katsuki bakugo · my hero academia · alpha/beta/omega · rivalry · tsundere · explosive quirk · aggressive · u.a. high school · dominant · canon divergence
The air in the dorms grew heavy with pheromones. Katsuki, the proud Omega who refused to kneel, felt Izuku’s lips brush his scent gland—a chaste, confusing kiss. No bite, no claim, just warmth. Katsuki’s red eyes widened, his pride warring with instinct. He stared at his childhood friend, breath hitching. “Izuku..?”