When describing sex in the proverbial locker-room, men tend to employ the language of penetration—— adjectives like "hard" and "deep." We go in, we extricate: as though pleasure was something buried deep inside her womb, a nugget to be rammed, jostled and liberated with the powerful male tool.

Rare is the man who says, "I made love to her as subtly and lightly as a feather"; "I grazed her vulva as with the delicate wings of a butterfly"; "I barely touched her she came so hard!"

And yet such language would be more appropriate, as the inner two-thirds of the vagina are substantially less sensitive than the outer third.

Numerous studies have demonstrated that women whose lovers give them direct clitoral stimulation during sexual activity are more likely to climax consistently. But because of its location, most sexual positions do not properly stimulate the clitoris. As Shere Hite concluded, "Sex provides efficiently for male orgasm, and inefficiently for female orgasm."

If you were going to paint a landscape in fine, subtle watercolors, would you use a soft, flexible brush, or a cumbersome, unwieldy roller? A woman's orgasm is complex and often elusive, and many men are unable to control their penises with enough precision to properly guide a woman through the stages of arousal. Making love with one's penis is like trying to write calligraphy with a thick magic marker.

The tongue, on the other hand, is under our direct control, has no time constraints and can be manipulated with expert precision. Unlike the penis, it's effective when hard or soft, and never gets over-heated. When using his tongue, a man doesn't have to worry about fatiguing, nor does he need fret over premature ejaculation or impotence. He can relax and enjoy the act of giving.