In "Friends With Benefits," Mila Kunis and her co-star Justin Timberlake share some screen time wearing nothing more than their birthday suits. Is it challenging to be funny while naked? According to Kunis, it's not even that simple.

"It’s hard to be funny in general," Kunis proclaims in the new issue of GQ. "I think I have a good sense of humor, but I’m not, like, a joke-teller. I get the jokes, which is sometimes half the battle. Believe me, I have no idea why anyone hires me."

Kunis also talks about whether her own life imitates art: has she ever been in a friends with benefits-like situation? Short answer: no. "Oy. I haven’t, but I can give you my stance on it: It’s like communism -- good in theory, in execution it fails. Friends of mine have done it, and it never ends well. Why do people put themselves through that torture?"

Kunis goes on to say that eventually, someone falls in love. "But friends with benefits isn’t a purely sexual relationship -- it’s two people who like each other having sex, not a random hookup. And when two people who like each other have sex, eventually someone catches feelings and everything is f---ed," she said. "You might be able to treat our relationship as killing time. I might not. I may be in love with you."

Also, check out Kunis and Timberlake chatting with Access Hollywood about their new flick:

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