Singer Ray J is stating in his book that Kim Kardashian cheated on her first husband with him. He only refers to her as KK in the book but it is apparent that he is talking about Kim. The book “Death of a Cheating Man: What Every Woman Must Know About Men Who Stray” says that things got really intense between him and Kim once they started having sex and that is when she left her ex, Damon Thomas, whom she was married to from 2000 to 2004. Kim has not denied or confirmed that any of this is true. Ray J says that Kim was a very jealous person and that is why their relationship ended.