Body Check! Celebrities Getting Their Workout On (PHOTOS)

Season 7 Bachelorette Ashley Hebert, reality star/former Hugh Hefner girlfriend Kendra Wilkinson, and Atlanta Housewife Sheree Whitfield box it out to keep in tip-top shape. Sheree and Kendra are probably the only ones who could actually deliver a KO, though; pint-sized Ash was merely a spectator in her season's Muay Thai challenge.