The Church and unconventional relations

IT has been the constant teaching of the Church that a marriage between two baptized persons once ratified and consummated (ratum et consummatum), cannot be sundered by any power on earth. It has also taught that sexual relations between unmarried persons are objectively wrong — sexual congress being confined to persons who, by the bond of marriage, commit themselves to each other for a lifetime, the full physical consummation of covenanted love.

It has also taught that sexual acts between persons of the same sex, though mutually consenting, are essentially "disordered," meaning that they pervert the conjugal act that should involve spouses bound together in wedded love and open, in principle, to new life.