Sexual intercourse although basically was to make babies, doesnt mean that way these days. I can easily have sex with a women to make them pregnant and then go back to liking men if i was homosexual. If its a genetic error i would think other species out there wont do that stuff too. Or maybe you are just going by reproduction in which i think sex has become more than that lately.

If its natural i would think that anyone out there that likes anything else be it homosexuality, pedo, scat, and any other fetish out there to be genetically dysfuctional then? If thats so, how many people out there are screwed up?

EDIT: I agree though that since alot of the times(alot not all becuase saying all in anything is too far) the child does get hurt from pedo.