Kim Kardashian might need to watch out for her sister Khloe Kardashian. Khloe looks set to steal the crown for best Kardashian booty.The star gave onlookers a SERIOUS eyeful as she left the gym yesterday afternoon in Los Angeles.Khloe flashed her unbelievable bum in a pair of skin-tight leggings that clung to her curves in all the right places.
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