The students interviewed had sex on average three times a week and the women orgasmed 61 per cent of the time, while the men orgasmed during 70 per cent of their sexual encounters.

The scientists established women fake orgasms far more often than men do – they do so 18 per cent of the times they have sex while men only fake it in one in 20 times.

Almost one in six of the women questioned admitted they had cheated on their partner.