100 Women: The myth of the female orgasm
Dr Cindy Meston debunks one myth around how the female orgasm works.
She runs a sexual psychophysiology lab at the University of Texas at Austin, where she has made some surprising discoveries.
Listen to Why Factor: The Female Orgasm on the BBC World Service on Friday 2 December.
Click here for transmission times, or to listen online (from 19:30 GMT)