Britney Spears is fearing the worst after it was reported that her ex-husband Kevin Federline will spill all details about her in his upcoming memoir.

Journalist Daphne Barak claimed, via Radar Online, that the backup dancer intends to write about his experience as a father of two and share it with the princess of pop, according to Radar Online.

The worst part is that Jamie, Britney's father, is rumored to have agreed to assist Kevin with the endeavor.

To discredit the "Baby One More Time" hitmaker, Kevin and Jamie apparently got back on speaking terms.

According to a source, Kevin just declined millions of dollars in order to publish a book on his relationship with Britney. The non-disclosure agreement he signed as part of the divorce settlement and child support, however, prevented him from ever publishing or leaking information about what happened during his marriage to the singer of "Sometimes."

However, the non-disclosure agreement will end formally when their boys Sean Preston, 17, and Jayden, 16, reach 18.

"Once that happens, Kevin is free to divulge all - and he knows everything," the insider claimed.

Parenting their two children has been a point of contention between Kevin and Britney. He even shared old recordings of the "Womanizer" hitmaker yelling at her two boys in the car on Instagram to criticize his ex-parenting wife's abilities.

He said in the open a few months ago that Sean and Jayden hadn't seen their mother in months.

Kevin has also previously discussed Jamie's conservatorship of Britney Spears, which was just ended. It was "hard to witness, harder to live through, and worse to watch my boys go through than anything else," he said of the experience.

In addition to the much anticipated book, Jamie Spears has also spoken out about his daughter and the circumstances under which he was compelled to place her under conservatorship.

Jamie told the Daily Mail that if the formal guardianship hadn't been established 13 years ago, "I don't know if she'd be alive."

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Since the controversial conservatorship ended, Britney has claimed that her father mistreated her when he was in charge for years. She even claimed that he hired a security firm to monitor her messages and phone conversations.

Jamie also said he was responsible for saving his daughter at her lowest.

"For protecting her, and also protecting the kids, conservatorship was a great tool. Without it, I don't think she would have got the kids back."

It is recommended to take Radar Online's allegation with a grain of salt since fans should still wait for any announcement regarding a book that Kevin Federline will write.

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