“The practical consequence of both of the teachings noted is to encourage homosexual promiscuity. Church members can engage in many short-term liaisons without raising questions about their standing in the church. We tend not to pry into one another's private lives. But if a man brings another man to church with him regularly, if they give the same address and show signs of mutual affection, then there is likely to be a scandal. The dominant effect of church teaching is to encourage secret, temporary liaisons without commitment and to discourage long-term fidelity.”