Neutrino is entirely in favour of gay marriage.

It should be pointed out that he has very little understanding of the concept of marriage: since he's a cat he finds it hard to notice our hu-man gender differences, and since he's been neutered he finds it even harder to care. Or not harder, as the case may be. In fact, as his main (attempted) sexual partner is my wife's favorite teddy bear "Mr. Bear" one could call Neutrino homosexually married already - with the double-bonus that no-one can argue that the inability to reproduce is a factor, as both partners are now equally incapable.

But Neutrino is above such squalid personal concerns: he is noble enough to think not of his own issues and instead speak for all cats when he says that gay marriage is a good thing. Straight marriage is a good thing. Marriage between humans and pandas is a good thing, if pandas can be trained to provide catfood. Every cat has the inalienable right to two servants, not just one, and the inconsequential detail of exactly how said slaves fit together when they grunt at night - why, that's like demanding that all waiters wear a certain sort of sock. In return cats graciously offer themselves as permanent subjects of conversation, petting, and feeding for any couple who may care to care for them.

Cats are smart.