Natalie Portman may be a mom and a wife now, but she's also still one of the hottest leading ladies in Hollywood -- and it definitely shows in her latest ad for Christian Dior!

In the photo, Natalie strips down and shows off her bare back, while focusing on the camera with a sexy and sultry facial expression. Keeping it classy AND hot? This girl can do no wrong!

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The ad is specifically for the brand's Rogue Dior Nude Lipcolor, which is one Natalie says she specifically chose to shoot. "I chose the color Grege because it's the one I'd pick to wear myself," she explains in a statement.

The Academy Award winner has had some sexy Dior ads in the past, so this one goes right up there with 'em! Props, girl!