There are as you know several physical erotic zones on a human being, its great to stimulate them or be stimulated. For a woman the most well known spots are probably besides the nippels the clitoris and g-spot.


There is also a spot deep inside the vagina, behind cervix called posterior fornix. When the woman is excited the vagina expands, get wet and ready for the penis to be inserted. Its great to fuck in that moode and feel her hornyness. When the cock stimulates clitoris, g-spot and the sensitive nerveendings in posterior fornix at same time. Preferably in missionary so the bodyweight can help the stimuli on clitoris when you rotate your hips and have insert the cock balls deep.


See the following link to a figure which describe posterior fornix:


only registered users can see external links