Kristen Stewart has opened up about her sex scenes in “On the Road,” which has just opened in limited release.

"To be honest, I think if you were to isolate the scenes, it’s fairly ridiculous watching yourself fake have sex," Stewart told IndieWire, according to the Huffington Post.

“But within the movie, watching the movie, I do get so caught up in this one. I’ve seen it three times, and that’s not typical for me. I have to complete the process; I need to watch the movie at the end of it."

Stewart also talked in October about her nude scenes in the film, claiming she did not even get nervous preparing for them. 

“It didn't bother me,” Stewart told MTV News at the Toronto International Film Festival.

In one scene, Stewart, playing Marylou, a 16-year-old bride, is on a bed with her body exposed. She is also in a topless scene while riding in a car with her co-stars Sam Riley amd Garrett Hedlund and simulating sexual acts. 

“You can do no wrong" with director Walter Salles, Stewart says. "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.

"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],” Stewart added.

The film is set in the 1940s and the cast of "On the Road" also includes Amy Adams, Viggo Mortensen, Kirsten Dunst, Steve Buscemi, Terrence Howard and Elisabeth Moss.