On Sept 23, 2013, Kristen Stewart was back on set for "Sils Maria" where she was spotted shedding clothes and taking a dip! Filming a scene of "Sils Maria" at a lake in Switzerland, Kristen and her co-star Juliette Binoche shed their clothes and dove into the water.

Kristen has been working on the project and filming scenes in Berlin a few weeks ago. Prior to that, Kristen also bared all for a new Balenciaga fragrance campaign, called Florabotanica. This isn't the only time Kristen appaered nude because she undressed multiple times throughout the film adaptation of Jack Kerouac's "On the Road" directed by Walter Salles. In fact, in the film Kristen was involved in a threesome act which included masturbating with the two lead stars.

By now it is evident that Stewart is quite comfortable doing nude scenes and exploring new and challenging roles. The "Twilight" star said in an interview with MTV News that nude and sex scenes are "no big deal" for her and bragged that getting undressed for the film was something she wanted to do because she likes pushing and scaring herself.

"It didn't bother me. You can do no wrong with [Salles]. He puts so much inside of you. In the four-week rehearsal process, it was okay to ask any question, to bring up any story, to really overanalyze everything and intellectualize everything."

"Once we got on set, it was so about just breathing and letting it happen. He put so much trust in us," continued Stewart, adding, "So it was like, 'OK, so I have to take my clothes off?' It's so not a big [deal]."

If Stewart were still in her teens only then it might have been a big deal. The "Twilight" star was 17 years old when she first signed the project in 2007. Now she feels much more comfortable with such explicit subject matter as she is an adult and have the right to do such roles.

"I should have definitely been older than 17 while playing this part, absolutely," said Kristen, adding, "[My performance] would have been done very differently if I was younger. I wouldn't have played the part, obviously."

Stewart took up the role of Marylou, to fulfil her desire to explore the boldness of the world Kerouac wrote about in his novel.

"I don't want this to be misconstrued in anyway, but you do want to get as close to an experience as you can," said Stewart. "Anything that feels guarded, in this particular movie especially would just be so against the spirit of it." Stewart told MTV News at the Toronto International Film Festival.

While nude scenes are challenge for any actor, in the age of the Internet, these are also a short cut to publicity. A number of Web sites are hosting photos of the Stewart lying in bed wearing nothing but a smile.

Read more about Robert Pattinson and Kristen Stewart love story:

Robert Pattinson's Latest Interview: Why He Broke Up With Kristen Stewart [PHOTOS/VIDEOS] read HERE!

Robsten Affair: Is Robert Pattinson still obsessed with Kristen Stewart? Read Full article HERE!

Robert Pattinson and Kristen Stewart apparently 'Can't Live Without' Each Other [PHOTOS / VIDEOS] read Full article HERE!

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