Chapter Text
"What's wrong, Kacchan?"
Katsuki has been nonchalant since he came back from Best Jeanist's office this morning. They're having lunch together in their shared office. The alpha was sitting over his own desk staring at the window, his empty lunch bowl left forgotten beside him.
Since their debut as the Wonder Duo, they now share an office room together in the agency.
Midoriya was thrilling with the news. Kacchan is amazing! I'm blessed to work with him!
Bakugo on the other hand didn't show any emotion. You better keep your damn muttering to yourself, you shitty nerd! However, they both knew he wouldn't settle any other way.
But right now, Midoriya is preoccupied. Bakugou was quiet, distracted and weird.
"You've been quiet today. What happened in your meeting?"
Izuku left his own empty lunch bowl over his desk and walked over Bakugou's side, who's still quiet as if he hasn't heard him.
"Kacchan? You are freaking me out" the omega snap his fingers in front of the others face, trying to get his attention.
"What? Why?" the blond blinked and slowly pushed the omega's hand off his face.
"What Jeanist said? You've been awfully quiet" the greenie stood right beside him.
"No big deal" he looked over the window again, "we just talked about my rut leave".
"Oh. It's due next week, right?" Izuku squeezed gently the alpha's arm. "How the fuck do you know about that?!" the blond looked at Izuku.
"I can smell when your scent gets heavier, y'know... it's not like I can ignore it" Izuku blushes.
"You fucking weird-wait! You can smell me?" Katsuki was confused. "How can you smell my fucking scent of I wear suppressants?".
"What do you mean? We share an office room, Kacchan. Your scent is everywhere," Deku sniffs the air to confirm what he just said, "and you only retake your suppressants when we go to the field, so the only moment I can't smell you is on missions".
That makes sense, Bakugou though.
"So, what about your rut leave?" he stared at the alpha, waiting for a reply.
"Nice try, freckles. You aren't getting any info unless you finish your damn paperwork".
"C'mon, Kacchan. It can't be that bad, can it?" he insisted.
"Drop it, Deku. I mean it" he said seriously.
"It's ok if you are embarrassed to tell me, but I could help you!" Deku provoked.
Me? GEMG Dynamight? Fucking embarrassed?
As if I'll fall for it!
"Embarrass- I'm not embarrassed, you shitty maniance. Fuck you!" and Katsuki does not take the bait.
"Than prove it, Kacchan" they stared at each other, Midoriya was right beside him leaned on the same desk the other hero was sitting on.
"You are damn noisy, you know that?" he angrily sighed, "I have to spend my damn rut with some extra" he answered annoyed by falling for it.
"Okay...?" Midoriya asked confused, "have you though about who you are gonna invite?"
"That's one of the fucking problems, you damn idiot! I don't want anyone inside my fucking den!!!" Just the though of it makes his skin itch, in a very bad and disgusting way.
"Oh, I see." Deku tap one of his fingers on his chin to think, "why don't you just use some scented sex toys then? Wouldn't it be more comfortable for you?"
"That's the other problem..." his jaw tensed, I can't believe I'm talking about it with this fucking loser, "Jeanist said I have to fucking knot someone, because of some dumb clinical exams and he has to report those to Hero Commission."
"What do you mean, report your clinical exam-" he stoped mid-sentence with eyes open wide, "Oh my God, Kacchan! You've been skipping your ruts all these years?!"
"Tone it down, you fucking freak", Bakugo grabbed Deku's face in order to shut him up, "do you want to spill my business for everyone and their mothers?!"
He almost growled to the thought of his privacy being thrown out of the damn window.
"Soowy, Kchaan" Izuku reply a muffled apology, and then reaches for Katsuki's wrist with both hands to slowly release his face. "I didn't mean to yell, that was a bad move".
"How the hell would you even know about that?!" I can't believe the nerd figured my shit out!
"It just made sense, you know? Back then at high school. You didn't seem affected when your rut was coming, even though you smelled great and inviting-"
"Gross"
"-it was like your scent was telling us something different from your body, and different from you".
"Just tell me your fucking point, Deku. I don't wanna know the details about you all perverts sniffing me back at U.A." he was secretly embarrassed with this conversation.
"I though you were repressing your inner alpha to keep all that controlled-and-above-us-all image you liked to show us so much...".
"Hey! Watch it."
"- but you couldn't even smell us, right?"
"What part of 'I was on suppressants' this damn brain of yours couldn't keep?" Katsuki was annoyed with all the mystery.
Izuku frowned, then replied.
"The suppressants are supposed to get your pheromones in control, not block everyone else's. You are not one with your alpha, Kacchan. That's very dangerous.
You both want things totally different from each other. This is the main symptom of skipping a rut or heat.
Each time you repress your inner alpha, the chances of a fatal drop or an irreversible feral state increases."
Well, fuck.
"How do you even know all that? And what the fuck you mean with my alpha and I not being the same?"
"Kacchan... I'm sorry for doing this without your consent," he dropped down from the desk and stood in front of his hero partner, "but I don't know how else explain this to you" Izuku was suddenly quiet, staring at Katsuki.
"What do you mean?"
But Midoriya only replied with a stare and a silence.
...
"Was I supposed to say something? What the hell are you doing?"
Izuku shivered, is it the weather? But the windows are closed...
"Quit staring me with those crazy eyes, nerd!"
Then Izuku looked down and closed his eyes for a moment.
"Kacchan, I've been releasing my pheromones all this time, and looks like you didn't notice. Haha," that laugh didn't sound genuine.
"However, your alpha is reacting to me with your pre rut pheromones. Did you know that?" Izuku finally opened his eyes, his pupils were blown wide.
"What the-" hell is going on?