Marie Stopes

“ To make it quite satisfactory to the man, the woman must be tender and supple and skilled in the charm and movements of love-play. When this is so there may be an exquisite grace in the event, as though there had entered into it the poetry and beauty of the picture of the sleeping Endymion over whom the floating goddess Diana stooped. ”

“ It is perhaps not generally realized 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 character 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 enjoy union when both are lying on their sides. Though medically this is generally considered unfavorable or prohibitive for conception, yet I know women who have had several children and who always used this position. ”

“ And that position is symbolic of the coming together of the two who meet gladly. It is usual in civilized societies for the man to lie above the woman as she reclines on her back. Indeed a curious idea seems to exist that it is "immoral" or "humiliating" for the man if the position is reversed. Yet Ovid recommends it to little women, and where the woman is muscularly delicate and easily crushed there is no doubt that it is a position much more likely to give her pleasure. ”