[Uncle B]

Baby Daddy Drama
Brewing in Hugh Hefner 's Harem?

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Holly Madison, one of the gals in Hef's trio of girlfriends, badly wants to give another child to the 81-year-old Playboy founder. In fact, some wonder if they're already expecting.

The 27-year-old stunner fed pregnancy whispers last week when Hef and his blondterage visited Monaco, and Madison shunned alcohol, wore figure-concealing outfits and skipped parties, including a 22nd birthday bash for fellow Hef-ette Kendra Wilkinson.

A Playboy rep assures us, "Holly is not pregnant, although she would like to be in the near future."

The alpha bunny in Hef's hutch has gone so far as to let Wilkinson and Bridget Marquardt know she can handle the breast-feeding herself.

"I want to have kids with Hef in the next year or so," she told a journo. "When that happens, I just want it to be me and him."

Hef has four children (two with ex-wife Millie Williams; two with ex-girlfriend Kimberly Conrad ).

But he seems to have his hands full just looking after his girlfriends.

Last week, palace guards in Monte Carlo accused them and their E! reality show, "The Girls Next Door," of trespassing. Contrary to reports, they were not arrested. "They went back to meet Prince Albert II at the palace the next day and told him they'd been looking for him," a source told us. "He was like, ‘You know I don't actually live here. I have an apartment in town.' They had a laugh over that."