An impersonal and scientific knowledge of the structure of our bodies is the surest safeguard against prurient curiosity and lascivious gloating. This knowledge at the back of the minds of the lovers, though not perhaps remembered as such, may also spare the unintentioned cruelty of behaviour which so readily injures one whose lover is ignorant.
What actually happens in an act of union should be known. After the preliminaries have mutually roused the pair, the stimulated penis, enlarged and stiffened, is pressed into the woman's vagina. Ordinarily when a woman is not stimulated, the entrance to this canal, as well as the exterior lips of soft tissue surrounding it, are dry and rather crinkled, and the vaginal opening is smaller than the man's distended penis. But when the woman is what is physiologically called tumescent (that is, when she is ready for union and has been profoundly stirred) local parts are flushed by the internal blood supply and to some extent are turgid like those of the man, while a secretion of mucus lubricates the opening of the vagina. In an ardent woman the vaginal orifice may even spontaneously contract and relax. (So powerful is the influence of thought upon our bodily structure, that in some people all these physical results may be brought about by the thought of the loved one, by the enjoyment of tender words and kisses, and the beautiful subtleties of wooing.) It can therefore be readily imagined that when the man tries to enter a woman whom he has not wooed to the point of stimulating her natural physical reactions of preparation, he is endeavouring to force his entry through a dry-walled opening too small for it. He may thus cause the woman actual pain, apart from the mental revolt and loathing she is likely to feel for a man who so regardlessly uses her. On the other hand, in the tumescent woman the opening, already naturally prepared, is lubricated by mucus, and all the nerves and muscles are ready to react and easily accept the man's entering organ. This account is of the meeting of two who have been already married. The first union of a virgin girl differs, of course, from all others, for on that occasion the hymen is broken. One would think that every girl who was about to be married would be told of this necessary rupturing of the membrane and the temporary pain it would cause her; but even still large numbers of girls are allowed to marry in complete and cruel ignorance.
It should be realised that a man does not woo and win a woman once for all when he marries her: he must woo her before every separate act of coitus, for each act corresponds to a marriage as other creatures know it. Wild animals are not so foolish as man; a wild animal does not unite with his female without the wooing characteristic of his race, whether by stirring her by a display of his strength in fighting another male, or by exhibiting his beautiful feathers or song. And we must not forget that the wild animals are assisted by nature; they generally only woo just at the season when the female is beginning to feel natural desire. But man, who wants his mate all out of season as well as in it, has a double duty to perform, and must himself rouse, charm, and stimulate her to the local readiness which would have been to some extent naturally prepared for him had he waited till her own desire welled up.
To render a woman ready before uniting with her is not only the merest act of humanity to save her pain, but is of value from the man's point of view, for (unless he is one of those relatively few abnormal and diseased variants who delight only in rape) the man gains an immense increase of sensation from the mutuality thus attained, and the health of both the man and the woman is most beneficially affected.
Assuming now that the two are in the closest mental and spiritual, as well as sensory harmony: in what position should the act be consummated? Men and women, looking into each other's eyes, kissing tenderly on the mouth, with their arms round each other, meet face to face. And that position is symbolic of the coming together of the two who meet together gladly.
It seems incredible that to-day educated men should be found who—apparently on theological grounds—refuse to countenance any other position. Yet one wife told me that she was crushed and nearly suffocated by her husband, so that it took her hours to recover after each union, but that "on principle" he refused to attempt any other position than the one he chose to consider normal. Mutual well-being should be the guide for each pair. (See Addition, p. [114].)
It is perhaps not generally realised how great are the variations of size, shape, and position of all the sex parts of the body in different individuals, yet they differ more even than the size and characters of all the features of the face and hands. It happens, therefore, that the position which suits most people is unsatisfactory for others. Some, for instance, can only benefit by union when both are lying on their sides. Though medically this is generally considered unfavourable or prohibitive for conception, yet I know women who have had several children and whose husbands always used this position. In this matter every couple should find out for themselves which of the many possible positions best suits them both.
When the two have met and united, the usual result is that, after a longer or shorter interval, the man's mental and physical stimulation reaches a climax in sensory intoxication and in the ejaculation of semen. Where the two are perfectly adjusted, the woman simultaneously reaches the crisis of nervous and muscular reactions very similar to his. This mutual orgasm is extremely important (see also p. [58]), but in many cases the man's climax comes so swiftly that the woman's reactions are not nearly ready, and she is left without it. Though in some instances the woman may have one or more crises before the man achieves his, it is, perhaps, hardly an exaggeration to say that 70 or 80 per cent. of our married women (in the middle classes) are deprived of the full orgasm through the excessive speed of the husband's reactions, or through some mal-adjustment of the relative shapes and positions of the organs. So deep-seated, so profound, are woman's complex sex-instincts as well as her organs, that in rousing them the man is rousing her whole body and soul. And this takes time. More time, indeed, than the average, uninstructed husband gives to it. Yet woman has at the surface a small vestigial organ called the clitoris, which corresponds morphologically to the man's penis, and which, like it, is extremely sensitive to touch-sensations. This little crest, which lies anteriorly between the inner lips round the vagina, enlarges when the woman is really tumescent, and by the stimulation of movement it is intensely roused and transmits this stimulus to every nerve in her body. But even after a woman's dormant sex-feeling is aroused and all the complex reactions of her being have been set in motion, it may even take as much as from ten to twenty minutes of actual physical union to consummate her feeling, while two or three minutes often completes the union for a man who is ignorant of the need to control his reactions so that both may experience the added benefit of a mutual crisis to love.
A number of well-meaning people demand from men absolute "continence" save for procreation only. They overlook the innumerable physiological reactions concerned in the act, as well as the subtle spiritual alchemy of it, and propound the view that "the opposition to continence, save for procreation only, has but one argument to put forward, and that is appetite, selfishness." (The Way of God in Marriage.)