>But Phryne was a really beautiful woman, even in those parts of her person which were not generally seen: on which account it was not easy to see her naked; for she used to wear a tunic which covered her whole person, and she never used the public baths. But on the solemn assembly of the Eleusinian festival, and on the feast of the Poseidonia, then she laid aside her garments in the sight of all the assembled Greeks, and having undone her hair, she went to bathe in the sea; and it was from her that Apelles took his picture of Aphrodite Anadyomene.
Athenaeus of Naucratis XIII 590g
Notice that she is posing as in the painting by Apelles:
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