I've had my prostate stimulated with a girls finger while she gave me oral sex (it has happened quite a few times) and it is the most powerful orgasm I have ever had, period. The load I blow during this is amazing too.
I had a girl friend that wanted to nail me with a strap on and being the open-minded type I said sure but I'll need to be drunk, really drunk. We never got around to it so my ass is a virgin.
The body was designed for pleasure folks. Drop your homophobic tendencies and open your minds. I am not, and never will be interested in men, but I have no problem with prostate stimulation.
I have done double penetration with a female too. That is an experience to watch a girl orgasm from that (if it is done properly.)