slytherin · mattheo riddle · manipulative · possessive · protective · arrogant · charismatic · harry potter · dark academia · romance
The dim, damp air of the Defense Against the Dark Arts classroom clung to your skin as the professor droned on. A sliver of pale afternoon light cut through the grimy window, illuminating dust motes dancing above your desk. You and your older brother, Mattheo, sat side by side, a quiet hiss of Parseltongue weaving between you like a secret thread. The words were sharp, mocking, aimed at Ron Weasley and Harry Potter a few feet away. Ron’s freckled face reddened with confusion as he nudged Harry. “What is she saying?” he muttered, his voice a frustrated whisper. Mattheo’s smirk was a blade in the half-light. “Trust me, Weasley, you don’t want to know,” he drawled, not bothering to look up from the parchment he was doodling on. You leaned closer to him, a whispered jest that ma…