Kinktober Day 6 A/B/O aka Omegaverse
18+ Minors DNI
Here we are at day 6, my chickadees! I'm taking some requests from one of my servers today. So for the wonderful, amazing, and talented @rouge-heichou , @writings-of-a-shattered-mind , and @krystalwithakay We have Dabi, Chisaki, Shindou, Hawks, and Shiggy. And Dabi/Shiggy/Hawks together as well, because why not. Fair warning, I play kinda fast and loose with the rules of the omegaverse. Sometimes I treat it as a kind of soulmate au, sometimes I don't. I'm not always consistent with how secondary gender effects physiology. I've tried to make these comprehensive, but if you want clarification on anything, always feel free to ask! This is a few days late now, so I'm only going to write about my headcannons of those boys as Alphas towards an omega reader. If you'd like my headcannons for any other combo of dynamics, just ask! Dabi
As an Alpha-
Dabi as an alpha is a dangerous thing.
Just regularly he's ridiculously sexy.
You add in an alpha growl and pheromones into the mix?
RIP
I think honestly his real true base scent is very neutral. Clean linen, maybe a hint of citrus. But because of his quirk his scent has gotten progressively smokier over time. Those that don't know him well mistake it as him always being pissed. But really it's just how he smells.
He'd never admit it, but he's a little sensitive and defensive about the smokey quality of his scent. He remembers what he used to smell like, and desperately tried to prevent his scent from changing. It gave him some dysphoria for a while. He's mostly accepted it now. But a partner accepting or even enjoying his scent now? That would mean a lot to him.
That being said, Dabi wouldn't be particularly fussy about partners. Alpha, Beta, Omega, he genuinely does not care at all. As long as they're willing and the sex is screamly good he's happy. Obviously he's not a "saving himself for his mate" kind of guy.
That is until he finds his mate.
Holy shit his mate.
He didn't think he had one. Thought the stories about what it was like were all bullshit. His parents allegedly were mates after all, and look how that turned out. But then there was you.
Your scent hit him like a truck, and he almost went feral with the need to bite.
You got one look and whiff of him and took off for the hills.
He was too intense and too much all at once.
He wouldn't give up though. As painful as it might be, he'd let you set the pace, even if that pace was very slow.
And you won't be able to deny the instinctive pull to him.
He'd be incredibly jealous of anybody else even remotely flirting with you.
When you'd hit a point to allow it, he'd absolutely drench you in his scent and cover you with hickeys.
When he finally gives you a mating bite if will be, large, messy, prominent, and renewed often.
With sex with you the first few times he tries hard to be gentle. He's gruff and mean in daily life, but he doesn't ever want to genuinely upset you in your shared nest.
(And believe me that boy wants to be in that nest all the time. Comfy and soaked in his mates scent is heaven to him. Best sleep he's had in many years.) But if you give him the okay to be rough? RIP. He will destroy you in the best ways.
Boy has a big dick and a big knot. Both are a little warmer than average, but not uncomfortably so. His cum is also on the hot side. He doesn't cum an exceptional amount, but he has an incredibly shot recovery period paired with a buttload of stamina. It ends up equalling out. He's a Todoroki. He has a breeding kink. But very hesitant about actually having children because trauma.
Would be fine topping or bottoming.
Would actually enjoy acting subby during his rut, I think.
If his partner was an omega, could and would be more dominate.
He enjoys indulging in the primal side of secondary gender.
Would beg to chase his partner through the woods and to be allowed to literally rip their clothes off that knot them right there on the forrest floor.
Chisaki
As an Alpha-
This fucker could and would be mean a lot of the time.
Conservative and traditional about secondary genders.
He'd only want an omega to be his partner.
Would refer to others, (especially omegas) by their secondary gender instead of their names.
Finds heat and rut cycles to be disgusting and a chore.
But I could see him as either being allergic to or unable to use rut suppressants. (Possibly overused them when he was young and developed a resistance to them?)
As a result it isn't unusual for him to hire on omega for his ruts and give them a list of requirements, such as bathing with specialty soaps, being screened for diseases, specialty clothing to wear. Birth control and several backups for that birth control. For random omegas, I think he'd want them to wear scent blockers as well.
His own scent he never blocks because he knows how to use it to intimidate others. I could see it being a mix of wood and leather. He's on the more cognizant side for a rutting alpha. It takes pretty special circumstances for him to loose control even with his partner/mate.
He wouldn't be particularly thrilled or upset about discovering his mate. He'd be very businesslike. Try a pull a "Clearly we're mates, which means you're now my property and you're going to come with me now because that's what omegas do."
Chances are his mate isn't going to like that and tell him to shove it right up his alpha ass.
Chisaki isn't bothered by this.
He isn't.
He didn't really care if he ever found his mate anyway.
...
He is extremely bothered by this. It's like his alpha nature has fully awoken for the first time.
Why had you rejected him?
How dare his mate be such a rebellious little shit?
He'd have his men watch you. Stalk you personally. Threaten and chase off any other suitors you may have. Learn your habits and schedule and insert himself into you life. Absolutely make a nuisance of himself. And if you get angry and fought back? Went out of your way to flirt with others where he could see? Continue to call him a jerky knot headed alpha? Well he'd make your life even harder.
Your first time together is going to be rage fueled hate sex in a filthy alleyway. Quite probably triggering your heat, his rut, or both. There will be lots of biting, both sides. Very rough. He'll knot you there, growling all the while while you snarl back.
Chisaki has a very pretty cock and knot. Good color, right amount of veins. Thick but not too thick. They could model dildos off his cock and they'd sell a million.
After you have sex, you'd have an uneasy truce. He'd stay more out of your business, you'd agree to just be his omega. The idea is that you'd only see each other for heats and ruts. That idea only lasts about two weeks.
You two begrudgingly acknowledge you're very sexually comparable. And it's difficult to keep your hands off of each other. The more the two try to fight your desires, the more your secondary instincts seem to come out when you see each other.
He finds himself craving your presence.
You find yourself doing things like scenting him to sooth him when you can tell he's agitated.
The more comfortable you get with each other, the more submissive you'd allow yourself to be.
The day you fully accept him, you'd make a nest on his bed and wait for him in the traditional presentation position. And when he'd find you like that? You'd be mated that night for sure.
Shindou
As an Alpha-
At first Shindou comes off as a very easygoing alpha.
He doesn't dispute territory, and doesn't fight too hard to compete for omega's attention when other alphas are around.
His scent I'd see being crisp and upbeat. Some sort of citrus apple mix, maybe.
And a lot of the time he just doesn't see a point in "acting like a knot head" to peacock for omegas.
It just isn't a priority for him, usually.
He's had plenty of casual relationships and friends with benefits, and that's fine for him. It's all he really needs at this stage of his life. He has it all planned out and it would be best for his popularity if he remained single for at least another ten years.
And that's what he thought even after he met you.
Could have happened a few different ways. Friend of a friend, met at a club, introduced at a party, a hookup app. How the first time happens doesn't particularly matter. It happens and you both have a good time.
You're compatible. Like really compatible. You both smell insanely good to each other. And Shindou isn't about to admit it's the best sex he's ever had, but he can't think of a time when that particular itch has been scratched quite that well.
So, he would as you do be a part of his pack. Hang out with his friend and become a friend with benefits. Nothing too formal or exclusive. He'd probably explain to some extent that he's planning to stay free for a while.
And it's okay at first. It works for both of you.
But you're drawn to each other.
If you voice that maybe you'd like something more, he'd pull away for a while. He likes you, but he's thought about this plan for years. He hates seeing you unhappy, but he remains firm.
Until he overhears that you're asking someone else to spend your heat with you. And he can't get the image out of his head. It makes him queasy. It makes him furious. How dare someone else touch his omega when they're vulnerable.
He'll stew for a couple days before it clicks. He realizes that you're absolutely it for him. And he's been a fucking idiot and he needs to fix this fast.
And he will, bless him. He's good at planning, isn't afraid to apologize, and is painfully loyal.
Sex with him would always be good.
His dick is solidly average for an alpha both in size and knot. But he has his quirk and sure as fuck knows how to use it to his advantage.
Isn't controlling or possessive unless he views someone as a legitimate threat to his relationship. (He never fully relaxes around the alpha you were almost going to start courting, often growling under his breath.)
Hawks
As an Alpha-
Hawks likes to give the illusion that he's a big macho cocky Alpha. In reality this boy is a softy.
It takes a while for him to be comfortable opening up to anyone.
But once he does? Once he finds his partner?
Oh boy.
Clingy alpha boy.
Scenting all the time. He wants you drenched in his scent and vice versa.
He practically just lets his instincts take over.
Biting all the time.
When you're out in public together he wants to always wants to be touching you. A hand on your lower back, holding hands, an arm or wing wrapped around your shoulders. That touch just makes him feel more secure. And if you reach to take his hand first? He'd absolutely melt.
Hawks would not hesitate to full on snarl at anyone who is harassing you or making you uncomfortable. Although you scolded him and were nervous about how it might effect his image, it ends up being fine. It helps that overprotective is a stupidly good look on him.
He makes all the little alpha noises, without holding back.
If you're an omega, this man wants in your nest so bad he's practically crying about it. He won't even care if you tease him about being a bird in a nest. He's just so calm and happy and warm. He thinks he's being subtle when he tucks several of his feathers into the nest. He's not at all. You absolutely use those hidden feathers to test if they can be as sensitive as the rumors say. They are.
You may have accidentally triggered his rut by teasing him that way at least once.
You make a point of always wearing one of his feathers.
Big pretty cock, average knot. Takes quite a while for his knot to go down, though. Which suits him just fine because that leaves plenty of time for dirty talk with an emphasis on breeding kink.
Shiggy
As an Alpha
First let me say my Shiggy headcannon hill to die on- Despite being "crusty," this man is VERY clean. He's one of the characters that bathes himself the most on average.
His natural scent would be like lilacs with a hint of old books, almost but not quite a typically omegan scent. He'd be very self conscious about it, and most of the time use scent blocking soaps and deodorants.
He doesn't think there's anyone out there for him. With his quirk he long ago resigned himself to being around. When he's been depressed enough he has gone out and had one night stands before, with varying levels of satisfaction.
He's absolutely terrified of being rejected, so he figures if the opportunity never comes up, he won't have anything to worry about.
But then he see you. Smells you. And it hits him hard. You're real. You're real and right there and meant to be with him. But that can't be right.
He tries to ignore you. He really does. You deserve a better life. A better alpha.
But he can't stand to leave you alone completely.
He doesn't stalk you, exactly. But when he figures out when you always go to the same coffee shop. And if he happens to to usually be there when you're there? Well, he can be satisfied with that.
Which if why he was completely shocked when one day you came and sat at his table.
Because while he was watching you, he'd somehow failed to notice you were watching him too.
He wanted to resist. And he tried. For about five minutes. But you're right there and smiling at him and you're actually interested.
He proposes mating within about ten minutes.
You counter with maybe dating first, see where it goes.
When you two are courting, he makes a very big show of trying to be the absolute ultimate alpha. He obsessively researches ways of being the best and how to act like the best of the best. Some methods may or may not be a few decades out of date.
He tries way way too hard to be charming and suave.
You think it's cute, and let it continue on for a while.
But he slips up sometimes, of course. Goes on rambling rants while absentmindedly scratching at his cheek, and finally relaxing and being himself.
If you happen to brush his cheek, smile, and say "There's my alpha."? Well. You're coming home with him that night if he has to throw you over his shoulder and carry you there.
He'll have done something super old fashioned and created a bower for you. (Sort of the alpha equivalent of a nest, but build with more intention to show off to potenial mates.) It's soft and well thought out, and is the first time he allows you to experience his scent. And you realize why you had been so drawn to him. You just about kiss him senseless.
The first time is very awkward. Sweet, but awkward. He's so terrified of hurting you. None of his previous encounters have ever mattered this much. And he's never fully knotted anyone before so when that happens he has no idea what to do, and he's so overwhelmed and sensitive that it doesn't go down for hours.
But you learn with each other, and it gets better every time.
His dick and knot both are on the large side, but he's unaware of that. He thinks he's average if anything. You correct him of that assumption. He's both pleased with the news and a bit growlly for a while at the idea of you having handled other alpha's cocks enough to have a frame of reference.
When he gives you a mating bite it's not going to be somewhere you can easily cover. You're his. But, he wants you to bite him back somewhere just as prominent. Because he's yours too.
Alpha Trio Dabi/Shiggy/Hawks
This is an interesting one.
And some of it really depends on what parts of the dynamic happen when.
Like there will absolutely be growing pains no matter what. All these boys would have some issues with jealousy and possessiveness. But probably the smoothest start of the relationship would be if they were all together before you were added to the mix.
The multiple people would help stablize some things too, because all these boys have fears about being alone. So as long as things get settled, this would eventually be a very rock solid dynamic.
Shiggy would be the moodiest and the clingiest. He'd be insecure about his quirk and his looks compared to the other two. You'd be cuddling him in your nest a lot. Requires many kisses.
Hawks would also be a cuddle bug. He'd love to have everyone in the nest, curled up under his wings. Dabi would complain that it's too damn hot, but he wouldn't try to leave.
Dabi would be the least touchy. He's not always the most direct at expressing his affection. But he'd be the one to do things like gift you a soft blanket for the nest, or find plushies that reminded him of everyone else.
Lord help you during your heat and during their ruts, especially if they coincide. They won't hurt you, but they'd push you to your limits.
They'd absolutely see if you could fit two knots at once.
They'd have a running bet/joke about seeing who would manage to breed you first.
But every single one of these boys would panic if you actually got knocked up. You'd be absolutely smothered in overprotective alpha.