How are couples referred to in a same sex wedding?

In a same sex wedding ceremony, I often wonder how the wedding vows are put. For example, in the case of two males,is it “John, do you take Michael to be your lawful wedded husband”? and “Michael, do you take John to be your lawful wedded wife”? or is it both “husband” in the case of males, and both “wife ” in the case of females? Does it vary between different couples. Anyone know?

Also, I wonder how these people introduce their “spouses” to their friends, “This is George my wife”? maybe. A complicated world now being made even more complicated.