Grease is the word: Eva Mendes and Jamie Dornan heat things up in the Calvin Klein Jeans Fall '09 ad campaign! Photo courtesy of Calvin Klein.

Just when we thought the Calvin Klein Jeans billboard in NYC's Soho might be pulled for its racy ménage à trois inference, the brand continues to turn up the heat with a topless and sweaty Eva Mendes for the follow-up CK Jeans ad campaign.

Mendes and male model Jamie Dornan (aka Keira Knightley's ex), the Steven Klein campaign features the two cavorting in Palm Springs, Calif. in various states of undress, giving the ad's new "Body" jean little to no clothing to compete with.

This is Mendes' second year as a Calvin Klein model, she previously starred in Obsession fragrance and Calvin Klein Underwear ads. Dornan has previously modeled in two other campaigns with the brand, including working with Kate Moss and Natalia Vodianova.

Mendes and Dornan team up again, as does lensman Klein, for the Fall '09 Calvin Klein Underwear campaign. Mendes smolders in black lace bra and panty sets and a sexy garter belt, while Jamie Dornan provides for a nice (and toned) backdrop, in hard to keep on white briefs.

The thighs the limit: Eva Mendes in Calvin Klein Underwear's Fall 2009 campaign. Photo courtesy of Calvin Klein

Styled by Love magazine's editor-in-chief Katie Grand, the steamy underwear shoot shows off Mendes' curves but is it too revealing?

Eva Mendes and Jamie Dornan get intimate. Photo courtesy of Calvin Klein

Leave a comment below telling us what you think. Sexy or scandalous?