07/03/2012 03:49 GMT | Updated 07/03/2012 09:36 GMT

Bel Ami: Robert Pattinson And Christina Ricci Shared 'Silly' Sex Scenes

Christina Ricci has revealed she didn't feel awkward rolling around naked with Robert Pattinson in their new film, as they both made a joke about it.

The 32-year-old actress stars in Bel Ami as Clotilde, a Parisian wife and mother who becomes the lover of young, irresistible social climber Georges Duroy (R-Patz), and she and the Twilight star spend much of the film naked in bed together.

Christina said: "We joked around all the time, made fun of each other and laughed on set. And any time we had to do anything uncomfortable, we would immediately joke about how ridiculous this was and just be silly. It was great."

She added of her heartthrob co-star: "He's absolutely lovely. We had the best time together and a lovely rapport."

The Addams Family star has been acting since she was nine and insisted she has no problem being naked on camera.

"It's part of the job. If both the movie and the scene calls for it, and it makes sense, then it's just part of what we do," she said.

When she is dressed in the film, Christina is laced into heavily corsetted dresses.

But she said: "I actually love wearing corsets. Even though they're uncomfortable. I still love wearing them."

:: Bel Ami is released in cinemas on Friday, March 9.