Kris Jenner spearheaded the release of her daughter’s sex tape, according to Star magazine.

Jenner reportedly involved herself in arranging the leak of the sex tape in 2007.

A source said: “Kris was totally involved in arranging the sale of Kim’s tape.

“The video already existed and Kris was there every step of the was as a middleman brought it to market it to an adult entertainment company.”

Kris was delighted when Kim Kardashian: Superstar made it’s debut.

Kris Jenner initiated the sale of Kim's sex tape

“That must have thrilled Kris since you could hardly call Kim a household name at that point in time,” the insider said.

Kris denies that she had anything to do with the tape and said the suggestion is “disgusting and disturbing.”

“I saw Kris Jenner’s signature on the contract; I believe she got somewhere between $250,000 (€202,658) and $500,000 (€405 317) for the original deal with the middleman,” the source said.

Kim’s former nanny Pam Behan said: "I believe [Kris] was grooming her children for their current celebrity status their entire lives... I do believe that the success they enjoy now is what she always hoped for and wanted for them and for herself."

The source said: "Everything she does in this world, every decision she makes on her daughters' behalf, is based on greed and publicity.

"And has nothing to do with her family's stability or happiness."