The G-spot is named for Dr. Ernest Grafenberg, who first described it in a 1950 article in the International Journal of Sexology. He found a highly erogenous zone inside the vagina that gets bigger when directly stimulated and that can lead to a powerful climax.
Grafenberg’s findings were that:
…an erotic zone could always be demonstrated on the anterior wall of the vagina along the course of the urethra,… [which] seems to be surrounded by erectile tissue like the corpora cavernosa [of the penis]…. In the course of sexual stimulation, the female urethra begins to enlarge and can be easily felt. It swells out greatly at the end of orgasm. The most stimulating part is located at the posterior urethra, where it arises from the neck of the bladder
As sex is among the more powerful forms of pleasurable stimuli known to man, researchers among the biological, anthropological, and medical fields have endeavored to discover greater knowledge of human sexuality.
This discovery can enhance sexual stimulation for women and deepen many facets of pleasure.