"Nobody knows what "causes" homosexuality any more than they know what "causes" heterosexuality. (Of course, there is far less interest in what causes the latter.) Overtly, the old psychoanalytic bugaboos are dead; there is no evidence, according to the Kinsey Institute, that male homosexuality is caused by dominant mothers and/or weak fathers, or that female homosexuality is caused by girls' having exclusively male role models. Furthermore, children who are raised by gay and lesbian couples are no more likely to be homosexual than children of heterosexual couples. Nor do people become adult homosexuals because they were seduced by older people or went to same-sex boarding schools... Though the causes of sexual orientation are unknown and the definitions fluid, the likelihood of converting a homosexual to a heterosexual orientation, or vice versa, is very slight. Some homosexual men and women voluntarily come for therapy to change from same-sex to opposite-sex partners, but it is not clear whether the limited "success" rate refers to a change in their feelings and the pattern of their desire, or just in their ability to consciously restrict their sexual contact to members of the opposite sex."