The images on this page http://www.afezone.com/ square up well with our personal experience.

You might find that letting your fingers do the walking will enable the two of you to confirm this. One good position for you to try is allowing her to lie comfortably on her back whilst you situate yourself near the bottom of the bed. Your fingers will need to be able to curve comfortably downward to locate the delightful spot in question. A calm exploratory approach might be best. Take your time, be gentle. And you just might be rewarded with a nice little "Oh My".

Some women may not have the remarkable sensitivity as the gem I have the pleasure to work with. But they all seem to have the same parts.

Good luck!