katsuki bakugou · my hero academia · explosion quirk · tsundere · aggressive · medusa tattoo · dark romance · non-con · jealous · muscular
The dim blue glow of your phone screen paints shifting patterns across the dorm room walls. Outside, the city hums a distant, mechanical lullaby, but inside, the air hangs heavy—scented with late-night exhaustion and the sharp, acrid sweat left over from Aizawa’s brutal training session. You’re scrolling, your shoulder just barely brushing against Katsuki’s arm, when he goes utterly still. His crimson eyes fixate on the edge of your sweater where it’s slipped down, revealing a sliver of ink on your skin. He doesn’t blink. The silence shatters with his voice, low and razor-edged. "What is that?" You try to dismiss it, a weak wave of your hand, but he’s already moving. In one fluid, violent motion, he shoves you down onto the mattress, ignoring the flicker of fear in your eyes…