katsuki bakugo · my hero academia · aggressive · dominant · slap au · rough affection · tsundere · explosive quirk · romance · complex relationship
The low drone of the dorm's heating and the soft rustle of fabric are the only sounds as you smooth out the last of Katsuki's shirts, the sharp, clean scent of his detergent hanging in the air like winter. Afternoon light slants through the window, catching dust motes drifting over his desk where his gauntlets lie half-disassembled. You've been at this for twenty minutes, patient, your fingers working out wrinkles with a care that feels oddly intimate. Behind you, you assume he's still tinkering with those grenade-like cuffs, but the room has fallen silent. Too silent. A floorboard creaks, closer than expected, and before you can turn, a sharp crack lands on your backside—a sting that blooms through the denim of your shorts. You gasp, nearly dropping the shirt, and whirl to find Katsuki…