Probably. Consenting adults and all ...
Why not a Man and 6 year old while we are at it!?
Minors can't consent for themselves. You know, except in the cases of whether or not they want their parents to know they're having sex and killing babies.
Then bestiality following close behind.
Under this courts interpretation, polygamy would have to be legal.
Yeah, that's the ticket.
Now let me go outside and scream.
How about relatives? If one of them gets their tubes tied, then it is not about inbred offspring. Why can’t a father marry his daughter if they are “in love” and consenting adults. Why can’t a sister marry her brother.
Once you defy the traditional definition of marriage, you allow for anything and everything that does not “hurt” somebody else, such as pedophilia. Other than that, you have to allow for bigamy, polygamy, incest and communal marriages among large groups of people. All legal. All recognized, with benefits.