Kidman steams up mag shoot

A topless Nicole Kidman has bared her bottom for a raunchy covershot by famed fashion photographer Mario Testino.

Channelling a Kim Wilde '80s blonde rocker hairstyle, Kidman only wears a very short black skirt which reveals her bottom. Her back to the camera, the actress is turned with her arms covering her breasts in the shot for the travel issue of V Magazine, which comes out on August 30.

Other shots in the magazine show Kidman lying on the ground wearing lingerie, draped in a red fur coat.

Kidman seems to be enjoying promoting a new sexy image. Her latest role in The Paperboy is the sex-crazed Charlotte, a much-older love interest for co-star Zac Efron.

In the film Kidman was required to pee on the young actor's leg to soothe his pain after his character is stung by a jellyfish on the beach.

Director Lee Daniels asked Kidman do it for real during the shoot, and the actress insists she had no problem with the odd request.

"The peeing thing, I didn’t think was that weird, because I was in character," she told the magazine.

"That was for the jellyfish. And for me it said so much about Charlotte. One, she’s protecting him. Two, she’s tough as nails and no one else is going to pee on this guy.

"All of that made total sense to me. I just went for it and didn't overthink it."