Kristen Stewart in "One the Road"
If you thought the sex scenes between Bella Swan and Edward Cullen in “The Twilight Saga” were risqué wait until you see what Kristen Stewart gets up to in “On the Road”.

Stewart reveals more than just skimpy lingerie in the new adaptation of Jack Kerouac’s novel and she’s even filmed taking part in a threesome with co-stars Garrett Hedlund and Sam Riley.

Speaking to MTV she said “I wasn’t scared, honestly…It’s kind of insane to watch now. 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.”

“On the Road” follows young drifters Dean Moriarty and his best friend Sal Paradise as the epitome of the Beat Generation. After Sal’s father dies, the duo embarks on a trip across America with Dean’s wife Marylou, a 16-year-old with an affinity for marijuana and sex.

Stewart said she had no problem playing the sexually promiscuous Marylou. She said “I have kind of no qualms about it either…I think people are a little uptight.”

Similarly speaking the Daily Star she said much of her “The Twilight Saga: Breaking Dawn” sex scene with boyfriend Robert Pattinson was edited out.

She said “It is a bit full on but it's edited. I see scenes and I think why is music playing over that, I was definitely making sounds and it could be so sexy and it's not. The ratings board breaks it down so technically and apparently, thrusting is a huge problem for the children.”

This May Stewart and Pattinson both have new movies premiering at Cannes Film Festival in the South of France. The starlet admitted there was a little healthy competition developing between them.

She said “It’s such weird timing. I think if it was us or them. I think we’d take the cake…I haven’t seen ‘Cosmopolis’ yet. I’m dying to see it. The first time I get to see it is actually in Cannes.”

When asked which move was better she said “Mine.”

Here’s the trailer for “One the Road”: