Sirius was ever one to make the best of an unusual situation. Naked as he was, he still had the nerve to flash a broad smile and wave at the crowd of students which had assembled, apparently to watch him streak. When had it become a spectator sport, he wondered.
No matter. Sirius was no wallflower, and neither was he self-conscious about his appearance. He'd been blessed with a good metabolism, and an athletic bent, and the two combined to ensure that his body stayed in tiptop shape.
"All right, then, off we go." He waved one more time for good luck, before lightly chucking Remus under the chin. "Back in a tick or two, mate," he said, before turning about and trotting off, at a speed that was calculated to make everything on display jiggle.