Writing at the Metro U. In the history of male masturbation, we learn that ancient Mesopotamian god Enki was the lord of semen and therefore the fertilizing of plants. Early Christians were said to eat semen as a communion ritual, as they believed it was the liquid embodiment of the soul. Semen became the Eucharist and Host of the body. Some of these Christians believed Jesus was the first to show us, at the Last Supper, how to consume his soul through oral sex.