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Pippa Middleton's Sizzling Summer Workouts
That famous behind doesn't come easy. From leisurely jogs to full-on triathlons, see how the Duchess of Cambridge's kid sister stays fit
Credit: Eliot Press/Bauer-Griffin
Updated: Thursday Sep 01, 2011 | 06:00 AM EDT By: Alex Apatoff
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Pippa even stays active in her leisure time, joining former beau George Percy for a boat ride in Madrid. Grabbing the oars and rowing is a great upper-arm workout for the slim star.

