#alpha hawks

He heads off first, not even bothering with the door and going right off the balcony which he opens as soon as he wakes to let the nice morning breeze in, but when he leaves he always makes sure to shut and lock it, not wanting you to get too cold as you doze in bed until it’s time for you to get up.

But this morning you had something to do at work even earlier than him. Of course you give him a kiss goodbye as he does for you, laughing when he groans but still accepting the code you make him this time.

You’re out the door and an hour later he’s getting ready to leave as well, but this time he doesn’t bother shutting the balcony. You’re not there to be disturbed so he doesn’t see much point in his still drowsy mind. And so he kicks off with the same speed he normally does.

When he comes home he’s instantly hit with the scent of your distress, panicked thinking he should have closed the doors and someone got in. But as he ventures deeper into the room he finds you kneeling on the bed, not crying but the occasional chirp escaping as you reorganize the blankets and pillows-all ones he’s loving bought with you in mind- only to become even more frustrated since it’s not the same as it was.

“Hey it’s alright I-“

He stops short as you fix him with a glare, pinning him in place as a low growl escapes. Not the playful one you’d give when he would hold things above your head as you jumped to get them. No, this one was pure anger. That if an Omega who promised to pounce and it sounded foreign coming from you.

“You could have just told me you didn’t like it.” You snap, leaving Keigo more confused than before. He tries to question you but you’re on a roll, abandoning your attempt to recreate your nest and turning on him, walking him back until he’s against the wall.

Even with all the situations he faces on the daily as a hero he can’t help but be more scared now than he is in any of those.

“Not only do I have to go to work early, but also have to deal with a bunch of clients who have contradicting demands and refuse to be on an email chain or discussion board together as well as a boss who thinks I can snap my fingers and have things done! Then I come home looking forward to nothing more than sinking into my perfectly constructed nest and reading, and you know what I find?”

Keigo swallows, biting his tongue, already realizing his mistake but far too late.

“Blankets everywhere! Not a single pillow left on the bed! Bare except for the sheets!”

You turn back around, still silently fuming as you go back to trying to get everything back in order.

Keigo can’t help but feel guilty, knowing you’d been under more pressure than normal at work and the last thing he wanted was to add to that. And so it’s with all the disposition of a locked puppy that he goes out to the kitchen, ordering your favorite takeout.

The smell when it arrives is enough to lure you from the bedroom, your frown easing just a fraction when you see the table set and Keigo standing awkwardly. He was a good mate. Amazing even. So the times that you were upset, truly upset, with him were far and few between and each time it happened left you both feeling awkward.

What finally broke you was when he offered up his jacket, freshly scented and an item you often covered and stole from him during your heats. It wasn’t something he often let you have apart from those times, distracted by your scent all day when he got it back, so for him to do so now was more of an apology than words.

Hesitantly you accept the olive branch, trying to be subtle as you sniff the fabric before slipping it on, practically purring at the fit.

“I really like your nest.” He says, slowly wrapping his arms around you, pleased when you don’t pull away as he rests his chin on your head. “Promise I’ll be more careful.”

You sigh, still mad but also recognizing his attempt to make you feel better. It might not have been as bad if today at work had gone better, but all of it adding up was just too much to handle. He was reckless, but not malicious.

“You better, or else I’m moving my nest to the storage closet.”

“I’d be too small for us both in there.” Keigo complains, pulling you closer as his wings fold around you. When it came to it he sure knew how to lay it on thick, but even so you couldn’t help but feel a bit better as his hands rubbed the tension from your shoulders, already eyeing the takeout containers.

Shinso

He loves nest. This man is bone tired ever day and there’s nothing he loves more than collapsing into your nest at the end and curling up with you. Whenever you’re feeling skittish or upset and just want to be alone in it he understands and sleeps in your shared room alone while you stay in the guest room that had been converted into your personal nesting area.

You both don’t normally sleep there but it’s cozy and a nice way to end the day after coming back from work. It was all the more lonely when you weren’t there but he managed. Just as he did before he met you.

He’s well informed on the topic, much more than anyone would expect for a Beta, often giving advice to others when they’re in trouble. It’s not so much about knowing the technical aspects but being able to read the individual Omega and what they would want or need for their nest and Shinso is particularly good at it.

His nesting skills aren’t that bad actually. He liked to make them for himself in his younger years even if some of the others liked to tease him for it. Jokes on them because you certainly didn’t seem to mind, impressed with his knowledge on both construction and etiquette surrounding them. Especially because you were particular about your nest even for an Omega.

You could notice the slightest change in anything and he was honestly impressed with your observation skills. Sometimes it came back to bite him though.

Shinso stumbled through the dark apartment, trying not to trip as he continued his frantic search. He was already late waking up, the power going out in the middle of the night and knocking his clock out, and it didn’t help that he had stayed awake late last night so you could watch the latest episode of the series you were both watching.

Now he couldn’t find his bag, frantically searching his mind for where he could have left it and kicking himself for not using the hanger you had installed for him by the door to avoid this exact situation. He was doing his best not to let you in on the situation, knowing you would tease him about it, even as you got ready in the bathroom by the light of a candle. Your own time to head into work was a bit later and it had been you that had woken him up, surprised he was still there.

The faintest memory flashed through his mind. Coming home yesterday and immediately collapsing onto the couch with you, laughing as he chucked his shoes back down the hallway with impressive aim. He’d also slung his bag down in favor of burying himself under the blankets and on top of you.

Wheeling back to the living room he found the couches just as it had been when you went to bed, piled with blankets and pillows. After a bit of searching he emerged triumphant, tossing it over his shoulder and calling a goodbye over his shoulder as he bolted out the door to make it on time for his train.

He made it with time to spare, panting as he pulled out his phone to check the time. Along with a few other notification he saw that there was a notification from the building manager that the power would be restored by that afternoon. You’d floated the idea of getting takeout for dinner if you couldn’t use the stove to cook, but it seemed those plans were out the window.

Shinso got to work on time after all, putting his things away in his locker and slipping into his costume. He had the early patrol route with Uzui, one of the newer inters he was supposed to be showing the ropes. Though Shinso had his own suspicions it was simply to torture him. Despite her quirk that allowed her to slow time within a specific radius, the young woman never seemed to stop moving. It was like she drank coffee and energy drinks all day and he’d never seen her look even remotely tired.

Today was no different, meeting her just outside the changing rooms where she was already bouncing on her heels and talking with a group of office workers who were still bleary eyed and chugging coffee. They seemed grateful for the rescue, not guilty in the slightest as Uzui turned her attention to him.

“Good morning!” False. It had been an awe full morning. Shinso just hoped that nothing happened to make it worse.

“I saw that there was a power outage in your area! Have you gotten it back yet? Is it going to affect the train schedule? Did you sleep late? Is that why you look so tired?” She paused, eyes narrowing. “Well, more tired than normal.”

Shinso sighed, not bothering to answer her questions as he made his way for the door. He might have felt a bit worse if he also didn’t know there would be a hundred more.

It was going to be a long day.

—————————————————

Shinso’s locker slammed shut, resting his head against the cool metal while trying to ignore the ache in his leg where he’d been struck earlier while restraining someone, distracted by another one of Uzui’s questions and allowing them to get a lucky strike.

The hours felt all too long and he was just thankful the report was simple enough that he didn’t need to stay late. You’d be home already and maybe finally let him into your nesting room after being shut out the past week.

When he exited he found Uzui already there and just barely stopped himself from turning right back around.

“Can you sign for my hours today? And put the report number down to count towards my practical experience?”

He sighed, grabbing the offered paper and pen to scribble the information, ra king his brain trying to remember the number for the report. As he did so Uzui leaned in closer, her nose twitching.

“I’m glad I was able to catch you since you’ll be off work next week.”

Shinso paused, his signature trailing off as he looked at the young hero.

“You know, because of your mate? They’re going into heat, right?”

Some may consider it rude, but while Uzui could be annoying she also had a nose like no other and seemed to use it to further terrorize others. She could know everyone you’d hung out with in the past 48 hours even if you scrubbed your skin raw.

There was no reason for him not to believe her and he was more so surprised. Your heat wasn’t supposed to be for another two weeks and you were rarely off schedule. Shinso took it with a smidge of pride as it was a silent proclamation that he was giving his mate a safe, stable environment.

He wracked his brain, trying to think of any of the signs to show it was coming but he’d been so busy it was hard to recall. Sure you were a bit more protective of your nest than normal but as it approached you normally were more open with it, wanting him to put his scent over everything. What-

He paused, noting the way Uzui’s attention seemed to be over his shoulder. On his backpack. The same one he’s dug from the pile of blankets and pillows that had been living on the couch for the past week. What he assumed had been there due to you both being too busy to move them.

There was only one other time when you had made a nest outside its designated area, spurred on by the stress at work and Shinso’s increasing absence earlier on in his career. You’d been so worried about missing him when he was home that you’d set up camp in the living room to catching him as he was coming in going. He hadn’t even thought about it happening again but now a sinking feeling settled in his stomach. As if he’d eaten a bowl of rocks. Something he would have done over what he did, remembering the way he’d carelessly tossed everything off the couch that morning.

He practically threw the papers back at Uzui, leaving her puzzled as he dashed out the door.

Shortly after he found himself standing in front of the apartment door, your favorite takeout in hand as well as a puzzle to add to your collection, of which you liked to do at night while you lounged together.

The lights were on when he entered, allowing him to see the mess he’d left earlier in his haste. They lay in the same crumpled heat, the living room devoid of your presence that had been a constant the past few days. What really hit him was the bitter tinge to your scent, a mix of distress and anger that always made his nerves burn with distaste.

Shinso crept through the hall, cautiously making his way closer to your nesting room where he could hear you moving about. The scent only grew stronger and he felt all the worse. He couldn’t even remember the last time it was this bad, feeling as if it were clinging to his throat like a thick glue.

The door was cracked, allowing him to see the way you stood in front of the bed, arms clutching tightly to hold yourself together. His own anxiety must have peaked enough to draw attention, your head whipping over to where he stood. But instead of chastising or slamming the door in his face he was surprised when you flung yourself at him, chirping your distress as you latched on. He nearly dropped his bags, barely managing to set them down in time.

He tried to soothe you- crooning as load as he can, though it’s nowhere near as loud as the rumble that alphas can produce- but the tears wouldn’t stop, feeling like a slap in the face as you wimpered.

“Shinso, my nest-“

“I’m sorry. I understand if you want me to leave for the night.” He said, trying to keep his anger in check. His instincts screamed to take care of whatever had caused this but he knew he only had himself to blame. The words wavered even more than your own, making you draw back in surprise. Enough so that your tears had stopped for the moment.

“What?”

“I’m a shitty mate. I don’t don’t deserve you, I-“

He’s cut off as your hands grab his face, confusion coloring your own.

“What are you talking about?”

“Your nest? The one on the couch?” He’s confused by your reaction but don’t fight against your touch, in fact leaving further into it as it calms him in turn.

“I don’t have be one on the couch.”

Your admission only makes him more confused. Why had you been so upset?

“But then why did you say-“

“The maitanence workers.” You turn back to the bed, looking over the carefully constructed mess that sits there. “They had to get to the fuse box to test that it was working after resetting the power. They moved all my stuff and put their scent in the room.”

Your nose wrinkles in disgust. Shinso realizes you’re right as he takes a deep breath, the muted smell of others lingering. It’s obvious that you’d tried to get as much of it out as possible but it still lingered in a way that was distasteful to you both.

“Oh, you brought dinner?”

The intrusion of your nest is momentarily forgotten, excited to see the familiar takeout box sitting next to him.

“Would you mind scenting the room to get their smell out while I plate these up?”

Shinso could only nod as you placed a kiss on his cheek before retreating to the kitchen, hardley able to believe his luck as he layered his scent thickly over everything. By the time you came back the place reeked of him and you wouldn’t have it any other way.

Much to his delight he was allowed to stay, his offerings even to gain him entry.

“Why did you think my nest was in the living room?” You ask as you fit another puzzle piece into place, brows furrowed as you try to assemble a large area that all looked the same.

“Ah, Uzui mentioned you were near your heat, and with everything else going on I thought you might have decided to put it somewhere else again.” His face reddens as you laugh.

You knew about the intern, finding her positively endearing after catching them out and about together.

“That was one time! Besides, my heat is still a few weeks away. Tell her to get her nose checked.”

“Yeah yeah.” Shinso halfheartededly agreed, pulling you back into his chest as he felt his eyes grow heavier, your scent mingling with his and only growing stronger as you scented him, purring all the while.

He often considered himself a lucky Beta but now more so than ever.

Unfortunately he wouldn’t get to talk to Uzui until the following week, your heat in fact coming early, much to Shinso’s amusement and your annoyance.

Bakugo

Despite what people think he doesn’t have a secret gentle side no matter who you are. He’s straight forward with everything in his life and that includes his mate. Straightforward, but not rude. He just prefers honesty and doesn’t have the patience to be tiptoeing around things, especially when it comes to you.

Honestly it’s a bit refreshing from the normal treatment that Omegas get. He’s not a brute but won’t let you push him around, while still indulging in your desires. He’s not the type to get you new nesting material just because he saw it, but if he knows you’re needing something new or you’ve had a rough time lately and need a pick me up he’ll get it. It saves you the headache that some other Omegas have of having to go through your collection every few months and weed things out.

You knew how he was when he first asked to court you and were under no impression that he would change. And while he is softer towards you than anyone else, it’s still not the mushy, head over heels way that others can be. He looks out for you and cares for you in his own way. That might not be the usual PDA that mates display-even if he’s insistent on you scenting each other whenever you’re leaving the house, he would only ball at the idea of doing so in public- but he still does his own things.

Making sure you make it to the bed when you fall asleep on the couch, knowing you’ll be hurting in the morning if you don’t. Ensuring you get the proper nutrients during your heat when all you want to eat is instant ramen and juice, even if that means pulling himself away long enough to go make a proper meal at least twice a day. He won’t let you cling to him like a swims skin in public, but best believe that his hand is holding yours in an iron-tight grip.

Still, you never thought he would do this.

You stand in the doorway, hardley able to believe your eyes. Surely you must still be asleep on the plane, still coming back from the conference you were at for two weeks. That you hadn’t come back to find your nest completely gone.

No blankets or pillows. No plushies or carefully selected garments.

All gone.

You’re still there when Bakugo comes home, finding you in the living room, curled up on the couch with a blanket wrapped around you. Your travel bag was still on the floor, unpacked, as if the silent tears rolling down your face wasn’t enough.

His eyes lock with yours, widening as he realizes something is truly wrong, long legs eating the distance as he crouches in front of you.

It’s not how he expected to see you after two weeks of being away from each other, normally more eager to greet him. Or, when you got home late, he’s there by the door to greet you and take your bags.

“What’s wrong?” His voice could have been a bit more gentle, more soothing, but he’s too put on edge by your distress to care.

Find the problem and fix it. Simple.

“It’s gone.”

Bakugo didn’t have to ask what it was. He already knew as well as you did that he was the one who had gotten rid of it.

For months he’s been grumbling about the mess in the corner of the living room that made up your nest but there was nowhere else to put it. You didn’t like the height of beds or other furniture and felt too claustrophobic and cramped to put it in the tub. The bedroom was too small to even have it in the corner of without being in the way and so the living room had been the only option. You didn’t have guest over that often, and when you did you would clean all the items up and put them away even if it was a pain to do every time.

And now he’s went and gotten rid of it while you were gone, part of you angry but a larger part of you hurt that he’d done so. Moving, or even touching an Omega’s nest was a big no. Not if you valued your relationship with them.

Bakugo paused, taking a deep breath before picking you up much to your displeasure. You weren’t too happy with him at the moment and in the time he was gone had seriously begun thinking about your relationship.

But before you could fight too much he sets you back down on your feet, now in front of the half-bath just down the hall from your room.

Except when he opened the door it wasn’t a bathroom, shocked to see it resembled the reference photos you had saved for a nesting room. But these weren’t photos, complete with everything including a small fridge tucked away in the corner.

You recognized the familiar items that normally made up your nest tuck at the far end of the wall. They sat atop a heating pad that separated it from the newly laid flooring.

“Now you don’t have to get all antsy when other people are coming and get too close to your nest.” Mumbling, he crosses his arms. “Don’t even use this one anyways so I figured why not make it something actually useful.”

You turn to Bakugo, wide eyed and lip still trembling as a wave of tears rolled down your face. Not from devastation but joy, wrapping your arms around him in a tight hug, not caring for the dirt that still clung to him for work as you purred.

“Eh?! Stop acting like it’s some big deal! Now I don’t have to trip over it in the mornings.” Despite his words you could feel the deep rumbles as he preened at your reaction, clearly pleased.

You let go, slipping inside to explore more and excited to see a new blanket made entirely of the same material as your favorite shirt of his. It’s perfect, from the color of the walls to the shelves that had replaced the sink and toilet. Where the shower once was sat a pile of materials both old and new, much to your delight.

When Bakugo tried to follow he was quickly pushed back out, the door shut in his face.

“What the hell?!”

“You still moved my stuff!” You shouted from behind the door, not bothering to lock it as you began sorting through all the items. “No nest for you for a week.”

He grumbled, annoyed but knowing there would be no changing your mind. Instead he got up, grabbing your travel bag and already starting to sort through the items of what he could toss in with his clothes.

Shoto

This man has both little time and a decent amount of money from his hero work, so I imagine that for a good chunk of his professional life he’s hired someone to come and clean his place. Plus, he’s contributing to the economy.

Even before you’re officially mates and are just courting he likes to ensure that you have everything you need, even if he’s not entirely sure what that is.

He often goes to his siblings for advice, a bit more socially adept than him, but still manages to make a mistakes on occasion. He’s grateful that you’re understanding of his upbringing, not taught to care too much for the comfort of Omegas until his later teen years.

It wasn’t helped by the fact that a lot of Omegas found him to be intimidating even when he developed a bit more social tact, his scent rather striking and overpowering. But somehow he had managed to find you, and despite all his (many) blunders when courting you, you agreed to be his.

Still, old habits are hard to break. With how his job is he’s grown used to giving orders and expecting them to be followed, confident in his decisions. Just as always people listen to what he says. A natural born leader.

He just sometimes wishes they wouldn’t.

Shoto steps inside the house, finding it the same as he would any other Thursday. Even if he had graduated and launched to quick success in his career you still had some college classes to finish, and he was more than happy to support you in any way he could.

Despite your busy schedule you still tried to do everything by yourself as much as you could, and he could already smell dinner coming from the kitchen. It was something you insisted you enjoyed doing along with packing his lunches and he found food always tasted better when coming from you.

A soft melody came from the kitchen, playing music off your phone as you worked. He called a greeting as he passed by, catching sight of you in front of the stone as he passed by towards the bedroom.

But as soon as he stepped inside an odd feeling overtook him. Normally the moment he stepped through the door he felt a bit more at ease just knowing he could relax without worry. But now he felt on edge. As if something were wrong but he didn't know what.

Moving to change, he stripped his shirt and tossed it into the hamper which had been overflowing that morning. It now sat empty thanks to the housekeepers who had been by earlier in the day, and whom he had made sure to give instructions that everything in the house was to be washed. With your heat and exams coming up he knew you wouldn't want anyone in the house, and he wanted to make sure you wouldn't have to worry about any sort of laundry for a good while. Even the bed was freshly washed and crisply made.

As he walked back to the kitchen, he passed the nook that served as your day-to-day nesting corner. Normally it was packed full of books and any puzzles you were working on, lost amidst the sea of blankets pillows, and his clothes. But instead of a chaotic mess he was greeted with a neatly organized corner. The blankets and other fabrics were there, but neatly folded on top of one another.

You didn’t fold your nesting material. When it got too old it was washed and put right back in place. A comforting constant you could return to and ever since he’d known you Shoto had rarely seen you change what was in it apart from a few things of his, which he also noted were missing.

The chances of you leaving them in such a way? None.

Shoto’s body tensed, looking towards the kitchen where you remained. He crept closer with caution, a new caution to his steps as he approached. You remained with your back to him. Knife in hand and vegetables untouched in front of you.

It had been easy to miss with the sound of the music you were listening to but the light tremble of your shoulders told him all he needed to know.

Without a word he wrapped his arms around you, unsurprised when you turned and immediately hurried your face in his chest. Tears quickly soaked through his shirt and the smell of your distress finally peaked through the aroma of spices coming from the stove. You must have done so on purpose, just like the music.

Once, you admitted feeling bad about putting your worries on him after he had picked you up from Uraraka's place after a girl's night, drinking just enough to let your tongue loose. With everything he did as a hero you knew he had a lot to deal with and didn't want to add anything to it.

Very few times in his life compared to how crappy he felt in that moment, and it was a big push for him to try and be more open with others to try and encourage you to do the same even after he assured you it wasn't a bother.

Your problems were his and vice versa. That's what being mates meant. You cared for each other. Something he felt like he failed to do as he gathered you into his arms.

"I'm sorry. I forgot to tell them not to touch your nest."

"It's fine." You hiccup, aggressively trying to wipe away the tears only for more to take their place. "They were only doing their jobs."

Shoto didn't try to stop your crying, letting you get all of it out as he held you. He rubbed his hands along your back, lightly scenting you as his chest vibrated with deep rumbling purrs. A rare treat from him, still a bit uncomfortable with the practice even after all your time together. He was always worried he sounded too intimidating. Kaminari had once told him instead of comforting it sounded a predator about to pounce.

"You can remake it. I'll scent everything you need. You can even have my winter uniform to put in there." That had you perking up a bit, the breathable fabric one of your favorites yet still rejecting the blankets he had made of same material stating it wasn't the same. Finally, you pull back far enough back for him to see your face. Your tears have stopped even if your eye remain red and puffy, but your scent has gone back more towards what it normally is.

“Sorry. I know it’s dumb.” You mumble.

“No. I was dumb for not thinking about it.”

“You’ve been busy. We both have. I know you were just trying to help.” You smile and Shoto feels his own lift in response. “You can help me remake it after dinner, then quiz me for my exam Monday.”

“Sounds perfect to me.” Shoto pressed a kiss to your forehead, drawing a small laugh from you, turning back to continue with dinner as he remained close by, a rare display of clinginess.

Kirishima:

Kirishima knows all about nesting, and has been preparing for years as he looked for the right omega for him.

You were quite surprised when he showed you the spare closet full of blankets.

He told you that if you needed anything else for nesting to let him know.

It didn’t take long at all for you to feel comfortable enough to start nesting.

Kirishima had his suspicions when you started moving some things into an extra room in the apartment.

He waited patiently for days, hoping that you would invite him into it once your masterpiece was finished.

As soon as you added the last item, you called out to kirishima.

He respectfully knocked on the door and waited for permission to enter.

You made more than enough room for the two of you, and made it as sturdy as possible so that it would last for a while.

The two of you spend most of your free time cuddled together in the nests you make.

Hawks:

Hawks knew about nesting, but still did research when it came to buying things for you.

He wanted to make sure that he had everything you needed when the time came.

You let yourself slowly get comfortable in the new environment, before nesting.

Hawks came home one day to find the lights all off, and it looked like you hadn’t eaten.

Upon calling out your name, he got a response from your shared room.

There you were curled up on the bed where you had made a nest.

You didn’t even realize what time it was since you had been so focused on making it.

Hawks was pleasantly surprised to see that you had made it in the room, but worried that it meant he’d have to sleep elsewhere.

You assured that he could come into the nest, but only after the two of you had something to eat.

The bed was the only place you ever made your nest, since it was where keigo’s scent was the strongest.

Aizawa:

Aizawa knew what nesting was, and gave you free-range to get whatever you needed for it.

He didn’t expect the amount of blankets you would get though.

He woke up one day to not find his sleeping bag, or you, anywhere.

It was a bad day for Aizawa, and he couldn’t wait to get home and spend some time with you.

There you were, snuggled in his sleeping bag inside of what he could only assume to be a nest.

You simply greeted him and asked him to join you.

Aizawa made his way into the sleeping bag with you, promptly falling asleep.

You made nests in various areas of the house with Aizawa’s sleeping bag being a major part of them.

His after school naps were spent with you inside of your nests

Dabi:

Dabi had no idea of what nesting was.

When he saw that you had gotten quite a few blankets and kept going in out of a spare closet, he became quite curious.

You explained to him that you were preparing to nest.

Dabi still didn’t understand, so he just watched as you did your thing to see how a nest was made.

The amount of time you spent on making the nest surprised him.

After you were finished, you gladly let him inside of it.

Dabi felt some comfort being inside of the nest, and enjoyed how it smelt so much like you.

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.