Kristina and Karissa Shannon

Kristina and Karissa Shannon (born October 2, 1989 in Ann Arbor, Michigan) are American twin sisters that works as glamour models. That have been "Playboy" Playmates working for "Playboy" founder and owner Hugh Hefner. They also appeared on Hefner's television series "The Girls Next Door".
They were housemates in Celebrity Big Brother (UK) in 2012.