Justin Timberlake's new movie, Friends With Benefits sees him star opposite the gorgeous Mila Kunis and act out several sex scenes.
And the musician turned actor has revealed that he enjoys watching sex scenes and porn because he's 'a guy'.
In the interview with Now magazine, Justin admitted: "I love watching sex. I'm a guy, so I like porn and sex scenes!"
Of getting naked with Mila, Justin said: "I am nude in the movie, but I think it was tastefully done and we're always covered up. I thought that it would make the situation more real.
"I am probably not going to be as game to show my ass when I'm 40, so I'll probably do it now while I have less time to think about it!"
We'd be quite happy for Justin to get his kecks off at 40!
Mila and JT on set...




























