Jessica Simpson Wears Sexy Black Dress for Weight Watchers Ad—See the Pic!

33-year-old added the snapshot to her Instagram account on Saturday

By Jordana Ossad Feb 08, 2014 7:59 PMTags

Jessica Simpson deserves to be proud of her post-baby body.

The 33-year-old blond beauty shared a sneak peek for her latest Weight Watchers ad on her Instagram account. And no surprise here—she looks absolutely stunning in the sleek frock.

"Too proud to sit down!! Behind the scenes of my new commercial. Thanks @weightwatchers." the mother of two captioned the black and white snapshot on Saturday.

The fashion mogul stands confidently with her hands on her waist in front of her personalized director's chair. She is flaunting her enviable curves in an above-the-knee formfitting halter dress and her wavy long locks are swept to one side.

During an appearance on Good Morning America last month, Eric Johnson's ladylove talked about how the weight loss program helped her to shed those pregnancy pounds—twice!

"I believe in it with all of my heart," she told GMA lifestyle anchor Lara Spencer. "It's a lifestyle. I've tried so many different diets, and you can only stick to something for so long. I feel like with Weight Watchers, it just becomes a part of who you are."

Maxwell and Ace Knute's mama has not been shy about showing off the results of the program. She donned a strapless white retro-inspired swimsuit for her Spring 2014 Jessica Simpson Collection ad campaign, as well as another sexy LBD.