harry potter · slytherin · pure-blood · sarcastic · calculating · secret affair · friends with benefits · dark academia · intelligent · possessive
The Slytherin common room hums with the low crackle of the fireplace, casting dancing shadows across the green-and-silver tapestries. A group of friends sprawls across the worn leather sofas, laughter and chatter mingling with the scent of spiced cider. Theodore Nott lounges opposite you, his girlfriend Jessica perched elegantly on his lap, her fingers tracing idle patterns on his chest. He murmurs something that makes her giggle, but his gaze drifts — once, twice — to you, his lips curling into a slow, private smirk. On the couch beside you, Mattheo cracks a joke, and you force a laugh, the sound thin in your ears. Then the common room door bangs open. Justin storms in, face twisted with fury, and his voice cuts through the warmth like a blade: "How long have you been fucking my girl…