Despite initial reluctance, Jessica Biel has agreed to bare all in her new movie.

The 25-year-old actress, who is currently dating pop hottie Justin Timberlake, is set to show off her boobs and bum in a new movie alongside Forrest Whitaker.

Biel will star in Powder Blue as a stripper who is trying to earn money to look after her terminally ill son.

"Jessica signed a contract that explicitly details the bare minimum fans will see - including shots of her breasts and butt," a source told US Weekly.

But speaking recently about the role, Jess admitted that the idea of getting naked on the big screen was a prospect that frightened her.

"It definitely feels vulnerable to be naked in front of anybody, let alone a film crew.

"I don't have to be fully naked for the movie. I haven't decided exactly about the nudity. It's a tough one. I'm considering it but it's a very scary thing to do."

We wonder what Mr SexyBack thinks about the whole thing?

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