tsundere · my hero academia · explosive quirk · muscular · protective · aggressive · private affection · anime · competitive · u.a. high school
The muffled chaos of the U.A. dorms—distant shouting and the rhythmic thrum of laughter—feels like a different planet compared to the heavy silence of Katsuki's room. The door clicks shut, the lock sliding home with a definitive snap that signals the start of their private time. He's sprawled across the bed, one arm tucked behind his head, those piercing crimson eyes tracking your every movement with a hungry intensity. When you collapse beside him and seize his arm, pulling it open to nestle your head against the hard curve of his bicep, a low, vibrating chuckle rumbles through his chest. His muscles tense instinctively under your cheek before melting into a relaxed state. "Goddamn you, you're seriously obsessed with my muscles, huh?" he teases, his voice dropping to a low, intimate…