Natalie Portman, the star of Golden Globe nominated movie Black Swan, posed topless for a Miss Dior Cherie perfume ad. Portman was named the new face of Parfums Christian Dior on December 9, 2010.
Portman recently announced her engagement to Benjamin Millepied and the baby they are expecting together. It appears the photo for this ad was taken prior to the baby bump.
Rated-R poses are nothing new for the 29-year-old actress. Portman played a stripper in Closer, had a lesbian love scene with Mila Kunis in Black Swan, and plenty of sex scenes with Ashton Kutcher in No Strings Attached.