Heh, I have said pretty much that to various people in RL before now. ;)

I've got Farkas down as bi while Vilkas is largely straight, and due to Farkas being an utter sweetheart and far too nice for his own good, he's had more than a few break-ups caused by dating someone who's pretty on the outside but not so much on the inside. Which Vilkas has had to console him over, and by this point, he's got very protective of his twin.