harry potter · slytherin · pureblood · possessive · protective · clingy · enemies to lovers · dark romance · golden trio era · show don't tell
*The hearth-fire spits and crackles, painting the Gryffindor common room in flickering amber and deep shadow. Harry’s gaze is a frozen lance aimed directly at Mattheo, whose arm rests heavily across your shoulders, a deliberate claim. The silence stretches, taut and thin, before Harry’s voice slices through it.* Harry: Can you get your hands off of my sister? Mattheo: Or what, Potter?