Kevin Federline Claims Britney Spears Cheated With Dancer

Kevin Federline alleges that Britney Spears cheated on him with a female dancer early in their relationship. The claims are contained in his upcoming book.

In an excerpt from the book "You Thought You Knew," Federline describes an incident in Amsterdam in 2004, during Spears' "Onyx Hotel Tour." Federline claims he saw Spears and dancer Teresa Espinosa kissing.

Federline and Spears met in April 2004 and married in September of the same year. They have two children, Sean Preston and Jayden James. Spears filed for divorce two months after the birth of their second child.

Federline announced the release of his book, which focuses on his relationship with the pop star, amid an apparent reconciliation between Spears and her children.