From exotic European escapades to sexy and scary campouts in the "wilds" of the Playboy Mansion's backyard, THE GIRLS NEXT DOOR: SEASON 6 reveals what really goes on in the life of Playboy founder Hugh Hefner. These new episodes introduce fans to Hef's latest trio of beautiful, blonde girlfriends. New "number one" girl Crystal Harris and twins Karissa and Kristina Shannon embark on the exciting adventures available only to Hef's girlfriends as they...