Life & Style has obtained the script for the Kristen Stewart's steamy new movie, On the Road, based on the Jack Kerouac novel. Her character, 16-year-old Marylou, has a threesome with a couple of hotties, asks to watch two people have sex and brags about loving to perform oral sex.

Why the shocking change of pace? "Many actors who are entering adulthood want to make their own mark and stop being seen as bubblegum, cookiecutter teen stars," Ryan Schinman, media expert and CEO of the talent-branding agency Platinum Rye Entertainment, tells Life & Style. "Kristen likely wants to be taken more seriously as an actress -- and show she's not afraid to break out of the mold."

Credit: Fame