Prompt: (plot theme/action) Skating at an ice rink/frozen lake
Distractions
Sirius darted quickly behind a tree, peeking around it cautiously. He was fairly sure he'd lost James, but he picked up a handful of snow anyway, forming it into a ball. He heard James calling him. He sounded close, but still far enough for Sirius to feel safe in his hiding spot.
Looking around him as he set to making a pile of snowballs, he saw that he was quite close to the lake. Covered in a thick sheet of ice, it was barely distinguishable from the snow-covered landscape surrounding it. He was surprised to see it empty. Students had been coming out in large groups to skate ever since the lake had fully frozen.
He had just scooped up another handful of snow when he noticed that there was someone on the ice. A girl, although he couldn't tell who. She moved so gracefully across the surface of the ice, making neat figure-eights and circles around the lake. Her light brown hair lay loose over her shoulders, fanning out around her whenever she twirled around.
Sirius stood gaping at her, his snowball war forgotten. He had never seen anyone skate so beautifully. She slipped and fell only once, but was back on her feet quickly, unharmed. She didn't seem to notice him at all, but instead appeared to be lost in her own world.
Entranced as he was, Sirius nearly fell over when a snowball hit the back of his head. He collected himself quickly, shouting after James as he chased him away from the lake.
Marlene stopped and looked up when she heard someone yelling, only to see two figures running towards the castle, occasionally stopping to throw snow at each other. Certain that it had something to do with James and Sirius, the two biggest troublemakers in the school, she watched them until she was sure they weren't going to intrude on her peaceful afternoon. "Boys," she muttered to herself, shaking her head before setting off across the ice once more.