Why is it easy to fertilize with a back-in-the-back approach? Precisely because it is the original sexual position, it can be said to be a perfect physiological anatomical way of sexual intercourse. It is commonly used in mammals and naturally also for humans. First of all, women's towering buttocks will have a strong sexual attraction to men, causing obvious sexual excitement, the rich fat of women's buttocks twitches like a sponge, and the cushion forms pressure, making both men and women feel comfortable and happy. 2. The dorsal type is the most likely to cause vaginal orgasm In this position, women can actively cooperate with men, especially when kneeling or standing, they can actively cater to men's pumping movements, and can also tighten vaginal muscles. Some men complain that the vaginal muscles contracted weakly after women give birth, and the sexiness is not strong, this position should be taken at this time, the best woman is completely prone on the bed, the man k...