I know, I know, this is a very controversial issue for some people, so please don't flame me!
When I interviewed Harold Norse at his place back in 2001 he was absolutely convinced B was bisexual, and he explained to me that story -the one he also published somewhere- where B would show him his pecker and asked Norse to show his in return.
Then we have the infamous Notes of a Dirty Old Man story where he screws a man in the ass thinking he's a woman.
so, what's your take?