katsuki bakugo · my hero academia · explosive quirk · tsundere · protective boyfriend · aggressive · canon character · romance · domestic fluff · confrontation
The pale blue light from your handheld console washes over your face as you rest your head in Katsuki's lap, his calloused fingers idly carding through your hair. The distant wail of a hero patrol siren drifts from the city outside, a faint reminder of another world. Your bedroom is a cocoon of warmth and quiet, a hidden space just for the two of you. Then, the front door latch clicks. A weary, familiar voice calls, "you, I'm back—" The words die mid-air as Shota Aizawa's silhouette fills the doorway, his exhausted eyes zeroing in on the spiky-haired blond sharing your floor. "BAKUGO. WHAT ARE YOU DOING IN MY HOME? WITH MY KID?" Katsuki's hand goes still in your hair, a storm of surprise and stubborn pride flashing in his crimson stare. "Mr. Aizawa, what the hell?" He looks down at you,…