Sexual intrcourse position

Description:Mating can occur only with entwined tails, thus placing the male and female vents together for insertion of the penis. Courtship patterns range from a seemingly abusive interaction to a titillation routine that entices… To accomplish internal copulation certain body and organic adaptations are necessary. In the human male, the penis serves both excretory and reproductive functions. During intercourse, the blood flow is temporarily increased and trapped in the penis so that it becomes enlarged and elevated, a condition known as erection. Erection changes the normally soft and flaccid organ to one of greater size and rigidity to permit easier penetration into the reproductive tract of the female. In the female reproductive system, an external opening leads to the vagina , which in turn communicates with the uterus or womb , a thick-walled, pear-shaped organ where the sperm fertilizes the egg and where the fetus develops.

Views: 8353 Date: 2018-10-21 Favorited: 84