My girlfriend recalls an incident when she was younger, of her crashing her bicycle, and hitting her crutch on the seat. It appears this is the reason for a huge lack of feeling in that general area. She feels almost nothing from penetration, and clitoral stimulation. The area she gets the most sexual feeling from is between the clitoris and vagina. The only stimulation that makes her appear like a normal girl should during sexual acts is a vibrator on this particular area. Is there any possibility of reversal or repair, either naturally or surgically?

Time has not cured this problem, she has had it since shes been sexually active. Any ideas or advice welcome, although please be serious.