Sex is a physical process that includes chemical reaction in it...
my123world Reviewed by my123world on . Who invented Sex ? Hi KWWH! I have come across a question, which I am finding difficult to answer. I just thought of random this :P. As the title says; Who invented Sex? Somehow the world is reproducing daily, via "sex" but how did they know how to have sex! How did the first couple to have sex, know that the man had to shove his penis up a females' vagina, in order to reproduce Rating: 5