Panto

Its the end of act 2 of the Panto, so as tradition dictates . . . .

The Principal Boy (who is actually a girl) get engaged to the Principal girl (who is also a girl) .
The Dame (who is a man) gets engaged to the baddie (who is also a man) .
The Faerie and the Demon do good and bad deeds.
but in the end everyone is happy and sings a big chorus number to show it.

And we wonder why the Church is confused about Gay marriage :-)