Jillian Michaels was on stroller patrol over the weekend!

The personal trainer and her partner Heidi Rhoades took turns pushing their kids -- daughter Lukensia and son Phoenix -- around Malibu. Lu's adoption was finalized in May, the same week Heidi gave birth to Phoenix, causing their household to double in size! Check out the adorable family photos below:

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Although the new mom told People that she wanted to "enjoy all the nuances" of her kids' growth, she's heading back to work! She'll be returning to the show that made her famous, "The Biggest Loser," for a special season that will feature teen participants alongside adult ones.

 "As a former overweight teen, I know firsthand how dramatically weight issues can affect every aspect of a child’s life," Jillian said in the press release, drawing from her own past. "Having recently become a mother of two, I am more passionate than ever about helping empower children and families with the information and resources they need to live a healthier life."

Jillian and the other trainers -- including Bob Harper and Dolvett Quince -- will treat the teens positively and with sensitivity. While they will contribute to their team challenges, they will not be weighed for the broadcast or eliminated.

The new season of "The Biggest Loser" premieres in January. What do you think of the teen twist? Tell toofab in the comments below!

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