Jeremy Irons on Gay Marriage. Could a father marry his own son?

I am not aware of Jeremy Irons views on many issues, and he seems to be on the fence regarding gay marriage.

However, this is one thing that came into my mind some time ago. If all are allowed to marry whom they please, and there's no pro-creation, what's there to stop mothers and daughters, or fathers and sons marrying one another?

Marriage equality, will never be equal, until all can marry whoever, and whatever they want.

The interviewer tried to calms things down by suggesting that incest law would kick in, and trying to poke fun that Irons had said he was going to marry his dog. Yet, he couldn't get away from the fact that Iron's logic, is the proper one, and one that I think I will see suggested in my lifetime.

This is a theme that has been present in gay porn time and time again, and as in the case of other sexual promiscuity, I don't doubt that it will reach, if it hasn't yet, real life.