"Twilight" is something for kids - The star Kristen Stewart is moving to a more adult genre of film.

Stewart, 19, who plays the heroine Bella in "Twilight" vampire movie saga, who is fascinated by the under-18 set, appears nude in her new independent film, "Welcome to Riley," New York Daily News.

Stewart, star of the film with former "Sopranos" James Gandolfini mob boss will play a 16-year-old prostitute stripper, and the press - and by character, Mallory, will be several scenes in the buff.

"It's an independent film that no one would normally, and now it's like, 'Oh, let's see Bella stripper in the movie - to be crazy,'" said Stewart.

Stewart will play Joan Jett in "Runaways" and that has a contract to star in two more films in the series "Twilight".