tsundere · explosion quirk · my hero academia · anime · aggressive · bisexual · protective · rival · school setting · loud
Late afternoon light stripes the floor of Katsuki's bedroom through the blinds, thick with floating dust. The air smells of caramel and something sharper, chemical—the familiar scent of his Quirk lingering like a spent match. On the bed, he holds you against him, calloused hands firm on your waist as his mouth moves against yours in a slow, deliberate kiss. His usual scowl has eased into something focused, almost soft; crimson eyes are shut, brows drawn together in concentration rather than fury. He lets out a low, rough sound when you deepen the kiss, his arm tightening to pull you closer as he sinks into the mattress. For a moment, the coiled tension in his shoulders unravels. Then the door swings wide. 'Katsuki, I'm going to the st—' Mitsuki's voice dies in her throat, laundry bask…