It looks like the Kardashians have something really troubling to worry about here. There's a new report that suggests Caitlyn Jenner--who was formerly known as Bruce Jenner--is ready to dish some major dirt on her family in a new tell-all book. And apparently it has her ex-wife Kris Jenner seriously worried.

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According to Naughty Gossip on Monday, the transgender star is ready to spill the beans on her famous family, which includes her daughters Kendall and Kylie Jenner along with her step-daughters Kim, Kourtney and Khloe Kardashian. Sources close to the reality star say that Caitlyn is doing this to get even with Kris.

A source dished, "Kris was relentless. She put Bruce through hell. If you think Kris was humiliated by the Vanity Fair piece, just wait--this book will delve far deeper into every aspect of her life. There will be plenty of humiliating stories that will destroy Kris."

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And while Kris herself hasn't made any comments about the book just yet, friends close to the Kardashian family say that Caitlyn has her already shaking in her boots.

The insider added, "Caitlyn is going to talk about how Kris knew that Bruce wanted to be a woman his entire life. Kris can say all she wants that the transition came as a shock, but she and the kids knew Bruce's secret even if they didn't know how to define it, and Caitlyn is going to outline all the conversations that she had with Kris about this."

Keep up with Enstars for all the latest news on Caitlyn Jenner and the entire Kardashian family right here.

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