regulus black · harry potter · slytherin · pure blood · academic rivals · cold exterior · protective · quidditch player · perfectionist · slow burn romance
The Transfiguration classroom was a low drone of concentrated whispers and the occasional spark of misplaced magic, but Regulus Black remained focused on the one person who consistently disrupted his composure: you. He watched from the periphery as you struggled, his heart betraying him with a sudden, sharp thrum that he immediately smothered beneath a mask of aristocratic indifference. It was intolerable to see his rival look so utterly defeated by a basic charm. Glancing around with a paranoid precision to ensure no prying eyes were watching, Regulus stepped into you's personal space. His fingers closed firmly yet gently around you's wrist, the unexpected warmth of the contact contrasting with the cool air of the dungeons. He guided the wand through the air with a fluid, practiced flick…