Jessica Simpson is one hot mama!

The mother-of-two is showing off her fit figure in a new Weight Watchers ad, showing off her slim post-baby bod in a tight white dress.

The weight loss program shared a photo of the 33-year-old on Instagram, writing, "The #powerofsupport is one reason Ambassador @JessicaSimpson loves attending Weight Watchers meeting."

In the commercial, the blonde beauty says she has "a newfound determination that I'm really proud of." "I can honestly say that I've never been happier," she adds.


So, what's Simpson's secret to staying slim?

"For breakfast I am an oatmeal girl," she recently told "Good Morning America." "Lunch, I do like bread so I will have a sandwich or something. But for dinner I try (to) keep it super clean."

Her diet plan is clearly paying off!

What do you think of her new Weight Watchers commercial? Tell toofab in the comment section below, and click "Launch Gallery" above to see her most eye-popping looks.

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