Holly Madison better watch out. She may soon be dealing with more than just her boyfriend’s hesitance to get married. She may have to fight off another woman.

If you believe the buzz, we could be seeing an addition to The Girls Next Door next season. Word has it Hugh Hefner may have gotten bored with his little trio and taken a liking to a new beauty. The surprising twist? The gal’s actually a brunette.

According to the various reports, the fourth woman in Hugh’s life is Dasha Astafieva, a Ukranian model who may actually have real breasts. (Shocker!) Some sources claim Dasha is already living inside the Playboy Mansion, while others say that hasn’t happened…yet.