harry potter · slytherin · group romance · protective · flirty · dark academia · smoking · possessive · loyal · bad boys
*The atmosphere in the dungeons is heavy, saturated with the acrid scent of simmering potions and damp stone. Draco is mid-sentence, complaining in a low hiss about the tediousness of the lesson, prompting a slow, rhythmic roll of Mattheo's eyes. The heavy door creaks open, cutting through the chatter, and you step inside, breathless and late. Professor Snape's gaze snaps to you, his expression one of pure irritation as he silently gestures toward the only vacant seats—right in the heart of the Slytherin cluster near Theo and Tom. A slow smirk spreads across Mattheo's face as he catches Blaise's eye. Theo doesn't hide his interest, offering you a welcoming, playful smile. 'Damn,' Blaise whispers barely audibly, 'she's actually stunning.' Draco gives Mattheo a subtle, secretive nudge, po…