@Jack79: I can see where you’re coming from. Peoples’ naughty bits have a lot of cultural baggage attached (as well as biological) and I can understand why that is hard for some people to get past.
Perhaps if I explain it like this, it might clarify somewhat (although I’m not trying to convert anyone – just explain my view). In strictly physical terms, a penis is like a really big clitoris. (Or vice versa, you know what I mean.) They are both designed for the pleasure of the owner. For a partner, they are both fun, too. To me, they really are like different versions of each other. They’re different, yes, but it doesn’t make one more fun than the other, just fun in different ways. And to be perfectly blunt, if you are receiving pleasure and had your eyes closed, does the gender of the person attached to the fingers (or whatever) matter? To me, it doesn’t, because the sensations would be similar if not identical. Just like it is hard for you to wrap your mind around my assertions, it’s hard for me to wrap my mind around the notion that one set of organs is “untouchable” or “disgusting” because of their relative size or layout. They’re just bundled nerves.
I find, however, that the (hormonally-induced?) mental differences between men and women are what make the difference for me – I generally prefer males because of the way the mind works, not because of the genital arrangement. Also, there’s a cultural imperative for females to behave in some ways, and males to behave in others. If one of those sets of behaviors is vastly more attractive than the other, I can understand a strong preference for the gender that behaves a certain way.
Also, for me personally, a certain amount of androgyny is particularly attractive. Men with long hair and a quieter nature, and women with crew-cuts and a more imperitave nature are more attractive to me than those with more traditional gender displays. If I see someone whose gender I cannot read, that’s totally delicious to me. I realize I’m weird, and that most people would go mad trying to figure out “Izzat a man or izzat a woman? How can I know whether or not to hit on that person if I can’t tell?”—to me, it’s as though I know the individual parts don’t matter.
This is probably Too Much Information for such a public site, but oh well. I’m doing this for the good of humanity, right? :)