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This was not the sight Katsuki was expecting to see the moment he walked into the Class 2-A dorms. But, to be fair, he really shouldn't expect anything when setting foot in here. Realistically, this is far from the weirdest thing he's walked into. Regardless, his exhausted brain doesn't appreciate it. He's just finished a very intense day of physical training. The morning of it spent with these idiots in front of him, and the afternoon with Deku and All Might, honing their skills and ever preparing for their eventual debut of the New Symbol of Peace and Symbol of Victory. Needless to say, Katsuki is fucking wiped.
Which is why it's so hard for him to rationalise the sight of his closest friends and packmates sitting behind one another like a fucked-up caterpillar, holding each other's shoulders.
"What the fuck am I even witnessing right now?" he says aloud, exhaustion and exasperation filling his tone. "Hold that. Do I even want to know?"
"Bakubro!" Kirishima exclaims. "When we got back from class, Mina mentioned how sore her shoulders and neck were, so we decided to set up a massage train. Wanna join?"
Katsuki is floored. He doesn't even know where to start to respond to that.
"Oh, come on Baku," Mina calls out, sitting in front of Sero, who is working weirdly well at massaging her shoulders. "You definitely need some R'n'R, so why not let us pamper you?"
"Fuck off, just because I'm an omega doesn't mean I want to be showered in physical affection." Despite his words, he really is one of those omegas. The only person who knows is Deku and he wants to keep it that way.
"You've just had a big day of training," Sero points out. Being the most observant of the four idiots in front of him, Katsuki knows he's already clocked his tense shoulders and slight muscle spasms; a sign of future cramps if not properly tended to soon.
"Yeah," Kaminari cheers, "humour us blasty. Come let Kiri give you a quick massage and I can grade your skills at massaging."
Tired of their begging, Katsuki huffs and 'gives in' though he's actually relieved. He was dreading the tenseness and cramps he was going to get the next day. "Fine. But I say when I'm done, got it?"
"Yessir!" Kaminari says and salutes, earning an eyeroll from the grumpy blonde as he sits behind the electric omega and in front of Kirishima.
The second the red-headed alpha's strong hands rest on Katsuki's shoulders, he wants to melt. Thankfully, his stubbornness holds back the response and instead decides to focus his attention on the omega in front of him and his shoulders. Determined to show them all up with his impeccable massage skills.
Thanks for the practice, Deku. But damn you for deciding you wanted meat buns before coming home and leaving me to get massaged by-
BOOM
FUCK.
There's a loud yelp in front of him and Katsuki realises that he uncontrollably let out a few small explosions right onto Kaminari's shoulders. But Katsuki just drops back against Kirishima, body no longer cooperating and mind far away.
"Woah, Bakugou, are you okay?" Kirishima asks. "What happened?"
He jolts upwards the instant he finds he can move and turns away from his friends, knowing his blush has reached his ears and there's no chance for him to hide his reaction now.
"This is why I didn't want to do this shit!" he shouts, standing up. "Fucking stupid. Leave me alone." He stomps off to the omega-side of the dorms, ignoring the calls of his friends. Said calls being ones of concern and curiosity.
He needs to vent and hide out right now. His room is a no-go as he already knows Kirishima will go looking for him there first. So, he goes somewhere no one should be able to guess.
The minute he knocks, the door swings open. "Kacchan? What's wrong?"
"I need to hide," he grumbles, pushing his way inside. "Dunno what I would've done if you weren't here. Though I thought you were still getting meat buns?"
Deku closes the door, shrugging. "I did and I ate them on my way back so I could get home faster. So, don't go looking for any."
Katsuki throws himself onto Deku's soft, plush bed. "You know I'm not interested in that processed garbage. If you really want good meat buns, why not let me make you some?"
He hums. "I don't want you to go out of your way to make me food. And don't think I haven't noticed you avoiding telling me about the reason you're hiding out here. So, c'mon. Spill."
Katsuki rolls his eyes and throws his forearm over the bridge of his nose. "It's so fucking stupid."
He feels the bed dip beside him and purrs at Deku's gentle touch as he rubs Katsuki's chest. "What happened?" he asks softly.
"I hate being an omega," he grumbles.
"I know you don't, but go on."
The two grew up together, resulting in both knowing everything about each other. Not to mention their bond grew deeper when they ended up presenting at the same time and heat-sharing from the get go.
Katsuki trusts Deku with everything he could ever give, including deeply personal secrets. "Kirishima pressed the button."
Deku lets out a chirp of surprise, clearly not expecting that. "How did that happen?"
"I was dragged into a massage train in the common room, and Kirishima was massaging my shoulders and his thumbs pressed against the back of my neck."
Deku knows very well what that means. "Did anyone get caught in the crosshairs?"
"Fuckin' Sparky did, his shoulders copped it. I didn't stick around to check if he was okay. I was too fuckin' embarrassed, Deku. I literally melted against Shitty Hair. I'll never be able to live this down. Stupid fucking sensitive spot, why do they exist? Is it just an omega thing or what?"
Deku shrugs. "That's a question for another time. We at the very least know I have one too."
"Yeah, but yours is easily avoidable. What if one day a villain grabs the back of my neck and I suddenly drop. I'd be so fucking helpless and useless."
"To be fair, I do use my-"
"Yeah, yeah, I know," Katsuki grumbles as he sits up and locks eyes with Deku. "I'm just wallowing right now."
"You do make a good point though, maybe we should go see Hatsume and see if she has any ideas to help strengthen our costumes around those areas. But, that's a tomorrow thing." His hand slides between Katsuki's, giving it a comforting squeeze. "Let's go see Kaminari and make sure he's okay."
Katsuki sneers, hating that Deku knows him so well. "Fine," he grumbles.
"Great! Let's go see him now, he might even get it since he's an omega. Ooh, what if he tells us his own sensitive spot? Maybe I should grab my notebook."
Katsuki rolls his eyes fondly. "You're such a weirdo." He turns and looks at Deku while opening the door, watching him closely as he bends over to pick up his current notebook.
"Maybe so, but you love me anyway."
"Unfortunately," he huffs with a laugh and turns to face the now open door, only to lock eyes with Kirishima, hand suspended in the air about to knock.
"Oh. Uh. Sorry," the alpha says, "you weren't in your room, so I've been checking other places you might've gone to."
"Um. Yeah. Well, you found me." He clears his throat awkwardly. "What's up?"
"Just wanted to see how you are after what happened earlier."
"Yeah, I'm fine. I just had a weird moment, nothing to worry about. Deku and I are going to check on Sparky."
"Oh, yeah, of course. I'll leave you be. Just as long as you're okay."
"Yep. Good. Fine."
"Thank you for checking on him," Deku says, wrapping an arm around his waist. "We'll see you later Kirishima."
"For sure, seeya." The alpha hastily takes his leave and Deku hums as he watches said red-head hurry off.
"He's so handsome, Kacchan," he says wistfully, "when can we start courting him?"
"Soon loser, keep it in your pants for now. Let's go see Sparky."
***
Mr Aizawa decides today is a perfect day for intensive training. The morning consisted of solo quirk training and now in the afternoon he has paired up everyone for one-on-one sparring sessions.
Izuku and Kirishima are paired up. Izuku wants to practice his endurance while Kirishima wants to improve his strength against powerful quirks. It's a great pair up on Aizawa's behalf, but Izuku is greatly regretting this.
His strong thighs are wrapped around Kirishima's head, trying to incapacitate him. It's then that Kirishima wraps his hands around his thighs and pulls at them, attempting to get Izuku to release him.
The tips of his fingers press down on a very specific spot on each of Izuku's inner thighs, rendering him useless. His thighs immediately release the hold on Kirishima and he flops backwards.
He's preparing for a hard ground to hit him at any moment, but Kirishima manages to catch him. His omega momentarily takes over, causing him to whine and bury his head into Kirishima's chest.
"Hey, Midoriya," Kirishima calls softly. "What just happened? Are you okay?"
Izuku huffs and slowly comes out of the haze. "Sorry. I didn't mean to do that. I'm fine."
Kirishima gently places Izuku down, his hands hovering around Izuku in case his omega decides to make an appearance again. Izuku desperately hoping that doesn't happen.
"Are you sure? Why did you just... drop like that?"
"Deku!" Kacchan shouts, hurrying over, concern clear in his red eyes. "What happened?"
"Button." That's all Izuku needs to say for Kacchan to realise what went down.
"Shit. C'mon. You're done for the day," the blond omega says, scooping Izuku up. "Oi, Mr Aizawa, I'm taking Deku to get checked out."
Aizawa sighs. "Fine. Training is over today anyway. All of you go back to the dorms and rest. Normal classes resume tomorrow."
The two omegas take their leave, unaware of Kirishima watching them go, very obviously heading in the opposite direction that the med bay is in.
His curiosity is peaked but he doesn't invade their privacy, knowing that he'll ask the omegas about this later.
***
Eijirou hesitantly enters a room that is banned for anyone else to enter. A room he had, as of noon today, been given special permission to enter as long as his knock is audibly answered.
Bakugou's room.
It's a neat space with a cozy but modern feel to it. Pieces of Bakugou's personality poking out all over the place. There's a limited edition All Might figure sitting on his desk and a bookshelf filled with romance manga. There are also drawings and sticky notes stuck around the place. Notes of reminders or thoughts, and drawings from his childhood.
"Hey Kiri," Midoriya calls from his spot on Bakugou's bed. "Kacchan is on his way. He's grabbing us some bowls of katsudon!" He pats the empty spot beside him, clearly inviting the alpha to come sit with him.
On Bakugou's bed.
"Come get comfy," he urges. "We're going to watch an All Might movie, so come sit."
He hesitates but eventually acquiesces and sits beside Midoriya, heart in his throat at their close proximity so soon after beginning their courtship.
Once Bakugou arrives, they all quickly fall into a comfortable atmosphere, cuddling up to one another naturally. Eijirou notably being sandwiched between the two most beautiful omegas, which has him hyperaware of the position he's in.
It's halfway through the film when he spots a side kick assisting All Might dropping to the ground in a very familiar manner. It sets Eijirou on edge as he desperately holds back the burning question.
As the movie continues, the side kick dropping is discussed through interviews and Eijirou jolts upward at his own realisation.
"The fuck, Kiri," Bakugou grumbles as he and Midoriya are jostled by the alpha's sudden movement.
"That's what happened to you guys!" he exclaims at the now-shocked omegas. "You have soft spots?" He gasps. "You have buttons!"
The two blush beet red at his discovery.
"Maybe?" Midoriya says hesitantly.
He drops his head in his hands, shame and guilt overcoming him. The horrid feeling caused by him accidentally violating them. That the reason they're courting him is actually from coercion. That he forced their omegas to submit and bond to him.
"Eijirou!" Bakugou's voice is firm and calm as he moves closer to the alpha now in a full-blown panic attack. "Follow me." He takes Eijirou's hand and presses it to his chest, his heartbeat firm and consistent. "Feel my heart? Feel how my chest moves when I breathe in and out. Follow me. Calm down and we can talk about all of this."
Eijirou knows Katsuki has done this before, most likely with Izuku, and it really works.
"Okay," Izuku says, laying Eijirou back down on the bed and pulling him close. "Don't worry Eicchan. We aren't mad, or under the influence of your alpha-ness."
Katsuki snorts at the description. "We've had the hots for you far longer than when you accidentally touched our sensitive spots. You're a great alpha, and the way you just responded to this further proves I'm right."
"Besides," Izuku says in a tone that clearly indicates he's ready to deepen the conversation. "We've since discovered that all omegas have these sensitive spots. But, do alphas?"
"You're such a freak," Katsuki says, however, the same curiosity is clear in his eyes.
Eijirou shrugs. "I'm not sure. I haven't had anyone touch me that has caused a reaction like that."
Midoriya hums. "Fair enough. Anyways, you touching our sensitive spots has urged us to look into ways to reinforce our costumes to prevent drops during fights and battles. Hatsume is helping us and the other omegas in our class.
"Exactly," Katsuki says, "not only is this going to protect us in our hero careers, but it was also really fun."
"Kacchan!" Izuku exclaims, mouth open in shock.
"What? It's true. I want him to do it again-"
"Okay!" Eijirou shouts, ending the conversation. "I'm glad that this ended up well, and it's helping you improve your hero costumes." He's blushing up a storm at Katsuki's forwardness, but is now releived that there is no coercion involved in their courtship.
Katsuki clears his throat. "Sorry. I didn't mean to make you uncomfortable."
The trio settle back down and continue to watch the movie. Soon after, Izuku gently wraps his arms around Eijirou's waist and runs his fingers up and down his firm stomach. It's then that his hand brushes over the right side of his abdomen, right beside his hip bone and the alpha simply melts.
Izuku gasps. "Kacchan!"
Eijirou barely registers what's going on as he's floating in utter warmth and relaxation.
"Oh shit, so alpha's do have a button!" Katsuki exclaims. "Where is it?"
"Down by his hip bone, on the right side, in the divot of his V line. Oh! That must be why he hasn't dropped while sparring and fighting. His belt!"
"Damn, he had a built-in button protector all along," Katsuki says, earning a laugh from Izuku.
"Okay, let's cuddle our sweet alpha as he comes out of it."
"Sounds good to me."
Eijirou can't tell if the euphoria he's feeling is from dropping or from his beautifully affectionate omegas.