The Sunday Telegraph IT is hard to believe a woman as stunning as Mila Kunis would be worried about baring all on camera. She is after all no stranger to getting intimate on screen - she had a series of passionate embraces with Natalie Portman in the highly acclaimed movie Black Swan.
But the brunette beauty says it took her four months before she felt comfortable to do sex scenes with co-star Justin Timberlake, 30, for their new film, Friends With Benefits.
It took four months to build up a comfortable enough level where we could do that. Being fake intimate with someone is just weird. I'm not great at it but I'm getting better. I think it's really sweet, I really do. And despite their on-screen chemistry, Kunis denies any romance with Timberlake. I think we both got very lucky that we both understood each other and got each other's humour.
The whole shoot was fun. I would class Justin as one of my closest friends now. We got along really well and have the same opinions on things, but we are just friends.
She had dated child star Macaulay Culkin but the couple split in January after an eight-year romance. I like to travel so that is something I would like to take more time to do. In fact, she has agreed to accompany one lucky soldier to his Marine Corps Ball after he plucked up the courage to ask her via YouTube.
I was never not going, I am true to my word and I will be there on November One of the funniest scenes in the movie is when her mother, played by Patricia Clarkson, walks in on her character Jamie having sex with Dylan, played by Timberlake.
Luckily Kunis has never had this experience. Can you imagine it? Uh-uh, no way, never. And in case my mom or dad are reading this, I don't have sex. It is a funny movie with a little romance. It is very much the truth.
The chances are you don't have that fairytale of a romance, I think this is a very organic version of how two people meet. Kunis has previously said he walked out of her sex scene with Natalie Portman in Black Swan.