this conversation has gotten off track and i have contributed to that.....sorry!
you are still "biologically" heterosexual
that's a stretch dan! i am not my body. it's merely a host, a vehicle for for my spirit emotions and psyche. without those, my body is a dead idea. i am not one component of my being. the 'you' of me is far more complex than that.
i don't argue your point that the ultimate purpose of the egg and the sperm are to propagate the species; but the prefix hetero simply means unlike, different.
your body is still "biologically" predisposed for breeding
that's a statement i can agree with. and that can only happen naturally through hetero sexual contact, or artificially through insemination in utero.
the sole primary function of the penis and the male orgasm is so the male can pass his genetics on and impregnate females
what about urination? that precedes the ability to generate offspring. so wouldn't that be primary? the ability to regenerate develops at a later stage making orgasm penultimate.