For centuries, women have been reporting engorgement of the upper, anterior part of the vagina during the stage of sexual excitement - but it took an 83-year-old cadaver to prove the existence of a G-spot.

That's right, I said 83-year-old cadaver.  If you expected something sexier by that title, you can stop reading now.

A new study published in The Journal of Sexual Medicine says that this elusive structure does exist anatomically. According to Adam Ostrzenski, M.D., Ph.D., of the Institute of Gynecology in St. Petersburg, FL, the dissection established the presence of the G-spot, a well-delineated sac structure located on the dorsal (back) perineal membrane, 16.5 mm from the upper part of the urethral meatus, creating a 35 degree angle with the lateral (side) border of the urethra.

Now you know.