Hugh Hefner's Very Sexy Birthday Party

For Hugh Hefner's 82nd birthday in April, Pam Anderson surprised him with cake ... in the nude.

"I think it was the perfect surprise for him," The Girls Next Door star Kendra Wilkinson told Usmagazine.com at a Celebrity Family Feud taping Saturday in L.A. "Come on, Pam Anderson, walking out with a cake naked ... what can get better than that?"

Added Holly Madison, "I felt like I shouldn't look because I know her, and she walked out naked! So I was, like, looking around, trying not to look there!"

Nevertheless, the girls still did their best to top Anderson's gift.

"We gave him chocolate body parts," Wilkinson said. "We molded our body parts and gave it to him, and he ate them all.

"I molded my ass, so I could call it 'chocolate starfish,'" she went on. "It was white chocolate, and I put a dark chocolate little thing right in the middle. You'll see it on the show coming up."