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Crystal Hefner is the hostess with the mostess

Crystal Hefner is the hostess with the mostess

Crystal Hefner proved she really knows how to throw a party as she hosted and DJ'd at her Rehab Bikini Invitational at Hard Rock Hotel on Monday (15.06.15). The Playboy Bunny model wore a super tight body-con silver dress, revealing her ample cleavage and wore her thick blonde head of hair loose and curled.