Sexuality is a condition inherent to all human beings and, moreover, a right that must be guaranteed by society. From birth, it is a constitutive dimension of the human being, which is projected and lived throughout life. It goes beyond sexual relations or genitality; it is the construction made by men and women throughout their development.In this work different aspects of this important dimension of the personality are approached. It is directed to the education of the sexuality of adolescents of religious contexts. It is based on alternative and developmental sexual education, whose significant result is the enrichment of scientific positions on sexuality education from a historico-cultural approach that emphasizes the action of the mediators who are the family and the teaching staff.