Scarlett Johansson declared she finds monogamy unnatural.
The voluptuous actress also questioned the romances between actors.

She said: "I don't think human beings are monogamous by nature. It's difficult - you have to put a lot of effort into a relationship.
I think it's hard for actors to date each other because they are so damn moody. You are away from people constantly and having a relationship that is strictly by phone, it is miserable.
Or if you say to him/her, 'Hey, (even though) I am doing a very sexy scene with this very sexy girl/boy, I love you and I'm going to be thinking of you when I am rolling around in bed with this person!'"

Despite that, Scarlett is reportedly moving in with boyfriend Josh Hartnett, in his New York apartment.
The two met on the set of "The Black Dahlia" in April this year.
In August there were rumors that she was begging him to move in with her, as she was desperate to settle down.