At least that is what the drug companies want you believe, but only because viagra has not proven effective in increasing sensation or potential for sensation in the clitoris. They are hoping by providing more blood and certain chemicals to the skeens gland it will be enlarged enough to make g-spot orgasms more prevelant, and of course expanding on freudian myth of the vaginal orgasm being the mature orgasm for women. These guys are even delusional enough to think that they have discovered breakthrough information regarding understanding the female anatomy when their primary research subjects are cadavers.

 "Dr Emmanuele Jannini and colleagues at the University of L'Aquila set about trying to identify whether there were any chemicals which play a role in sexual functioning in the area where the G-spot is meant to be.

They chose to search for a protein or enzyme called PDE5. This protein plays an important role for men - too much of it prevents erections.

Dr Jannini found this protein in the vagina of five volunteers.

In tests on the bodies of 14 dead women, they found that the protein was mostly clustered around the G-spot.

However, in two of these subjects there were very low levels of PDE5. They were also found to have no Skene's glands.

This led Dr Jannini to conclude that these women would have been physically incapable of having an orgasm.

He suggested that women with high levels of PDE5 and large Skene's glands are most likely to have orgasms.

As a result, they believe that drugs like Viagra may have the greatest effect on these women.

Dr Jannini told New Scientist magazine: "It is ridiculous but true that we have waited until now to really know the female anatomy."

A number of studies have suggested that Viagra could help women to have orgasms.

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