Incestuous
The word incestuous mean relationship is one involving sexual intercourse between two members of the same family, for example a father and daughter, or a brother and sister. There are certain taboos which have developed over the time in the society, incest or incestuous relationship is one such thing. There are several views as to why incest is social taboo, one of the view was given by the Lévi-Strauss and his concept of structuralism. While analyzing kinship terminology and kinship system, the accomplishment that first brought him to preeminence of anthropology. Families may be defined differently in different cultures, but something common to all culture is a taboo on incest. Lévi-Strauss argues this is to force people to marry strangers outside families. In the process of marrying a stranger the path towards formation of community is laid, increasing interaction and bond formation among unrelated people. Lévi-Strauss claimed this to be the root of civilization.