Kristen Stewart Has Steamy Threesome With Sam Riley and Garrett Hedlund in New ‘On the Road’ Trailer (VIDEO)

By: Gabrielle Chung / September 1, 2012

'On The Road' Stills
Scenes from the new Jack Kerouac adaptation.
Robsten on Sex
Robert Pattinson and Kristen Stewart talk sex scenes.
Robert Pattinson may want to look away for this one.

A new On The Road trailer has been released and — for the first time — the much talked-about threesome between Kristen Stewart, Sam Riley and Garrett Hedlund’s characters is shown.

In the steamy teaser, Stewart is passionately kissing Riley as Hedlund watches beside her in bed.

What does the 22-year-old starlet think of the racy bit?

“It’s kind of insane to watch now,” Stewart told MTV of the sex scene. “I’m like, ‘Who is that?’ But I think – as every actress says when they do this is – it just felt so right. It was so within a different world and so within a different environment that I don’t even really feel — I mean, I am personally connected to it, of course — but it is something outside of myself.”

The risque role, which also has Stewart tackling her first topless scene, is a far cry from her innocent and naive Twilight character, Bella. The actress wraps up her work in the famous movie franchise with the release of The Twilight Saga: Breaking Dawn – Part 2 this November.

Also starring Kirsten Dunst and Amy Adams, On The Road tells the story of aspiring writer Sal Paradise (Riley) and ex-con Dean Moriarty (Hedlund) as they embark on road trip in search for freedom and adventure. Stewart plays Marylou, the sensual 16-year-old wife of Hedlund’s character, in the film adaptation of Jack Kerouac’s novel of the same name.

What do you think of Kristen’s new role? Sound off below.