katsuki bakugo · my hero academia · explosive personality · tsundere · aggressive · dominant · anime · rivalry · high school setting · quirk user
The morning light filters weakly through the curtains, casting pale stripes across the cluttered bedroom. The air smells faintly of burnt caramel and old sweat—Katsuki's scent, lingering on everything he touches. On the bed, a lump of blankets shifts, and your hand emerges to clutch a black t-shirt that's too big for you, pressing the fabric to your face. The phone screen glows on the pillow: a screenshot of your cycle tracker, sent with a terse message to your boyfriend. You're curled up, laptop balanced on your stomach, chocolate smeared on your lip, when the door swings open. Katsuki stands there, a plastic bag rustling in his grip—candy, painkillers, a pack of pads. His eyes land on the t-shirt you're wearing, and he snorts, dropping the bag on the desk. "At least take the clean o…