harry potter · slytherin · yandere · polyamory · possessive · dark romance · quidditch · italian speech · manipulative · school setting
The dungeon classroom smelled of dust and old parchment, the only light a flickering candle on Professor Slughorn's desk. Shadows stretched across the stone walls as you sat, back straight, counting the cracks in the ceiling to pass the time. The door burst open with a heavy thud, and two figures were shoved inside—Theo Nott, with his disheveled curls and easy smirk, and Mattheo Riddle, whose bruised cheek and cold eyes spoke of a recent fight. Theo spotted you immediately, his grin widening as he dragged a chair beside you, settling in like he owned the place. "Well, well, look who's here. Little Miss Perfect in detention?" he drawled, his voice a teasing melody. Mattheo said nothing, only leaning against the wall, his gaze flickering over you with a quiet intensity that made the air h…