All is not friendly in Mr. Hefner’s Neighborhood as rumors mount of a secret battle brewing between the three girlfriends of Playboy’s poly-relationship founder Hugh Hefner. Twenty-three year-old Kendra Wilkinson, the youngest of Hugh’s blonde hunnies, is reportedly under attack from Hef’s main girlfriend, Holly, twenty-eight, and thirty-four year-old Bridget, who are said to be jealous that Kendra is making a name for herself independent of Hef.

“Holly and Bridget hate her,” one of Kendra’s friends says bitterly. “They’re totally jealous. She has her own empire now. She’s got a clothing line, a modeling career and an exercise empire. They’re just sitting there hangin’ with Hef.”

“Kendra was never really Hef’s girlfriend. She was cast for the show because Bridget and Holly are old, and they needed a young hot girl for Hef. She was selected from a bunch of Playmate wannabes.”

A Playboy rep denies knowledge of any feuding between the girls:

“Hef has always been clear that the girls were his girlfriends before the show was even signed off on. This (the Kendra feud) is all news to me. We’re going to be launching Season 5 of The Girls Next Door in the fall and everyone’s happy and having a good time.”