(Cover) - EN Showbiz - Natalie Portman cant wait to get fat during her pregnancy.

She blames her condition on Darren Aronofsky - the director of her film Black Swan - because he is the reason she met and fell in love with her choreographer and co-star Benjamin Millepied, whom she is now expecting her first child with.

Natalie had to lose 20lbs. to appear in the ballerina thriller, but the actress admits she will now be piling the weight back on.

I told Darren Aronofsky, I was like, 'First you got me skinny, and now you're getting me fat,' because he introduced me to my fianc," Natalie told Extra. "It's the greatest gift he ever gave me."

Benjamin is a French choreographer and the pair instantly hit it off on set.

As soon as they began shooting Black Swan, the cast knew it wouldnt be long until the couple got together.

"There was no way the attraction could be missed. I don't think he could help himself - she's dazzling!" a source told Usmagazine.com

The star is planning to take it easy during her pregnancy, but is still intending to appear at public events.

She is currently promoting her new film No Strings Attached, but admits she is getting more attention about her pregnancy, which she finds wild.

"It's very positive interactions, I have to say," Natalie told MTV News. "The weird thing is... people knowing something that is so private but, I mean, you get used to that. It's just wild to walk down the street and have a complete stranger be like, 'Congratulations!' It's so nice, but it's a new experience to have people know that much about your most private things. [But] it's all good." (C) Cover Media