Definition: Vaginal intercourse, also known as fuck, are the human way of making love.
While its main purpouse is reproduction and the survival of human beings, lots of times is practized just for pleasure or/and and a demonstration of love and emotional closeness.
Intercourse has a main role in compromise. In lots of societies is normal that the couples have intercourse using contraceptives or having anal sex, sharing pleasure and pain as well as reinforcing their emotional ties by having sex, even if they are concsiently avoiding pregnancy.
Intercourse also defines any kind of sexual behaviour where a penetration is produced, no matter is it's anal or oral sex.
"Having intercourse" may refer to any of these behaviours, as well as any other sexual acts where a penetration is not necessarily produced not mentioned here.
Coitum can be preceed by preliminar erotic games , which cause the arousal of the parties, with the erection of the penis and the lubrication of the vagina.
