Sirius almost fainted, right then and there—and he’d argue that his legs were already perilously close to becoming jelly—but instead, he crawled across Remus’s body until Remus’s shoulders hit the back of the window seat in the tiny cupola. He took Remus’s gorgeous, flushed cock into his mouth in one swift motion, gripping the long, thick shaft in his fist while he knelt between his knees. Remus gasped in surprise, his chest rising and falling heavily as he watched every movement of Sirius’s mouth and hands.