Ray J Sues Kim Kardashian For Betraying Sex Tape Secret

Ray J is firing back at Kim Kardashian and Kris Jenner with a lawsuit of his own after they sued him for defamation ... he says they were all in on the infamous sex tape, and it wasn't leaked against Kim's will.

In new legal docs, obtained by TMZ, Ray J reveals what he says actually went down with the sex tape. He claims he and Kim consensually shot a sex tape in 2003, and then in 2006 they discussed releasing it, and he says Kim insisted Kris be in charge of the release and commercial exploitation of the film.

In the lawsuit, filed by attorney Howard King, Ray J claims Kim and Kris have "spent two decades peddling the false story that the sex tape ... was leaked against her will."

Ray says Kim and Kris are "furious" he "no longer wants to play along with their tall tale."

Kim's and Kris' attorney Alex Spiro tells TMZ … "After realizing he is losing the case and losing his way, this disjointed rambling distraction is not intimidating anyone. Ray J will lose this frivolous case too."

In the docs, Ray says on "The Kardashians" Kim, Kris, and Ye falsely accused him of sexually assaulting Kim while she was asleep, releasing revenge porn, and extortion. Ray says he initiated legal proceedings, and Kim, Kris, and their production company entered a settlement with him where Kim agreed to pay him $6 million.

Ray says the agreement also featured a requirement barring further mention or public reference to the sex tape on "The Kardashians," but he says almost immediately after the agreement was executed, Kim, Kris, Ye, and Kendall Jenner all made statements in violation of the agreement.

In the docs, Ray says he is entitled to $1 million in damages under the agreement.

Kim and Kris sued Ray J for defamation last month, and here he says their lawsuit is not really about defamation ... he says "it's about publicity, power, and punishment." Ray says they filed a baseless lawsuit to "weaponize the judicial system, shirk their contractual obligations, and sacrifice on the altar of fame."

Ray also explains his Kardashian RICO comment, which led to their defamation lawsuit, in the docs ... he says he saw parallels between RICO and Kim's and Kris' "conspiracy with Vivid to release and lie" about the sex tape, as well as Kim's and Kris' "conspiracy to trick him into signing the Agreement before broadcasting further content" about the sex tape.

In the docs, Ray says he considered bringing his own lawsuit against Kim and Kris under the civil RICO statute and wondered whether they might be prosecuted for RICO violations. He says that's why his interview on TMZ's Tubi doc, "United States vs. Sean Combs," featured an aside about the Kardashians and RICO in which he said "If you told me the Kardashians was being charged for racketeering, I might believe it."