Karissa Shannon in attendance for Karissa & Kristina Shannon's Birthday Party at Vanity(02)

Karissa Shannon in attendance for Karissa & Kristina Shannon's Birthday Party at Vanity(02)

Image gallery: Karissa & Kristina Shannon

Karissa and Kristina Shannon Pose for Playboy Kristina Shannon and Karissa Shannon The Shannon twins celebrate their 21st Birthday at Vanity Karissa Shannon in attendance for Karissa & Kristina Shannon's Birthday Party at Vanity