Pippa Middleton Flaunts Hot Bikini Body

USMagazine, Monday, May 9, 2011, 6:18am (PDT)

What happens in Ibiza doesn't always stay in Ibiza.

Suddenly world-famous royal bridesmaid Pippa Middleton caused a web sensation last week with the release of an old photo in which Duchess Kate's sister, 27, danced in a bra with a half-naked male pal.

PHOTOS: Pippa's awesome style

That pic was nothing compared to just-released 2006 photos of the stylish socialite and entrepreneur partying on a yacht in Ibiza with her famous sister, 29, and future brother-in-law Prince William, 28.

Pippa and Kate wore nearly matching white bikinis -- and rocked similarly fit bods -- as they lounged aboard a sun-soaked yacht with a privilege group of pals.

PHOTOS: Pippa and Kate as adorable little girls

In one shot, Pippa showed off her prowess in the water -- doing a backwards dive into the sea! Despite her new status as a global sex symbol, Pippa is way more than a pretty face.

In summer 2010, she launched The Party Times, an online party mag, and is an ambassador for Too Many Women, a charity which raises funds for breast cancer research.

PHOTOS: All the talked-about royal wedding attendees

Named the number 1 Society Singleton in a 2008 list by Tatler magazine, but is currently dating London cricketeer Alex Loudon, 20.

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