The Hills star Lauren Conrad revealed to OK! magazine that she  is planning on writing a juicy tell-all book about certain young Hollywood social lites that are part of her social circle.

One of the people talked about is Laguna Beach star Kristin Cavallari.

“A chapter got leaked to Kristin,” a friend tells OK!. “It talks about her ‘sleeping around Laguna’ and stealing Stephen Colletti.”

Lauren is just talking about her reality tv co-stars in this book. She also reveals secrets about other young celebrities such as Nicole Richie and Paris Hilton.  Paris confronted Lauren on the matter, in which Lauren assured her that nothing was in the works.

“We all know she’s just trying to save face!” Paris’ friend tells OK!.