Chapter 2:
22 .) And the rib, which the LORD God had taken from man, made he a woman, and brought her unto the man.
23 .) And Adam said, This is now bone of my bones, and flesh of my flesh: she shall be called Woman, because she was taken out of Man.
24 .) Therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh.
25 .) And they were both naked, the man and his wife, and were not ashamed.
Chapter 3:
6 .) And when the woman saw that the tree was good for food, and that it was pleasant to the eyes, and a tree to be desired to make one wise, she took of the fruit thereof, and did eat, and gave also unto her husband with her; and he did eat.
7 .) And the eyes of them both were opened, and they knew that they were naked; and they sewed fig leaves together, and made themselves aprons.
And all the stuff that followed.........still, good point. But I'm fairly sure they had not "known" each other prior to their being thrown out of the Garden..........can't say specifically, but pretty sure.
But that does give some thought to what the world would have/could have been