'Twilight' beauty Kristen Stewart seems keen to ditch her teen-star image as she has stripped off for the upcoming film Welcome to the Rileys, where she plays a young prostitute.

This will be the first time that the actress who is reportedly dating her co-star, heartthrob Robert Pattinson, is going naked in front of the cameras, reported New York Daily News.

The 19-year-old, who shot to fame with her role as Bella Swan in the vampire romance saga, has created a buzz with her decision to bare all for the cameras.

Stewart will be seen in the buff in many scenes of the film where she plays a 16-year-old sex worker, Mallory, who brings together an estranged couple played by James Gandolfini and Oscar nominee Melissa Leo.

After the release of 'Twilight', Kristen Stewart was awarded the MTV Movie Award for 'Best Female Performance' and will be reprising her role as Bella in the sequel, New Moon which is currently being filmed in Canada.