Actress Rachel Bilson refused to strip off for raunchy scenes in new movie The Last Kiss, forcing studio bosses to call in a body double.

The 24-year-old star of hit TV show The OC baulked at the steamy scenes with Scrubs star Zach Braff, and even though she was keen to impress in her big-screen debut, she stood her ground.

She says, "It's not normal to make out with a guy in front of the camera. you can't think about it too much or you might get too nervous and Lord knows what would happen.

"I said no. I feel really strong about that."