From Priapus’ plump phallus to Shiva’s singular sexuality, humans have a rich history of fascination with sex. In Classical Antiquity, the Greeks and Romans crafted innumerable erotic vases and sculptures. As you can see from the vase in the photo above, they were not especially prudish! The Japanese, Peruvians, Chinese, and numerous other cultures made erotic artwork, and the Indians produced a helpful sex guide called …