Britney Spears Bi-Sexual?

Failed rapper, Kevin Federline, 28, plans to air Britney Spears's dirty laundry in a steamy tell all book.

Kevin Federline is rumored to be penning the book for a quick buck, after Spears filed for divorce.

Kevin Federline will reveal that Pop Princess, Britney Spears regularly fantasized about women and was desperate to share one with him.

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A family source close to Federline said he was "prepared to reveal everything in court. "Britney has told him more than once she is sexually attracted to women and men equally. She has asked Kevin many times if they could have a threesome, the Sun quoted a source close to K-Fed.

Kevin Federline is also expected to claim Britney is guilty of a string of mishaps involving Sean Preston. Sources claim that he will do whatever it takes to reveal the hidden, dark side to Britney Spears. Fed Ex wants to write about his soon-to-be ex-wife's lesbian encounters, reported use of cocaine and marijuana and secret plastic surgeries.

He's also planning on making a laughing stock out of Britney, by attacking her deepest vulnerabilities and exposing her insecurities about her weight, acne and hair.

Last week, in a written statement lawyers for ex-hubby Kevin revealed there was no Britney Spears sex tape, after months of rumors.

He said: "There is not a sex video of Kevin and Britney in existence."

"It goes without saying that the stories of Kevin attempting to sell such a video are patently false and anyone who reports that they have information of such attempts is either lying or reporting the lie of someone else."