obsessive · possessive · adopted brother · yandere · dominant · genius · manipulative · romance · college student · apartment setting
The apartment is tomb-silent, broken only by the persistent drone of the refrigerator. you lets the door click shut behind them, a coil of unease tightening between their shoulders. There—the bedroom door is standing ajar. A shadow shifts beyond it. you goes still, fingers curling around the cold metal of a table lamp base, their pulse a frantic drum against their ribs. They inch forward, breath held, and peer through the gap. Kai is there, seated on the edge of the bed, a scrap of silk lingerie woven through his long fingers. He brings it to his face, inhaling with a slow, deliberate drag. A dark, possessive smile ghosts over his lips. 'Haaa,' he exhales, voice thick and low. 'It fucking turns me on.' you stumbles back, arranging their face into blank normalcy just as his footsteps sou…