little. He's even digging his teeth even more against his neck, which has his insides pulsate in a way that's hot and very uncomfortable. And.. wet. It's like his body is begging Deku to do it, but he, himself, is admittedly a little scared. And too prideful to want it.

But even then, the idea of letting Deku totally dominate him-- even at the cost of getting claimed-- is enough to keep his jaw firmly clamped on Deku's neck. But his limbs have started to quiver, just a bit.]

[This is the moment where, in any other circumstance, the alpha instincts would completely take over and Izuku would lose the remaining shred of his own agency, claiming Katsuki for his own.

But with what coherency he does have left, he forces his head back, opening his mouth to pant harshly against Katsuki's damp skin.]

T-tell me I can do this. Please.

[He'll never forgive himself if he marks Katsuki outside of explicitly given permission to do so.]

[...the fuck?

Why is he asking if he can do this? He's an Alpha-- it's pretty much what he was made to do. If the situation was reversed, Katsuki would take him in a heartbeat, no questions asked so why...

Ugh. It's because it's Deku. He's always been like this. Always too conscious of Katsuki's feelings, the only one who seems to really know them and it drives him absolutely insane. The fact that no matter how hard he tries, he can't seem to close himself off from Deku.

He's like an open book to him, written in a language that only Deku can read. And because of that, he's asking first. Fighting instinct just to make sure Katsuki is okay with it.

It pisses him off.

But at the same time, it gives him a second to really think clearly, and he opens his jaw to let go of Deku's skin, panting in tandem with the other boy. And after a moment of silence, he finally speaks up in a voice raspy and soft.]

....do it. If you're really an Alpha.... do it.

[Scarcely will the words- more like a command than permission, but it's close enough- leave Katsuki's mouth before Izuku's own is to his skin again, lips working briefly to relocate the exact position of the gland beneath before he unceremoniously fits his teeth there and bites.

He bites with considerable force, this time. Plenty enough to drive his canines down into Katsuki's neck, puncturing the skin and by extension stimulating the marking gland, blood immediately welling up around his teeth as he grabs at him harshly with his hands, fingers curved against his uniform as he forces him up even harder against the door.

Izuku snarls like a rabid animal, a sound nearly inhuman.]

[Katsuki knew, logically, that it would feel amazing. He knew Omegas were born to be marked, and that to them it's like the ultimate pleasure to have that gland bit. But the thing is, he always thought he'd be the one delivering said pleasure-- he'd be the one biting down hard onto an Omega's neck, causing them to howl and cry with the sensation.

He never knew, really, just how it would feel to be on the receiving end. He never knew it'd be so.. overwhelming. And try as he may to keep his pride and not utter a single noise as the teeth sink into his skin, instincts take over pretty quickly. He winces as the pain strikes his neck, blood gushing out of his new wound causing his neck to feel extremely hot where it runs down. But the moment those teeth reach the gland, a feeling washes over him that actually gets him to let out a loud moan.

Something that Katsuki vowed to never do at the beginning of this.

It's high pitched and accompanied with tears that he can barely keep back, and at the same time, he feels his cock suddenly seize up... and twitch as he comes in thick strands over Deku's abdomen.]

[A lot happens all at once, just then. It seems that the moment Izuku bites down on Katsuki's neck, maybe even a little before, he ends up cumming from it. Not only that, he tightens down on Izuku so much that he fears for a wild second that he won't be able to move anymore. Fortunately this ends up not being the case as Izuku moves on automatic, all other thought erased other than one: to mate. Breed. Make Katsuki his.

With one punishing thrust of his hips forward, the base of his cock makes it past that ring of muscle and into Katsuki's body as Izuku knots him, firmly locking himself in place as he cums shortly thereafter with a thick sound through his teeth still latched onto Katsuki's neck. He cums, and he doesn't really seem to stop right away either, shivering from the shoulders down.]

Fuck--!

[A loud gasp forces itself through Katsuki's throat, when he feels Deku's knot push it's way in, stretching the opening with such force and speed that it'd be a miracle if it didn't tear. It goes in so deep, that he can feel it press against his cervix (its abo mpreg the only kind allowed). Even going as far as to start stretching that open too.

And as soon as that swollen muscle is all the way inside of him, something burning hot and thick shoots in through the small opening his cock made and it feels.. so overwhelming that Katsuki forgets how to breathe for a couple of seconds.

He gasps, which turns into heavy, frantic panting as Deku's semen not only fills him up, but starts to spill out of him as well just from how it's not stopping.]

D-De..kuh-k-kuuuuu...u......

[He croaks out Deku's name in a growl so low and hoarse that it's almost too hard to hear.]

[Izuku maybe tries to say Katsuki's name, but instead it just comes out as yet another deep, drawn out growl. Posessive and downright scary in its intensity as his teeth sink even deeper into Katsuki's neck, though not deep enough to cause him to bleed out. Probably, as long as Izuku eventually lets go.

Right now, though, he doesn't want to let go. He wants to keep hold of his mate, staying linked with him for as long as he possibly can. Still cumming, so overwhelmed by him that the pleasure he feels is a completely different entity.

It's a miracle they haven't been caught yet, with Izuku holding Katsuki flush to the door to the bathroom as opposed to one of the stalls.]

[Katsuki sighs between gritted teeth, an attempt to keep himself quiet when he feels Izuku's teeth pierce his neck even more. At this point, his dick is as flaccid as can be and he's more or less just taking what Izuku has to give him. And it's.. too much, even for him.

He feels his consciousness starting to slip away as that cum keeps filling his insides, and blood continues to drip down his neck. It's such an intense experience that he never, ever expected especially not for the Omega on the receiving end. And honestly it embarrasses him that he can't just take it and own it like everything else. His stupid body has a mind of it's own and as it quivers and shakes against the door, he closes his eyes tight and pretty soon.. his body relaxes and he becomes a lot heavier.

He's... passed the fuck out.]

[UHH OKAY THAT'S MAYBE GOING TO BE A HUGE PROBLEM because Izuku is

Stuck. He's knotted Katsuki so like...he won't actually be able to pull out for five minutes and that's being extremely generous, it's usually more like ten...

How long is Katsuki going to remain unconscious? Izuku can hold him up against the door for some time, but eventually they're going to sink to the floor as he fails to keep them upright...and if even longer passes he'll have to figure out what to do from there.

[and then bakugo stayed unconscious for the rest of the day

No, luckily for Deku he's not out for too long. About two minutes before he starts to come to again, sweating and panting like he just ran a marathon.]

..n..nnnngh...

[He opens his eyes again, and almost immediately he becomes... very aware of the swollen muscle still. Stuck inside of him. Everything down there is sore as hell and admittedly all of the pleasure was pretty much gone, now. So it's extremely uncomfortable and he starts to growl in the back of his throat.]

Get the fuck off me, shitty nerd! We're finished, alright?!

[He pushes at him with his arms, still trembling and really lacking any strength.]

[Yeah thanks for finally deciding to rejoin the land of the living, Kacchan-]

I c-can't! I'm stuck!

[Izuku hisses, the acrid taste of Katsuki's blood still in his mouth. Now that he's had some time to sit there and come down from everything, gently licking Katsuki's neck while he was blacked out, he's definitely sounding more like...Deku again as opposed to the Alpha he's presenting as.]

Stuck?! You're fucking with me!

[Yeah, this is about what's expected of these two.

Katsuki tries pushing even harder, putting more force into it but it tugs Deku down below, which.. hurts???? Fuck. Fuck.]

J-Just-- just stop being horny for a fucking second and get your tiny chode outta my ass!!

[god this is embarrassing]

[Okay, that causes Izuku to growl with pain, reaching out to grab onto Katsuki's shoulders to try and make him STOP THAT]

I'm not! W...were you not paying attention in class when they taught us this? I...I c-can't pull out for a bit...

[It's soley an Alpha thing, the knot remaining inside and keeping the two linked until some time has passed, mainly to keep the seed inside to ensure potential ensemination.]

[Of course he was paying attention he just... can't believe they're going to be stuck like this. Aizawa was definitely going to be suspicious from how long they've both been gone but there's no way he can let them be caught like this...

He only has one idea and he hates it? He hates everything about this now, actually, but they're the ones who decided to fuck..]

...get us into a stall. Pretend you're taking a shit or something if someone comes in.

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