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Stars Play the Field!
Kim Kardashian! Jonas Brothers! Reese! See who's coming out swinging – and scoring a workout. By Serena Kappes
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REESE WITHERSPOON
The actress, who's logged hundreds of hours of practice for her role as a pro softball player in the comedy How Do You Know?, keeps her training going in L.A. It's paid off: She's not only worked up a mean pitch, but in one hour of throwing the ball, she could have burned more than 350 calories – that's the equivalent of half a McDonald's Big Mac!
