Hugh Hefner and his son Marston appear in at their joint birthday bash at the Palms Hotel and Casino in Las Vegas on April 9, 2011. / Marston Hefner and Claire Sinclair appear in a photo posted on her official Lockerz account on February 9, 2012. - Provided courtesy of Yfrog.com/h32k7dqj / Lockerz.com/s/182249142
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