Leave it to a Playboy model to somehow manage to slut up something as simple as getting the mail. Here's Karissa Shannon, one of the twins that used to pretend to take Hugh Hefner's wrinkly old wiener, wearing nothing but her USA sweater showing off her bare ass. How come when I do this kind of thing I get nasty letters from the condo board taped to my door? Obviously these are staged, she didn't have enough time to put any pants on, but her hair and make up is done. That a girl. At least she's supporting the World Cup team.         Related Articles: Holly Madison's Breasts Are WOW! Holly Madison's Boobs Are Up For Grabs Holly Madison Hotness Is Undeniable Holly Madison Upksirt Pictures Photos: PacificCoastNews