In 1950, gynecologist Ernst Grafenberg made a surprising discovery. He found a highly erogenous zone inside the vagina that gets bigger when directly stimulated and that can lead to a powerful climax. Ever since, both women and men have been searching for this Holy Grail of sexual pleasure.

When Dr. Grafenberg discovered the G spot, Kinsey's hypotheses—already accepted by Masters and Johnson and thus considered "official" sexual knowledge—was called into question. According to Kinsey, the most effective—and indeed the only—way to stimulate a woman is to focus attention on the clitoris. While clitoral stimulation is undoubtedly enjoyable for many, many women, Dr. Grafenberg taught us that it was receiving a lot of attention while another erogenous zone was being entirely overlooked.

At the time, quite a controversy swelled up around Grafenberg's "discovery" and remnants of this controversy are still with us today. While some researchers have been able to confirm the existence of the G spot (and of the phenomenon of female ejaculation that is said to come with it), others have been less successful. The information contained in this article is drawn from Drs. John Perry and Beverly Whipple, two authors who are convinced of the existence of a specific erogenous area inside the vagina.