That's the nicest backside we've seen all day—well, besides this one.
Actress Natalie Portman reminds the world that she is breathtakingly gorgeous by stripping down to her birthday suit in her latest Christian Dior beauty ad for the new Rouge Dior Nude Lipcolor.
Stop staring, it's rude.
Portman played the fine line of sexy and classy (kudos) by going topless but only baring her back to the camera while giving us that face.
And if this isn't risqué enough for you, let's remember that she is a wife and mother now—thank you.
"I chose the color Grège because it's the one I'd pick to wear myself," she said in a statement. "The number  contains different dates that are important to me and my family."
The beautiful Oscar-winner is no stranger to popping her top off for Dior. In January 2011, Portman got sultry for a perfume ad for Miss Dior Chérie.
Are you in love with this new promo or what? Let us know in the comments!