Muscles throughout the body begin to tense at the onset of sexual excitement, and this tension increases as the excitement grows. Certain glands and tissues also increase their secretions as the sexual act commences and moves closer to completion. The salivary glands and the nasal mucosa flow freely, and it is this latter fact which causes, in conjunction with the engorgement of the surface blood vessels, the characteristic nasal stuffiness so many people notice after intercourse. In some women the secretions of the glands of Bartholin and the mucus from the cervix of the uterus become amazingly copious as sexual excitement rises, and particularly during orgasm itself. This profuse flow may have given rise to the widely held and entirely mistaken idea I have mentioned—that in orgasm women have an ejaculation similar to the male’s. There is no such ejaculation—nor indeed any female organ that could make one possible.

One of the most amazing aspects of sexual intercourse is the fact that all five senses become extremely dulled as the act increases in intensity. The ability to feel hot and cold, to feel pain, or to hear sounds becomes almost nonexistent. The eyes take on a characteristic trance-like stare, and vision becomes constricted. The entire mind and body are concentrated fully on the mounting sexual feeling and exclude all else. In orgasm itself the anesthesia of the senses is almost total. Indeed many people experience a temporary loss of consciousness for a matter of seconds. Some, according to Kinsey’s findings, remain unconscious for two or more minutes.

This last fact brings us to our examination of the experience of orgasm itself. If you are to understand frigidity in women it is of tremendous importance to grasp the nature of orgasm and what it means physically and psychologically. The importance of such understanding is due, of course, to the fact that orgasm, of the type described here, is the very thing the frigid woman is unable to have. In fact, its absence from her experience is the usual definition of frigidity. Certain kinds of frigid women may experience one, two, or all of the physical and psychological reactions described above, which normally would terminate with orgasm. But the final experience eludes them; at the vital juncture the body, despite an agonizing need to come to a climax, refuses to respond; it draws back, goes dead.

Orgasm is the physiological response which brings sexual intercourse to its natural and beautiful termination. It is preceded by a very dramatic increase in all of the phenomena noted above. In the moment just preceding orgasm, muscular tension suddenly rises to the point where, if the sexual instinct were not in operation, it would become physically unendurable. The pelvic motions of the man and the movement of the penis back and forth within the vagina increase in speed and in intensity of thrust. The woman’s pelvic movements also increase, and her whole body attempts with every move to heighten the exquisite sensations she is experiencing within her vagina. According to many women with whom I have discussed this experience, the greatest pleasure is caused by the sensation of fullness within the vagina and the pressure and friction upon its posterior surface.

At the moment of greatest muscular tension all sensations seem to take one further rise upward. The woman tenses beyond the point where, it seems, it would be possible to maintain such tension for a moment longer. And indeed it is not possible, and now her whole body suddenly plunges into a series of muscular spasms. These spasms take place within the vagina itself, shaking the body with waves of pleasure. They are felt simultaneously throughout the body: in the torso, face, arms, and legs—down to the very soles of the feet.

These spasms, which shake the entire body and converge upon the vagina, represent and define true orgasm. At this moment the woman’s head is thrown back and her pelvis tips upward in an attempt to obtain as much penetration from the penis as is possible. The spasms continue for several seconds in most women, though the time varies with every individual, and in some women they may continue though with decreasing intensity, for a minute or even more.

Many women can repeat this performance two or more times before their partner has his orgasm. The pathway, neurologically and psychologically, has been set for orgasm and, if her partner continues she can respond. I have had women report that the last orgasm is sometimes more intense and satisfying than the first.

If the woman is satisfied by her orgasmic experience she will discharge the neurological and muscular tension developed in the sexual build-up. When satisfaction has been achieved, her strenuous movements cease and within a short period blood pressure, pulse, glandular secretion, muscular tension, and all the other gross physical changes which characterize sexual excitement return to normal, or even to subnormal, limits.

There have been detailed studies made of the physical reactions of both men and women during intercourse. I think it is important to realize that in almost every detail, including orgasm, these reactions and the subjective experience of pleasure parallel each other in the sexes. The major differences are that the woman is slightly slower to respond at the outset than the man, and the orgasm of the man is characterized by the ejaculation of sperm into the vagina.

Full sexual satisfaction is followed by a state of utter calm. The body feels absolutely quiescent. Psychologically the person feels completely satisfied, at peace with the world and all things in it. The woman in particular feels extremely loving toward the partner who has given her so much joy, such a transport of ecstasy. Often she wishes to hold him close for a while, to linger tenderly in the now subdued glow of their passion.