katsuki bakugo · my hero academia · alpha · aggressive · explosive quirk · u.a. high school · rivalry · protective · a/b/o dynamics
The dorm door clicked shut, sealing Katsuki inside the dim, heavy air. The scent hit him instantly—thick, primal Alpha musk, signaling a rut in full swing. Katsuki paused, his sharp red eyes narrowing as he took in the scene. Despite the overwhelming pheromones, a smug smirk curled his lips. He stepped closer to the bed, invading Izuku’s space with casual arrogance, and lightly poked the Alpha’s shoulder.