An R rating for nudity accompanies plenty of movies – especially around Oscar time. Celebrities like Anne Hathaway, Kate Winslet, Halle Berry and even the Queen of Proper herself, Gwyneth Paltrow, have bared it all for the sake of a great role — and sometimes a shiny award statue to go with it!
While it's no surprise that these celebrities have gotten in character by getting naked, and others have stripped down for the sake of fame itself (Kim Kardashian, anyone?), the list of celebrities who won't go au natural is a bit more shocking. Those sexy celebrity bodies that appear on screen may, in fact, belong to sexy celebrity body doubles.
Scroll through the gallery to find out which of Hollywood's sexiest starlets employ a "just say no" policy when it comes to getting naked in front of the camera.
Jessica Simpson

Even if a "frickin" Oscar is on the line, actress and country singer Jessica Simpson won't take a role that requires her to disrobe. "I will never do nudity. I don’t care how dark and intellectual the role could be, you know. I don’t care if I frickin‘ could get an Oscar for it, I’m not going to do it," says the mom of two.
Anna Kendrick

The Pitch Perfect 2 star may have had her own personal nude photos leaked earlier this year, but Anna Kendrick stays covered up on the big screen. "I am not criticizing people who do [nude scenes], but I plan to keep doing what I am doing and hope it keeps going good," she says.
Megan Fox

It may come as a shock, but sexy Transformers star Megan Fox won't be taking on naked sex scenes in any of her films. "It would take one shot of me not looking good, and I would not be able to have sex ever again, because I would always just see myself looking like a hippo having sex," says the self-conscious actress.
Sarah Jessica Parker

Even in her Sex and the City days, Sarah Jessica Parker wore more than just her Manolos onscreen. The 49-year-old actress shies away from taking any work that will embarrass any of her family members – which includes going naked for the camera.
Mila Kunis

The character Mila Kunis played in Forgetting Sarah Marshall may have a photos of her boobs front and center at the local bar, but the actress used a body double for the shot. I showed side boob. I don’t need to show a**. You get one or the other. You don’t get both," says the new mom.
Julia Roberts

No kissing on the lips was the rule for her famed Pretty Woman character, and no nude scenes is the rule for actress Julia Roberts. The explanation is simple: "It's just not my thing," she says.
Cameron Diaz

Cameron Diaz often flaunts her legs-for-days on the red carpet, but that's where it stops. The Annie actress won't bare the rest onscreen, stating, "It has nothing to do with other people, it’s just what I’m comfortable with.”
Blake Lively

Blake Lively can barely handle other people's onscreen nudity, let alone her own! The Gossip Girl star and Preserve blogger doubts she'll ever go naked for a role, and says, "I know that if I am watching a scene and someone has their boobs out, then that's all I'm looking at – I can't help it. I just don't think that will ever be right for me."
Scarlett Johansson

Recently named on of Barbara Walters Most Fascinating People in 2014, Scarlett Johansson manages to intrigue with her clothes on. The sexy starlet has had a no nudity clause in her film contracts since she was 22.
Jessica Alba

Actress and Honest Company founder Jessica Alba's stance on onscreen nudity is clear. “I don’t do nudity. I just don’t. Maybe that makes me a bad actress," she says.