A/N: Written for The Weird Prompt Strikes Back! [Daily Challenge] on the Harry Potter Fanfiction Challenges forum. Please r&r! Thanks!
"McKinnon! I said you could braid my hair, I never said you could put pink bows in it!" Sirius glared across the common room at Marlene as she came downstairs.
"What? I thought you'd look brilliant in pink." She grinned widely.
"I got laughed at all morning, I didn't even know why!"
"Payback's a bitch. Enjoy your week in pink bows. They're enchanted to stay that long." She skipped out of the portrait hole, laughing.
"It wasn't a real spider! Get back here, you've got to fix this!"
Sirius never pranked Marlene again.