There is research that is ongoing that may suggest you are wrong on this
Hello Stillajwexelder, this was not my opinion, it's just something that I read and thought it would be an interesting opinion to add to this thread.
As far as this topic goes, I don't really bother to think about it. I'm one who has no problem with people doing as they do - unless it's a downright violation of another person's life.
Does this mean that Adam or Eve were completely heterosexual? No. This simply means that there were no others of the same species from whom to choose for sex relation.
Very good point SFJ!