Will legalization of same-sex marriage lead to the legalization of polygamy? Proponents of same-sex marriage dismiss the question, for if they ever did face it squarely, they would have to admit the truly radical nature of the case for homosexual marriage. The logic of the polygamy question is this–If marriage can now be homosexual as well as heterosexual, why must it be limited to two persons rather than three . . . or several? Proponents of same-sex marriages have dismissed this question as irresponsible, irrelevant, and inflammatory. The question is indeed controversial, but only because it demands to be answered. It is by no means irrelevant.