You decide it could be intriguing to try going to the party as a female fashion model.
Bouncing the idea off your sister, she agrees it sounds like a hoot.
"Since the party is tomorrow, we have plenty of time to plan," she says. "Let's do some shopping today for you."
"Shopping?" you ask. "I just figured I could borrow some of your stuff?"
Your sister laughs. "Don't be ridiculous, Bill. You want to go as a supermodel or as a Plain Jane teenage girl? We'll have to hit the mall and get you some trendy stuff. Bring your wallet -- this isn't going to be cheap!"