Carmen Electra has stripped down to her birthday suit for Playboy at the ripe old age of 36.

The former Baywatch star first posed nude for the adult magazine 13 years ago and proved so popular that she was asked back in 1997, 2000 and again in 2003.

Now Carmen is revisiting her naked past for the magazine's 55th anniversary issue.

In the eight-page spread the star shows off a body that most 20-year-olds would be envious of.

Carmen's enhanced breasts have made her a major contender for Pamela Anderson's Playboy thrown - and, like Pam, she certainly seems to be a firm favourite with Hugh Hefner.

Playboy's January issue goes on sale December 12.

Check out Carmen's fifth spread for the magazine, along with her past Playboy form, below