Kevin Federline Threatens to Tell All

According to the American magazine Star, the dancer-turned-rapper is considering exposing some of the singer’s secrets. Federline would include details about his estranged wife’s drinking problem, drug use, and sexual attraction to other women.

A source revealed, "Kevin is either hoping a publisher will pay him big money for the book or that Britney will cough up more cash than what’s in their prenup to keep him from spilling the beans."

According to the couple’s pre-nuptial agreement, Federline could receive $360,000, as well as $7 million for the sale of their Malibu home.

According to the tabloid, Federline is also asking for sole custody of their two sons, and an additional $10 million.