A gynecologic UFO. There is no G-Spot. However, some women have an area on the roof of the vagina which, if stimulated when they are sexually aroused, can result in increased sensation and pleasure. This area includes a number of structures that are sexually reactive, including the urethra, clitoral tissue, and Halban’s fascia. (Halban’s fascia is the space between the highly innervated trigone of the bladder and the roof of the vagina. It has a rich supply of nerves and can expand when a woman is sexually aroused.) So while there is no G-Spot, the Journal of Sexual Medicine has been playing around with the more anatomically accurate term G-Zone.