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Recognize the Reveler

Courtesy of Denise Truscello/Getty Images

This onetime reality star was never shy about running around nearly naked on her hit show, so it's not surprising she hit a Vegas party in this teensy ensemble.

There was even a (sorta) valid reason behind her intergalatic getup: She was hosting Svedka Vodka's Playboy Club 2033, a futuristic fete.

Think you know who's showing skin at her space-age soiree? Find out after the jump...

Bridget Marquardt

Courtesy of Denise Truscello/Getty Images

It's Bridget Marquardt, former Girl Next Door, at Moon nightclub in the Palms, who was joined at the Sin City party by her new boyfriend, Nicholas Carpenter (not pictured).

Quick catch-up: Former Mansion roomie Holly Madison is also in Vegas, starring in the Peep Show and in her E! spinoff, Holly's World, while Kendra Wilkinson-Baskett is busy moving back to L.A., being a new mom and wife and taping it all for her self-titled E! series.

Say what you will about these ladies, they don't sit still!

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See more stars in Sin City in our Party Pics: Vegas gallery!