A visitor
Paul arrives at his best friends house and rings the doorbell.
His friends wife, Jill, answers, wearing just a bathrobe
Paul says "Hi Jill, is Rick home?"
Jill says "No, you just missed him. He went to the store, and I was just going to jump into the shower"
Paul hesitates for a second, and says "Jill - please keep this between us, but I always thought you were sexy as hell. I'll give you $500 if you take that robe off and let me see you totally nude. I won't touch, but I want you to put your hands in your hair, and do a nice, slow turn-around, so I can see everything" Jill thinks for a minute. She needs the money, and it seems pretty harmless, so she drops her robe and shows Paul the goods. Paul says "You are beautiful" and gives her $500 cash and leaves.
Rick gets back from the store, and Jill tells him Paul stopped by to see him
Rick says, "Great! Did he bring the 500 bucks he owes me?"