This might be more of an IMHO subject, but I’m looking for whatever might have been developed, compiled or decided at some authoritative level rather than Doper 'pinions. (Sorry.)
How do you formally address couples, especially married couples, of the same gender? I’m interested in general answers but the specific question on my mind is this: if for slightly humorous purposes you wanted to refer to “Mr. and Mrs. Smith,” how would you translate that to a male couple?