Britney Spears has been forced to issue a statement denying claims by one of K-Fed's mates that she's obsessed with girl on girl action and X-rated movies.

The friend, rapper Omar 'Iceman' Sharif, told US mag In Touch Weekly, "Britney was into threesomes and girls.

"There was tons of porn in the house but it was mostly Britney's."

He then went on to say that Britney would often romp with female pals while Kev watched.

Another (anonymous) "friend" said, "Sometimes it was three girls, and sometimes there were more like six. I heard about her being with girls at least 20 times while they were married."

Britney's US label boss released a clipped statement yesterday saying, "It's not true", while insiders close to the singer say the latest stories could have something to do with K-Fed himself.

"This is all part of a plan to smear Britney," said one. "They are close to agreeing a divorce settlement - so this is a warning shot if he doesn't get what he wants."

It's all getting rather dramatic...

Check our Britney's video back catalogue here

'SLJ'