The Playboy Twins, also known as the Shannon Twins, are a pair of American television personalities and models, who gained fame for appearing on the reality TV show "The Girls Next Door." The show, which aired on E! from 2005 to 2010, followed the lives of Hugh Hefner and his girlfriends, including the Shannon Twins.The Shannon Twins, Karissa and Kristina, were born on October 2, 1989, in Anna Maria Island, Florida. They began their career as models, and in 2008 they were chosen to be part of Hefner's "girlfriends." They lived with Hefner at the Playboy Mansion and appeared in several episodes of the show, which showcased their lives and relationships with the other girlfriends and Hefner.After the show ended, the Shannon Twins continued to model and pursue acting careers. They have appeared in several films and television shows, including "The Hills," "Celebrity Big Brother UK," and "Celebrity Rehab with Dr. Drew." They have also appeared in music videos for various artists, including Snoop Dogg and LMFAO.In recent years, the Shannon Twins have been less active in the public eye. They have not appeared in any major films or television shows. They have been focusing on their personal lives, and have been spotted occasionally at events and parties in Los Angeles.In conclusion, The Playboy Twins, also known as the Shannon Twins, are a pair of American television personalities and models, who gained fame for appearing on the reality TV show "The Girls Next Door." They were Hugh Hefner's Girlfriends and lived in the Playboy Mansion. After the show ended, they continued to model and pursue acting careers but in recent years they have been less active in the public eye and are focusing on their personal lives.