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On Tuesday evening Jessica Simpson went to dinner with beau Eric Johnson and their adorable daughter Maxwell at Sagebrush in Calabasas, and the proud parents may have left their three-month-old son Ace at home, but Jess definitely busted out the twins:

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"With two kids, we have our hands full, but every day is a new adventure," Jess told Us Weekly last month when she showed off the first photos of Ace in the glossy. "It's fun! I feel very at peace with being a mom."

It looks like she's also had plenty of time to hit the gym -- she's definitely well on her way to getting her pre-baby body back!