Kris Jenner Being Extorted Over Sex Tape She Claims Doesn't Exist

Another Kardashian sex tape scandal!

Kris Jenner claims she's being blackmailed by a man who alleges to have in his possession a video of her having sex on camera, and now she's gotten the authorities involved because of the increasing threats made to her and her family!

"L.A. County Sheriff's Deputies went to the Jenner house Tuesday and took a report, which says Kris has been receiving up to 300 phone calls, voice mails and texts a day for the last few weeks -- day and night -- from someone who says they have the tape," a source tells TMZ.

The unidentified suspect claims he has an offer to sell it to TMZ, but the website flatly denies having anything to do with it and denies they ever had an intention to purchase it.

The momager is concerned about the family's safety and believes she might be being followed, so she has stepped up her security detail in the wake of the incident.

Someone should tell whoever is doing this that grandmother porn isn't that in demand!