She famously stripped off for a sultry kissing scene in a Brazilian lake with ex-boyfriend Robert Pattinson in the fourth Twilight film Breaking Dawn: Part One.
And Kristen Stewart has just embarked on another risqué lake shoot – but this time with a woman.
The 23-year-old actress took off her trousers and T-shirt to reveal a black bra and white underwear to film a scene for forthcoming film Sils Maria in the Swiss mountains.
After getting her underwear wet, the star’s black thong was clearly visible through the white shorts as she strolled in the shallows.
However, Kristen’s French co-star Juliette Binoche happily went nude as she plunged into the chilly lake, confidently displaying her svelte figure.
The 49-year-old Oscar-winning actress seemed to have a greater tolerance for the temperature than her Californian-born co-star, with Kristen looking shocked as she took the plunge.
Men’s briefs? The star looked very much like she was wearing male underwear as she enjoyed a laugh on set
Not so see-through: A black thong protected Kristen’s modesty, showing through her underwear when her shorts became wet
Juliette was wearing her brown hair short and appeared to have no make-up on for the shoot.
Both stars initially filmed some short dialogue sitting together fully clothed by the lake before taking the plunge.
Shooting a movie in the chillier October temperatures clearly had an effect on Kristen – as she emerged from the water, a slew of assistants were on hand with a towel and turban for her dripping wet hair.
Svelte: The Twilight star looked a little less confident than the French actress, despite her not going nude for the scene
Ouch! Kristen is clearly more used to the warm California climate than the European autumn
Drying off: a menagerie of assistants held out a towel and turban for the actress’s dripping wet hair following her dip
Earlier Kristen arrived at the scenic set by bright yellow helicopter – looking low key in her costume – black trousers and zip-up top over a brown T-shirt and brown boots.
Sunglasses and a dark blue baseball cap completed her low key look.
Sils Maria sees Juliette play ageing actress Maria Enders who becomes fascinated by a younger star, played by Chloe Grace Moretz.
Reportedly an examination of middle age, the movie follows Maria’s reaction when Moretz’s character signs on to play the very same role which made the older actress famous.
Kristen, who has been busy filming the movie for a month, had expressed her trepidation at the prospect of filming with Juliette.
‘I play a personal assistant to an actress,’ she told WWD.
‘It takes two very particular people to have that relationship be functional – one that services the other – because Juliette Binoche is playing the actress that I assist, and she is one of the most powerful women I think I’ve ever seen in film.’
Specs appeal: Kristen wore black framed glasses as part of her character’s ensemble
Juliette famously beat veteran star Lauren Bacall to win the Best Supporting Actress Oscar for The English Patient back in 1997.
‘I’m going to try desperately to not be squashed by a woman like that, and it’s not going to be an easy thing,’ Kristen added to the website.
Sources recently said that the women have become good friends on set.
Read more: Daily Mail
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