The author feels that homosexuality originates not in the Oedipal phase but in the 'primeval situation' that corresponds roughly to the anal phase. The male child wishes anal intercourse from father, or 'pedicatio'. Fantasies of 'pedicatio' are developmentally normal; homosexuality is a regression from and defense against such fantasies because of the fear of mother's vengefulness. Three types of homosexuals are described: the pederast who chooses boys for his partners, identifies himself with the boy and loves him (self) as a good mother; equals who alternate playing the role of mother, who may be dominated, feared, or completely accepting; and the boy who wishes to be loved by an older man representing the 'good mother' who loves him and his penis. In all homosexuals the basic motivation is the same: to achieve control of the fear of the mother. Relationships to both parents are distorted, but the prime genetic issue is the threat from mother.