Does penis size matter? To say that for men, at least, the answer is Yes, is an understatement of literally historic proportions. As far back as classical Greece, we have the story of Priapus, a god of fertility who was thematically defined by his shaft. In textual sources and artwork from the time, he is consistently depicted as sporting an enormous, bulbous phallus, so long and thick that it would stick right out from under his loincloth.