Kristen Stewart, who strips down while sitting in a car while playing Marylou in Jack Kerouac’s adaptation of On the Road, has brushed off the task as “not a big deal”. The 22-year-old strips down while sitting next to Garrett Hedlund and English actor Sam Riley. Not only does the Twilight star strip down for the role of a 16-year-old bride, but simulates a certain sexual act with the two men with her hands in the car.

But the star said the racy scenes came quite naturally.

“It didn’t bother me,” the Daily Mail quoted her as telling MTV News at the Toronto International Film Festival.

The entire cast reportedly underwent a three-week beatnik boot camp for the film, led by Kerouac biographer Gerald Nicosia, in which they read literature pertaining to the Beat Generation.

“You can do no wrong with [director Walter 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 over-analyze everything and intellectualize everything,” she said.

“Once we got on set, it was so about just breathing and letting it happen. He put so much trust in us, so it was like, “Okay, so I have to take my clothes off?” It’s so not a big [deal],” she added.

The Adventureland star was only 17-years-old when she accepted the role.

On the Road is based on the years Kerouac spent travelling the United States in the 1940s with his friend Neal Cassady and several other figures who would go on to fame in their own right, including William S. Burroughs and Allen Ginsberg.