IMO, when it comes to higher cognitive function such as language, self-awareness and a sense of right and wrong, I firmly believe more in "nurture" (good parenting) over "nature".

Sexual drive however is a function of the more primitive part of the brain, instinctual if you will. How old were you Slab when you first discovered that looking at girls gave you a funny, nervous, awkward feeling inside? Did you feel you were in control of theses feelings, or did they just sorta' happen?

Are you telling me that you learned to like girls from watching your parents, older siblings, or neighbors across the street?

I bet if you thought about it for a minute, you'd realize that the crush you had on Mary Anne in the 5th grade probably would have happened regardless whether you were raised by Adam and Eve or Adam and Steve.