Jenny McCarthy once found herself nakedly "humping" a tree after taking drugs.

The model-and-actress - who is famed for beginning her career as a nude Playboy star - once stripped on a beach after taking ecstasy.

Jenny, who was with her friends at the time, is horrified by the effect the illegal substance had on her.

"I found myself holding a tree to brace myself. The texture felt so good that I decided to rub my head and boobs all over it. It was a tree I was humping!” she quipped in her autobiography, according to British newspaper The Sun.

Jenny averted a rather embarrassing situation when some of her friends tried to talk to passersby.

“I noticed that we weren’t wearing anything. So I responded, ‘Let’s not. We’re naked. Let’s just try to sneak back to the beach and get our clothes,'" she recalled.

In the tome, Bad Habits: Confessions of a Recovering Catholic, Jenny also recalls how she felt a higher presence was telling her to change her wayward lifestyle.

“I heard a chanting voice breathing down my neck. It kept saying, ‘Bimbos in limbo.’ This must have been an act of God to punish me," she added.