talks about his famous exes, the future of his music and doing complete nude scenes in his new movie in the new issue of Vanity Fair.
"I can't say I'm going to be butt-naked in a movie again," says Justin about baring it all for his upcoming film with Mila Kunis, 'Friends with Benefits.' "I only did it because I'm young now, and everything's where it's supposed to be. I figured this is the time, before gravity gets the best of me."
Justin opens up about his relationships with such stars as Jessica Biel and Britney Spears, explaining why celebrities like to date one another: "We understand what it's like. 'Oh, thank God -- finally, somebody who knows how I feel.' It's refuge."
Justin calls recent ex
Jessica "the single-handedly most significant person in my life," and recalls of Britney, "We were two birds of the same feather -- small-town kids, doing the same thing. But then you become adults, and the way you were as kids doesn't make any sense." He adds, "I wish her the best -- that goes without saying. We haven't spoken in 9 or 10 years."
With 'Friends with Benefits' and 'Bad Teacher' out this summer, Justin seems quite content to focus on acting career right now, and says he has no new plans on the horizon for his music.
"I wouldn't say I'm not going to put out another [album]," he says. "I would say that would be a bad bet, if you were betting. But I could see myself only doing one more big tour."
The July issue of Vanity Fair hits newsstands in New York and L.A. on Thursday, June 2, and nationally and on the iPad on Tuesday, June 7.