A new tell-all book written by Ian Halperin claims that Kris Jenner leaked Kim Kardashian’s infamous 2003 sex tape with Ray J.

According to US Weekly, Halperin quotes a source who works in the adult industry in the book, Kardashian Dynasty, which was excerpted by Page Six on Sunday.

In his work, the writer’s source claims: “A mutual friend of Kim and Paris [Hilton] had advised her that if she wanted to achieve fame, a tape would be the way to go … Kim had discussed the idea of producing a tape with her family beforehand.”

In 2007, Kardashian’s sex tape was released by Vivid Entertainment. The future reality star ended up suing the company in what resulted in a $5 million settlement, and the video was distributed. KUWTK debuted in October 2007.