Women are more likely to have orgasms when making love to a rich man, says a potentially controversial new study by British scientists.
“Women's orgasm frequency increases with the income of their partner,” said Thomas Pollet, a psychologist at Newcastle University, who conducted the research.
He told The Sunday Times the phenomenon is an “evolutionary adaptation” that is built into women, driving them to select men on the basis of their perceived quality.
The newspaper said the study is potentially controversial because it suggests women are programmed to be gold-diggers.
Pollet and his co-author Daniel Nettle believe that the female orgasm is an evolutionary adaptation that drives women to choose and retain high-quality partners.
Using data from one of the world's biggest lifestyle studies, the Chinese Health and Family Life Survey, they found that money was one of the main factors behind how frequently women had orgasms - responses ranging from 'always' to 'rarely or never'.
“Increasing partner income had a highly positive effect on women's self-reported frequency of orgasm. More desirable mates cause women to experience more orgasms,” the newspaper quoted Pollet as saying.
The Chinese Survey targeted 5,000 people across the country for in-depth interviews about their personal lives, but previous research in Germany and America have also found that money is a more important factor than looks in orgasm frequency.
David Buss, professor of psychology at the University of Texas, Austin, who raised this question in his book "The Evolution of Desire", told the newspaper that orgasms could “serve as a signal that women are highly sexually satisfied, and hence unlikely to seek sex with other men”.