(Image: Anthony Marsland/Stone/Getty)

It has evaded lovers for centuries, but in February we learned that the elusive and semi-mythical G spot had been captured on ultrasound for the first time.

Emmanuele Jannini at the University of L’Aquila in Italy discovered clear anatomical differences between women who claim to have vaginal orgasms – triggered by stimulation of the front vaginal wall without any simultaneous stimulation of the clitoris – and those that don’t. Apparently, the key is that women who orgasm during penetrative sex have a thicker area of tissue in the region between the vagina and urethra, meaning a simple scan could separate out the …