Chapter Text
Having been so pampered during his pre-heat, Katsuki’s actual heat had gone by relatively well (that is to say, with minimal pain). He’d filled his nest with donated clothing from his entire pack— even those he wasn’t that close with had at least a sock or two buried under a few blankets. Of course, once his brain fog cleared up a bit he’d thrown them out and under the crack of his door, but still! it was the thought that counted.
Loathe as he was to admit it, he was extremely ready to see his pack again.
deku 🤓
hey nerd
im fine
heading out now
5:01 PM
KACCHAN!!!
does anything hurt?
i can give you a massage!!!
i hope you’re feeling okay
see you soon!!!
5:01 PM
damn bitch
stfu
5:02 PM
yes boss!!
i’ll be so quiet
🤐🤐
5:02 PM
He put on the sweater he stole from Mina (oversized on her, just a little loose on him, but still comfy enough) and luckily had the foresight to hide in his closet and away from the overbearing slick scent of his nest (he’d have to wash everything later, but surely his pack wouldn’t notice if he just…kept everything, right?) and ignored the soft purrs resonating in his chest. He left his room for the first time in six days, limbs achey and joints stiff from laying down 90% of the time.
As soon as the elevator dinged, all heads turned to him.
He barely had time to step out of the elevator before Deku pounced on him.
Like an overeager dog who thought it was still tiny (fuck his growth spurt, by the way—), “Kacchan!”
“Fuck!”
Izuku beamed, leaning in to scent him, and Katsuki was just about to tell him to get the fuck off of him he was just here for a snack—before the alpha frowned, his nose twitching.
“‘Zuku?”
Izuku growled at him, features twisting upwards into a snarl as he took a step back. Katsuki didn’t care —really, he didn’t, it was just his stupid hormones— but his heart sunk to his ass.
Guilt rolled off of Izuku in waves, clogging Katsuki’s nose, but his rigid posture and expression remained the same. That stupid expression caused Katsuki’s scent to sour with unfounded shame in response, stomach twisting in anxious knots as he took a step back towards the closed elevator doors.
He finally snapped, One for All crackling around him and petrichor filling the room. “Take it off.”
Katsuki growled back. “Fuck you. Don’t tell me what to do. Fuck’s your problem?”
“Take it off, Katsuki.”
Katsuki thought he was imagining the tiny sprinkle of command in the alpha’s voice, but he was proven wrong when Mina snarled at Izuku’s back, rising from the couch and quickly inserting herself between them. Her arms were crossed and her teeth bared in a blatant show of hostility.
“Izuku, what the hell’s wrong with you? Stop fucking speaking to him like that. You’re never like this.”
“I’ll speak to him how I want—“
“Excuse you?”
The smell of char and smoke filling the room, “Calm the fuck down—“
“No! He’s treating you like an object, are you just gonna fucking take that?”
“He’s my omega, get your filthy scent off of him—“
A couple of people looked at each other with wide eyes, Iida quickly rose from his seat—
“He’s not your omega, he’s ours!”
“He’s mine—“
“I’m not anyone’s fucking—“
“Well maybe if you claimed him—!”
Tenya using his quirk in a panic didn’t get him there on time to stop a wildly growling Izuku from tackling Mina to the ground.
Tsuyu winced from the couch.
“This behavior is unacceptable! Your classmate just came out of heat, he is exhausted, and you two are fighting like—“
The smells of heavy petrichor and overbearing perfume filled the common room. An anxious, metallic aldehydic scent came up to overpower the other two as Iida continued his lecture.
Bakugou whimpered loudly, shrinking into the wall and leaving his bitter, terrified scent all over it. Stupid fucking hormones. Stupid fucking post-heat. Stupid fucking heat. Stupid fucking pre—
“Kacchan!”
”Bakugou!”
“I’m sorry, Kacchan, I didn’t mean to, I just—!
“I’m sorry Bakubae, I got carried away, I—“
“Both of you shut the fuck up,” he snapped. Or, more accurately, tried to snap. He ended up whining it out. Iida moved to comfort him, but of course Izuku beat him to it.
He gathered the omega in his arms, rambling apologies into his hair and frantically rubbing his scent all over Mina’s sweater. She felt a growl bubble up before she quickly swallowed it down.
“I’m sorry, I’m sorry, Kacchan, you know how I get, I didn’t mean to scare you,” he whined, completely docile compared to how he was just a few seconds prior. “My poor Kacchan. You were probably so spooked, huh? It’s okay, it’s okay, your alpha’s here… I’m sorry. I just wanted you to take off that sweater… can you take it off? Please? For your alpha?”
The common room was stunned into silence. They’d never met someone so shamelessly guilty.
Katsuki groaned irritatedly, whacking Izuku’s back uselessly from where he had him pressed into the wall, freckled face now buried in his neck and arms at his sides, caging him in. “Stupid fucking knothead—!”
“i know, I know. I’m sorry. Please? I have your second favorite hoodie upstairs, please, let’s go put it on? Why didn’t you wear your favorite?” He questioned, wide green eyes staring into the omega’s soul, unapologetically taking huge breaths of Katsuki’s sweet and spicy scent in. He looks like he’s trying to eat the fucking air, Katsuki noted, his irritation unfortunately leaving him and being replaced with a sort of exasperated fondness as Izuku lapped at his neck. I probably have Stockholm Syndrome or some shit.
He tried to whisper. Really, he did. But the common room was too fucking quiet. “It smells the most like slick, you nasty fucking freak, why the hell would I wear that down?”
It was like someone injected him with 50 gallons of pure serotonin the way his attitude did a full 180.
“Really? Kacchan wore my hoodie during his whole heat? Ah… Kacchan’s amazing!”
“Shutthefucku—“
“Is Kacchan wearing my socks, too?!” He toed at Katsuki’s Pro Hero Training Series: Deku socks with his own Dynamight-socked feet.
“Shut the fuck up you piece of shit! They’re mine!”
Izuku squealed excitedly, picking Katsuki up and spinning him around before lifting him (shouting) into a bridal carry and mashing the elevator button. “Can Kacchan buy my hoodie too? I think he’d look so cute in it! Actually, scratch that, I’ll buy Kacchan my hoodie! And then I’ll buy Kacchan’s hoodie! Or, does Kacchan want to buy my Kacchan hoodie? Whatever works! Kacchan, did you know they’re making a new Kamui Woods documentary soon?” The doors opened and Izuku stepped inside. “I think they’re making Pro Hero Training Series pajamas. Can Kacchan wear mine, please? My boxers too? And I’ll wear Kacchan’s pajama bottoms, and I’ll buy the shirt, too, even if I don’t really wear—“
The pair returned twenty minutes later, Katsuki clad in a heavily-worn All Might hoodie pulled up to his chin and suspiciously teeth-shaped indents on his calves, as well as a deep-red flush on his face. Izuku had the faintest slap mark on his cheek. Their scents were ridiculously pleased.
Right. Well. They were not touching that with a ten-foot pole.
(At least for the next few hours.)