Blondes may have more fun but redheads have more sex, according to new research in Germany.

The study by Hamburg Sex Researcher Professor Dr Werner Habermehl looked at the sex lives of hundreds of German women and compared them with their hair colour.

He said: "The sex lives of women with red hair were clearly more active than those with other hair colour, with more partners and having sex more often than the average. The research shows that the fiery redhead certainly lives up to her reputation."

He added that women who dyed their hair red from another colour were signalling they were looking for a partner, and added: "Even women in a fixed relationship are letting their partners know they are unhappy if they dye their hair red. They are saying that they are looking for something better."

Psychologist Christine Baumanns said however that it may not be the women who were to blame for the better sex lives of redheads.

She said: "Red stands for passion and when a man sees a redhead he will think he is dealing with a woman who won't mess around, and gets straight to the point when it comes to sex."