When it comes to orgasms, lesbians come out on top.
Gay women climax more frequently than straight women during sex with a familiar partner: 75 per cent of the time versus 62 per cent, according to research from the Kinsey Institute.
So what are lesbians doing that men aren't?
According to study author Dr Justin Garcia, lesbians tend to use a variety of techniques, and the sex often lasts longer.
His advice: use your hands and mouth more.
Here are some ideas to get you started...