London, Sept 1 : Kim Kardashian's sex tape with her former love interest Ray J has been tagged for 18 million pounds.

The mystery buyer approached the owners with the offer, leaving Hollywood sources claiming the bidder could be the reality TV babe herself.

The interest in the 39-minute flick has gone up after the 30-year-old socialite's wedding, with two million fans paying up to 30 pounds to see the video online in August alone.

The `Keeping Up with the Kardashians' star is seen in a steamy hotel romp with Ray J in the video.

Vivid Entertainment, the tape's rights owner has revealed that lawyers acting for a buyer had approached them.

"I have no idea who is behind this offer but if it's Kim, I have a tremendous amount of respect for her," the Daily Star quoted Steve Hirsch, Vivid boss as saying.

"She has my number and can call me any time," Hirsch stated.

Kardashian had sued Vivid Entertainment four years back after the tape was made public, with the legal battle ending earlier this year when she got a 3 million pounds pay-off and a share of the profits. (ANI)