[Army Air Corps]

The same thing can happen if two men want to marry for similar spousal benefits.

You raise a very good point. There would be nothing to prevent two heterosexual men (or two heterosexual women) from having a marriage on paper so as take advantage of spousal benefits. It can be used as quite a dandy hustle for benefits.

[Conscience of a Conservative]

What stops one man and one woman (homosexual or heterosexual) from doing the same thing now?