Kevin Federline is blackmailing Britney Spears with a sex tape they made as newlyweds.  He is looking to get money and custody of their children.

Dumped husband Kevin Federline has been touting the four-hour tape for sale and has already been offered £26 MILLION.

One close pal said: “This vid is dynamite and Kev knows it.”

The final straw for Britney occured when she caught Kevin red-handed in his hotel room with another woman. 

And the News of the World can also reveal that Britney slapped divorce papers on Federline—who had already been linked with hookers—after she caught him in a bedroom with another woman.

The sex tape seems to leave no curve unturned as the two fully explored each other in every position they could conjure up. 

Britney, 24, fears the raunchy footage will destroy her wholesome image unless she caves in to his demands for a £16million payoff and custody of their children Sean Preston, one, and Jayden James, eight weeks.

The home-made video is believed to show the naked couple enjoying an uninhibited range of love-making and sexual games.It was made during the first weeks of their relationship two years ago when they were holed up in one of the exclusive bungalows at the Beverly Hills Hotel in Los Angeles.

Kevin has already told Britney to comply or else he will release the sex tape to be viewed on the internet and all over the world. 

“Kevin has told Britney she should comply with his demands otherwise the whole world will see her having sex, which will be devastating.”

The source explained that Federline is so enraged with his estranged wife he will do anything to hurt her.

Kevin might just get assasinated if he in fact goes through with his dirty scheme. Federline is slime and karma will catch up with him eventually.