Leah Messer is burning off those Thanksgiving calories. The "Teen Mom 2" star showed off one impressive workout body on Instagram today, with her weekend post following homey kitchen shots with daughters Adalynn, Aliannah, and Aleeah. Leah, followed by 2.3 million, had already teased her snazzy mesh sports bra look, but fans hadn't yet seen Leah put the sportswear to good use. On Sunday, Leah updated with a collage of outdoor stretches, even including some motivational quotes. Check it out below.