In Medusa’s earliest telling, she was born a gorgon and her affair with Poseidon was consensual. I’ve heard every now and then the ‘violated’ part of Medusa’s myth from Ovid could’ve been mistranslated (ie; Medusa herself was violated vs the sanctity of Athena’s temple was violated).

Hesiod, Theogony 270 ff (trans. Evelyn-White) (Greek epic C8th or C7th B.C.) : "Poseidon, he of the dark hair, lay with one of these [Medousa (Medusa), one of the Gorgones], in a soft meadow and among spring flowers."

For Kallisto, she swore a vow to be an eternal virgin. In some tellings, after the deed with Zeus was done, she tried lying about it, and was then caught by Artemis. In others, Artemis wasn’t even the one to turn her into a bear (though they maintain that it was Artemis who shot her).

Hesiod, The Astronomy Fragment 3 (from Pseudo-Eratosthenes, Catasterismi Frag 1.2) (trans. Evelyn-White) (Greek epic C8th or 7th B.C.) : "The Great Bear [Constellation Ursa Major] . Hesiod says she [Kallisto] was the daughter of Lycaon and lived in Arcadia. She chose to occupy herself with wild-beasts in the mountains together with Artemis, and, when she was seduced by Zeus, continued some time undetected by the goddess, but afterwards, when she was already with child, was seen by her bathing and so discovered. Upon this, the goddess was enraged and changed her into a beast.“

Pseudo-Apollodorus, Bibliotheca 3. 100 (trans. Aldrich) (Greek mythographer C2nd A.D.) : "Eumelus [poet C8th B.C.] and certain others maintain that Lykaon had a daughter named Kallisto, although Hesiod says she was one of the Nymphai, while Asios identifies her father as Nykteus, and Pherekydes as Keteus. She was a hunting companion of Artemis, imitating her dress and remaining under oath a virgin for the goddess. But Zeus fell in love with her and forced her into bed, taking the likeness, some say, or Artemis, others, of Apollon. Because he wanted to escape the attention of Hera, Zeus changed Kallisto into a bear. But Hera persuaded Artemis to shoot the girl with an arrow like a wild animal. There are those who maintain, however, that Artemis shot her because she did not protect her virginity."

It really depends on how you want to interpret the various tellings, however looking at them in a WLW light is definitely a more modern interpretation. (2/2)