Male and female are incomplete without each other. Their lives become really meaningful only when they reach the stage of complete mental and physical harmony. Nature has created man and woman for each other and sex has got a vital role to bring them as close as possible. If the sexual life of married couple is fully satisfactory and blissful, only then they can remain mentally and physically healthy, otherwise a gap of unhappiness and frustration starts developing between them which is a curse of modern society. Ignorance of sexual behaviour can be a cause for this situation. These days it is our ambition to give best possible education to our children so that they achieve the highest goal in their lives. We tell them about every part of their bodies except the sexual organs. Why so? Simply because the society considers it bad? Perhaps they are not aware of the fact that children have natural curiosity about sex. When their queries regarding sex are not answered properly by parents, they revert to their equally ignorant friends, who try to satisfy their curiosity by wrong notions and distorted facts in the tender brains of the children. Therefore it is a moral duty of the parents to impart all necessary knowledge and information to their growing children about sex and its importance in life. This only can save them from wrong notions and disastrous results.