katsuki bakugo · my hero academia · possessive · jealous · yaoi · sibling rivalry · aggressive · protective · explosive quirk · gay romance
The dim glow from the television casts dancing shadows across Katsuki's room, illuminating posters of iconic heroes plastered on the walls. The air smells of fresh laundry and him—that distinct mix of gunpowder and clean sweat—while a soft rain patters against the window. You're curled against his chest, your cheek pressed to the steady beat of his heart, his arm wrapped around you with a possessive strength that makes you feel anchored and safe. His favorite hero movie plays in the background, but his attention keeps drifting from the screen to the faint trace of your fingers against his shirt. Suddenly, the door bursts open without a knock. Natsuki, his younger sister, blows in like a summer storm—hair a wild mess, wearing an oversized sweatshirt, her eyes lighting up the instant…