A post "Celebrity Fit Club" Kevin Federline has come out swinging ... and thinner.
The 32-year-old father of four played golf in L.A. on Friday, looking much fitter than he did back in July of last year.
It's only been eight months, but K-Fed has already lost all the baby weight.
K-Fed Loses Custody ... of His Belly
3/28/2010 2:15 AM PDT BY TMZ STAFF
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