Heather Mills is set to write a book of sex tips for women.

The former model, who is currently embroiled in a bitter divorce battle with Sir Paul McCartney, sees herself as a female "sex guru" but plans to write under a pseudonym because she is worried about a public backlash.

A source told Britain's Sunday Mirror newspaper: "I think Heather would like to set herself up as a female sex guru. But she is worried what people will think of her so she discussed the possibility of releasing the book under a false name.

"Heather believes there is a gap in the market for a good sex guide for women, as manuals are normally written from a man's perspective.

"She wants to give her little secrets away on how to attract a man and how to keep him happy in the bedroom. Despite the breakdown of her marriage to Paul, neither has ever said anything bad about their sex life."

Heather's representative has denied she is set to write a book of sex tips, saying: "Right now she is counselling cancer children in the US and trying to facilitate a bone marrow transplant to a young mother."

Earlier this year, it was revealed Heather had simulated bondage and spanking and posed naked in several sexual positions for German publication The Joys Of Love.

Despite claims the book was pornographic, Heather has always insisted it was an educational manual.