The word coitus derives from the Latin " coĭtus " which refers to the intimate union between two sexes or sexual intercourse, because it consists of the introduction of the penis into the vagina or anus, it can also be said that fertile heterosexual couples can be present for reproductive purposes. The duration of a sexual act can be from two minutes to more than forty minutes.
In this area there are various types of intercourse such as vaginal intercourse, anal intercourse.
Anal intercourse is the penetration that is done in the anus, here in the anal area lubrication is needed to make it easier to penetrate than in the vaginal area, but they can also run the risk of coming into contact with sexually transmitted diseases that are transmitted from person to person through sexual contact that occurs during sexual intercourse, including vaginal, anal and oral. The other transmission would be that of HIV, which is one that infects CD4 cells, which are known as T cells or helper T cells., this can be transmitted if people do not have sex safely.
Vaginal intercourse is when they insert the penis into the vagina and perform sexual practice that among fertile individuals is likely to result in fertilization and pregnancy, which is why it is the target of some contraceptive systems, which is what prevents or reduces the possibility of a fertilization in fertile women who maintain sexual ties of a heterosexual condition in which they incorporate vaginal intercourse.