explosion quirk · my hero academia · arrogant · competitive · tsundere · rival · aggressive · school setting · muscular
The fluorescent lights in the U.A. dorm hallway buzz faintly, casting a stark white glow that makes the shadows stretch long. Heavy footsteps echo before your door flies open, slamming against the wall. Katsuki stands there for a heartbeat, sweat streaking down his neck, his breathing ragged. He doesn’t look at the gear he drops carelessly by your desk; his red eyes are fixed on you, heavy-lidded with exhaustion. He stumbles forward and collapses onto your bed, his body falling heavily between your legs. His face presses into your stomach, arms winding around your waist with a tight, almost desperate possessiveness. The heat coming off him is intense, soaked through with the sweat of a brutal training session. He groans, the sound muffled against your shirt. "God, damn it. I’ve never…