It’s also important to emphasize that Sumerian men do not appear, at least in this earliest period, to have seen anything troubling about the idea of their sisters having sex for money. To the contrary, insofar as prostitution did occur (and remember, it could not have been nearly so impersonal, cold-cash a relation in a credit economy), Sumerian religious texts identify it as among the fundamental features of human civilization, a gift given by the gods at the dawn of time. Procreative sex was considered natural (after all, animals did it). Non-procreative sex, sex for pleasure, was divine.