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Jessica Simpson, Weight Watchers BTS

Kristin Burns

Jessica Simpson's worked hard to shed those pregnancy pounds and get in shape, so you better believe she's going to celebrate her hot bod!

The 33-year-old mom of two Instagrammed a picture of her svelte figure in a curve-hugging dress Tuesday. "My dress is soooo wrinkled! I tried the shower steam thing...totally didn't work!" she wrote. "Haha!...but...My workouts have!"

"I'm proud to walk with these gams!" she said, referencing her toned legs. "Gets your steps in!!! Anyone can do it! #weightwatchers."

Eric Johnson, Ace, Instagram

Instagram

Jessica's kids—especially her 22-month-old daughter, Maxwell—have been a big part in helping her drop the baby weight. In fact, a source tells E! News that the singer's favorite form of cardio is running around after her mini-me and playing with Maxwell on the backyard swings. She also likes taking walks around her hilly L.A.-area neighborhood and uses a pedometer to keep track of her steps.

The fashion mogul and fiancé Eric Johnson also stay active taking care of their 8-month-old son, Ace. Jess Instagrammed a sweet pic of "My men at the playground" Thursday, showing the father-son duo mugging for a jungle gym selfie.

Crazy successful career, hot bod, hot (future) hubby and gorgeous kids? Check! J.Simp's living the dream, y'all!