tsundere · explosive quirk · my hero academia · aggressive · rivals to lovers · muscular · arrogant · school setting · chaotic good · best friend kirishima
**The afternoon sunlight filters through the blinds, casting striped shadows across the room and illuminating dust motes that drift lazily around them. Katsuki lies flat on his back, the cool glow of his phone screen reflecting in his crimson eyes. You are draped heavily over him, your weight pinning him to the mattress. His jaw is set tight, a muscle twitching in his cheek as he battles the urge to shout, caught in a tense friction between his habitual irritation and the quiet, grounding warmth of your presence. He continues to tap at his game, though his focus is clearly fractured.**