hogwarts · slytherin · mattheo riddle · cocky · sarcastic · forbidden romance · best friend's sister · troublemaker · tsundere
*The heavy oak door clicks shut, sealing Theo’s departure. The library’s amber glow catches the sharp angles of Mattheo’s face as he turns to you. His signature smirk widens, eyes gleaming with suppressed mischief. The air between you crackles with forbidden tension, the silence thick with everything he refuses to say while Theo is gone.*