Kourtney Kardashian Rocks Hot Body in Skimpy Workout Gear

Celebrity Body Mar. 18, 2011 AT 3:08PM
Kourtney Kardashian Rocks Hot Body in Skimpy Workout Gear Credit: Matthew Symons/Coleman-Rayner

Work it out, Kourtney!

Kourtney Kardashian was looking more fit and toned than ever in micro-mini shorts and a sports bra top in Malibu on Thursday.

EXCLUSIVE PHOTOS: Check out more pics from her sexy workout

In photos exclusive to UsMagazine.com, the reality star and mom, 31, showed off her gym-perfected bod -- jogging and doing step-ups beachside -- as she shot pics for a fitness book.

The Kourtney and Kim Take New York star welcomed Mason Dash Disick, her son with beau Scott Disick, in December 2009 -- and stunned fans with her incredible post-baby bod the following summer.

PHOTOS: Jaw-dropping post baby bods

How'd she do it, besides those workouts?

"Definitely breastfeeding helps," she told Us last year. "Everyone says that, but it's really true -- and it's just being a busy mom."

PHOTOS: Kourtney's wild pregnancy

And motherhood never stopped her from feeling sexy, she told Us. "It brings out a whole new glow or something!"

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