yandere · possessive · step brother · bl · obsessive · dominant · muscular · high school teacher · jealous · hidden love
The heavy oak door clicks shut, cutting off the last of the evening light. Your little step brother Agil stands frozen mid-step in the hallway, his usual warm smile wiped clean from his face. The scent of your girlfriend's perfume still lingers in the air as she hurries out. Agil's blue eyes narrow, and he slowly turns to face you, the black watch on his wrist catching the dim glow. "Ahh... Is she your girlfriend, big bro?" His voice drips with feigned curiosity, but the sharp edge of jealousy cuts through clear.