Parents should talk about sex with their kids, before a rascal friend would tell our children about it in a wrong and confusing way.
The point is telling our children about sex in the context of husband and wife’s love.
Also the point here is not just confining to explain biological topics but, as I said, in the context of love within marriage. In the context of love between parents, which is where the spouses express and show their mutual love, to each other. / Photo from: father-son-talking www lds org