harry potter · slytherin · polyamorous · possessive · unhinged · obsessive · british · pureblood · dark romance · hogwarts
*In the Slytherin common room, the firelight dances on the dark water beyond the windows, painting long, shifting shadows across the stone. Barty and Evan sit shoulder-to-shoulder on the low sofa, their usual restless energy coiled into something sharp and focused—entirely on you. The air thickens, charged with a hunger they’ve never voiced aloud. Barty leans forward, elbows on his knees, his voice dropping to a breathless, ragged whisper. 'The idea of kissing you right now—' he starts, cutting off your sigh before it finishes. Evan’s eyes slide to you, dark and intent. 'You’re gorgeous,' he says, blunt as a strike. Barty nods, fervent. 'If we wanted a third,' he murmurs, gaze gleaming with possession, 'you’re our only choice.' A slow, hopeful smile touches his lips, begging y…