Kristina and Karissa Shannon (born October 2, the Shannon twins moved out of the mansion, Celebrity Big Brother in which they came 5th. Mar 07, · Karissa and Kristina Shannon. The Shannon Twins. Blonde hair, blue eyes, nearly six feet! And they have a propensity to shake their backsides during their in. GETTY. BOMBSHELLS: The Shannon twins dated Playboy's Hugh Hefner. But four years after the duo entered the Celebrity Big Brother house, .