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In the heat of it all

Summary:

Starting this week is my first week at UA high to become a hero, the number one hero. My first week of being someone I want to be. My first week of no one knowing who I am. My first week without my hag of a mother breathing down my neck about how I need to be a good Omega or I'll never attract a big, strong, wealthy Alpha. My first week of n9t hearing the old hags voice telling me “Stop making that face Bakugo, you need to look pretty for a possible mate”, “Don't swear Bakugo, the Alpha's don't like it”, “don't do this, don't do that, behave like a good Omega”. My first week of no one having to know I'm an Omega. My first week of suppressants, prescribed pheromone patches and wearing Alpha scented sprays.

Notes:

This is my first fanfic on AO3. I'm really excited to write a KRBK fanfic especially cause they are my favorite ship in MHA.

Chapter Text

Being an Omega isn't easy, hell it's hard as fuck. Especially when you're in a hero society and Omegas are treated as lesser and weak. Alpha's are more likely to be heros since they are “stronger” and “bigger” and all that shit. I'm not weak. I'll never be weak.
Starting this week is my first week at UA high to become a hero, the number one hero. My first week of being someone I want to be. My first week of no one knowing who I am. My first week without my hag of a mother breathing down my neck about how I need to be a good Omega or I'll never attract a big, strong, wealthy Alpha. My first week of not hearing the old hags voice telling me “Stop making that face Bakugo, you need to look pretty for a possible mate”, “Don't swear Bakugo, the Alpha's don't like it”, “don't do this, don't do that, behave like a good Omega”. My first week of no one having to know I'm an Omega. My first week of suppressants, prescribed pheromone patches and wearing Alpha scented sprays.
As I walk through the doors of the school's dormitories a cheerful and smiling red head greets me, “I'm Eijiro Kirishima.”
Damn, he smells good. He smells of strawberries and woods. A smell of an alpha? He surely looks like an alpha; tall, sturdy built, a wide frame.
“Ummm… hello? Earth to-” the red head-.... Kirishima says as he waves his hand in front of me a bit.
“Bakugo Katsuki,” I say as I snap out of it not realizing I was staring.
“Bakugo Katsuki,” Kirishima say as if testing the sound of it on his tongue.
“That's what I said, didn't I, shitty-hair,” I say with a huff as I push past him to find my dorm but he stays close behind.
“Why are you following me, shitty-hair?”
“My dorm is also over here, Bakubro,” he says with a smile as he quickens his pace to stay even with me.
I find my dorm easily and Kirishima stops in the same place. When I look over his name is etched on the nameplate on the door next to me.
“Hey, look at that we are neighbors,” Kirishima says with a bright smile as I walk into my dorm and shut the door tightly.
Fuck, this is gonna be a long first week.

○○●○○

Homeroom was supposed to be easy, simple, a fresh start of no one knowing I'm an Omega. A weakling. I walk through the door to class and catch the familiar color of green hair. Deku. How the hell did that weakling of a Beta get into UA high? Plus being quirkless on top of that. I stomp over to his desk grabbing him by the collar of his school uniform, my quirk sparking and crackling off in my other hand.
“Deku,” I growl out, “what the fuck are you doing here?”
“Oh, Kacchan, fancy meeting you here. Heh, right?” Deku says with a shake to his voice.
“Answer the damn question, Nerd.”
“Oh, right, yeah. I was a late bloomer I guess or at least that's what my mom says. Kinda presented as an Alpha a few years back plus my quirk kinda manifested with it. Which if you think about it is pretty cool since that means my genetic make-up of my quirk and my second-gender could be somehow connected since they both presented themselves around the same time-....” Deku says as he starts to ramble off in his creepy-ass muttering.
“Yeah, whatever, Deku,” I mumble as I shove him back into his seat and go back to mine but I can smell the lingering of cinnamon.
“Hey, Bakubro!” A loud excited voice followed by the familiar scent of strawberries and woods says.
Turning I see Kirishima entering the classroom and sitting at the desk next to me. I can practically feel my Omega purring at the closeness of the alpha. “Shitty-hair, can't you sit somewhere else?”
“No can do Bakubro, the other seats are already taken.”
“Then can you just fucking leave,” I mumble mostly to myself but can feel Kirishima tense as if he heard it to.
My fucking Omega won't shut up and keeps trying to fucking purr at the closeness of Kirishima. I reach into my backpack and grab my extra suppressants I keep on me incase my weakness-.... my Omega won't shut up. I quickly put the pill in my mouth and swallow it dry.
“What was that Bakubro?” Kirishima questions me as he looks at me with eyes full of concern.
“Nothing, just something for my headache since you extras keep bothering me,” I say before snapping my attention back to the teacher and what he is saying.

○○●○○

As the last class of the day finishes up I pack up my things and can feeling someone watching me from the classroom door.
“Shitty-hair if you think I'm gonna walk back to the dorms with you you are very wrong” I say as I turn around and am met with green eyes and green hair. Deku.
“Do they know?” Deku asks quietly as he enters the classroom.
“Know what?” I growl out.
“That you're an omega?”
“I'm not,” I say quickly.
“But you presented back in-”
“It was wrong,” I say, cutting him off as I push past him, but he catches my wrist before I could leave
“Kacchan-,” he starts to say.
“No, I'm an alpha. I'm not some kind of weakling omega,” I say harshly as I pull out of his grasp.
“I won't tell anyone,” Deku says suddenly as I begin to walk away.
“There is nothing to tell.”