Kristina and Karissa Shannon (born October 2, 1989) are American Playboy Playmates, porn stars and twin sisters.

Despite their "girlfriend" status, Karissa said the relationship she and Kristina shared with Hefner was more for fun and the opportunity to be on the show, rather than romance.

[5] In 2010, Karissa Shannon attracted some publicity by confirming she had been involved in sex tapes with Spencer Pratt and Heidi Montag.

[6][7] One sex tape of her and boyfriend actor Sam Jones III was released on DVD by Vivid Entertainment in October 2010 as Karissa Shannon Superstar.

[9][10] On January 5, 2012, the twins participated in the ninth series of the UK reality show, Celebrity Big Brother in which they came fifth.