Jessica Biel reveals that she used to audition topless women vying for the job of portraying her breasts on the big screen.

Four years ago the Hollywood actress had a strict no-nudity clause added to her film contracts.

So whenever a part called for a naked boob or bum shot, she got to choose her own breast stunt double – hence the line of ladies in just thongs.

"That was a weird experience," Jessica tells Allure.

Jessica is currently revealing nearly all as a single mother-turned-stripper in new movie Powder Blue, which is currently winging its way straight to a DVD near you.

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