Kristina Shannon and Karissa Shannon The Shannon twins celebrate their 21st Birthday at Vanity(00)

Kristina Shannon and Karissa Shannon The Shannon twins celebrate their 21st Birthday at Vanity(00)

Image gallery: Karrissa Shannon

Kristina Shannon and Karissa Shannon The Shannon twins celebrate their 21st Birthday at Vanity Karissa Shannon Makes Horrifying Allegation About Becoming Pregnant By Hugh Hefner Playboy Playmates Kristina and Karissa Shannon step out in LA after DUI charge Daily Mail Online