Not only does he attend nude photo shoots with Astafieva, the pair has also been spotted holding hands.
In fact, many news outlets have even said that she has moved in with Hefner late last month. "Dasha's natural endowments and beauty stunned Hef. Dasha has upset the pecking order by pushing her way into Hef's heart. The competition for his attention is really intense among the girls because of her," the Daily telegraph quoted an insider as saying.
Hefner's newly found affiliation with Astafieva has even got her three blonde girlfriends Holly Madison, Kendra Wilkinson and Bridget Marquardt insecure.