Sexual intercourse

Sexual Intercourse is the a sexual act that takes place between a male and female of the same (or closely related) species. It mammals, it involves the male placing his penis inside the vagina inside of the female and moving it in and out until he ejaculates. Upon ejaculation (if no condom is used), the sperm travels to the egg (if the female is ovulating), it is fertilzed, and the zygote now makes its way up to the uterus to be implanted.