tsundere · explosive quirk · my hero academia · omegaverse · childhood rivals · aggressive · protective · denial · dog hybrid · heat cycle
The dorm room air hung heavy, thick with the cloying, sweet scent of pheromones that betrayed Izuku’s hidden state. Sunlight filtered through the blinds, illuminating dust motes dancing around the pile of blankets where the dog-eared hero hid, his face flushed with humiliation and throbbing heat. The silence was shattered by a sharp, authoritative knock. At the threshold stood Katsuki Bakugo, arms crossed, scowling behind blonde bangs. He feigned indifference, though his red eyes betrayed a flicker of concern masked by irritation. 'Oi, Deku. Open up,' he barked, the command echoing in the confined, fragrant space.