Sex efficiency through exercises : special physical culture for women / by Th. H. van de Velde ; [photos, by E. Steinemann].
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clitoridal and vaginal sensations. In women who are novices, clitoridal sensation is apt to predominate, and sensitiveness to be much greater outside than inside the vaginal sheath. Therefore at the beginning of sexual relations the considerate husband should be careful to give much attention and ingenuity to delicate contact with this little organ. He should even remember contact with the clitoris, after the immisio penis has begun, i.e., after the beginning of actual intercourse, which may be managed by appropriate attitudes and is helped by the vehement rhythmic contractions of the introitus vaginae in orgasm. I speak of cases of fairly normal build and proportion, in whom the clitoris is not positively dwarfed and defective, or anchored too high on the pubic rim. But it is possible for a variety of reasons that orgasm is delayed, and, therefore, clitoridal stimulation should be applied either before or immediately after insertion. And—to return to the substance of this slight discursion—as the clitoris itself has so little independent movement, the best way of making clitoridal stimulation by the penis possible, is by sufficient increase of the pelvic angle, or forward dipping of the pelvic rim. To understand the full range of possibilities here, it is necessary to realise that there are two primary positions in coitus between man and woman : the one which we share with all other mammals: the averse position, in which the man faces forwards to his partner, but she turns her back; and the converse position, distinctive to our species, in which they face one another. And in these two main categories there are numerous postures or attitudes.* And anyone who is even partially aware of these attitudes will understand at once that pelvic inclination cannot be changed or increased equally well in them all. Each attitude has its peculiar charms, advantages and difficulties; but, speaking generally, it may be affirmed that the least suitable and favourable to change of pelvic angle is flexion (Attitude III. in the Synousiology of " Ideal Marriage ") which corresponds * Cf. " Ideal Marriage," Chapter XI., and " Fertility and Sterility in Marriage," Chapter XIII., in which all these are considered in detail ; as regards types of sensation afforded and aptitude for impregnation or its reverse, i.e., contraception.