Under the name of Callithyia,
The daughter of the river god Inachus, Io was a priestess at one of Hera's temples. Zeus fell in love with her and seduced her. When Hera learned about Zeus's behavior, she turned the girl into a white cow. In some versions of the myth, it was Zeus who transformed Io into the cow, to conceal her from Hera.
The story goes that Zeus turned Io into a white cow to hide her from Hera, a vengeful goddess. Hera had her husband Argus betray her twice, so she was angry and enraged.
According to some stories, Zeus then turned Io into a heifer (a young female bovine who has not yet given birth) in order to hide her from his wife; others maintain that Hera herself transformed Io.
Before his marriage to Hera, Zeus consorted with a number of the female Titanes (and his sister Demeter). These liaisons are ordered by Hesiod as follows: (1) Metis; (2) Themis; (3) Eurynome; (4) Demeter; (5) Mnemosyne; (6) Leto.
Suffice it to say that Zeus was constantly involved in extramarital affairs. Throughout the various and sometimes contradictory myths composed by Greek authors, there are at least 20 divine figures with whom he consorted, and about twice as many mortals.
Zeus finally became enamored of the goddess who was to become his permanent wife — Hera. After courting her unsuccessfully he changed himself into a disheveled cuckoo. When Hera took pity on the bird and held it to her breast, Zeus resumed his true form and ravished her.
Ganymede (or Ganymedes) was a young man from Troy. His beauty was unparalleled and for that reason, Zeus abducted and brought him to Olympus to serve as his cupbearer and lover. Ganymede's myth is an important step in the history of homosexuality.
Zeus was known in his time as much more than the father of the gods. He was also a womanizer, and as such, he fathered many, many offspring!
Zeus fell in love with Io and seduced her. To try to keep Hera from noticing he covered the world with a thick blanket of clouds. This backfired, arousing Hera's suspicions. She came down from Mount Olympus and begain dispersing the clouds.
In Greek mythology, Lycaon (/laɪˈkeɪɒn/; Attic Greek: Λυκᾱ́ων, Attic Greek: [ly. kǎː. ɔːn]) was a king of Arcadia who, in the most popular version of the myth, tested Zeus' omniscience by serving him the roasted flesh of Lycaon's own son Nyctimus, in order to see whether Zeus was truly all-knowing.
Turns out Cronus had overthrown his dad, and he feared his son was a chip off the old block. One of those who sheltered the infant Zeus was a mountain nymph called Melissa. She cared for the baby and fed him milk and honey.
"The story is told that Zeus was nursed by a goat there [Aegion (Aegium) in Akhaia (Achaea)], just as Aratos [3rd B.C. poet] says : 'Sacred goat, which, in story, didst hold thy breast o'er Zeus'; and he goes on to say that 'the interpreters call her the Olenian goat of Zeus,' thus clearly indicating that the place is ...
Unfortunately, Zeus constantly cheats on Hera and he has done it over a hundred times, but in the end Hera always forgives him. But that does not make her angry and mad. This anger then goes to his sons and daughters as she takes her anger out on the children he has with the other mortals and deities.
p. 40.) She is commonly described as a daughter of Inachus, the founder of the worship of Hera at Argos, and by others as a daughter of Iasus or Peiren. Zeus loved Io, but on account of Hera's jealousy, he metamorphosed her into a white cow.
Zeus and Metis
His first and favorite lover was Metis, a Titan goddess and mother of Athena.
Aphrodite later and of her own volition had an affair with Zeus, but his jealous wife Hera laid her hands upon the belly of the goddess and cursed their offspring with malformity. Their child was the ugly god Priapos.
Impregnation by Zeus
Nonnus classifies Zeus's affair with Semele as one in a set of twelve, the other eleven women on whom he begot children being Io, Europa, Plouto, Danaë, Aigina, Antiope, Leda, Dia, Alcmene, Laodameia, the mother of Sarpedon, and Olympias.
In his private life Zeus was quite the lothario, fathering an unbelievable number of around 100 children with many different women (but don't hate him too much – it's just a myth, after all). Of this 100, he fathered a mix of sons and daughters, many of whom were gods and goddesses, and some became great leaders.
Perhaps partly because of the strange circumstances of her birth, Athena is often cited as Zeus's favourite child. He also greatly admired her strength of character and fighting spirit. Some believe Athena was Zeus's first born child, which might, somewhat unfairly, suggest why he chose her as his favourite.
Hera. The most famous of Zeus' wives, Hera was also the sister of the father of the gods, and the goddess of women, marriage, family, and childbirth.
Seven wives of Zeus
According to Hesiod, Zeus had seven wives. His first wife was the Oceanid Metis, whom he swallowed on the advice of Gaia and Uranus, so that no son of his by Metis would overthrow him, as had been foretold. Later, their daughter Athena would be born from the forehead of Zeus.
Zeus slept with his own daughter, Persephone, because she was there.
Who did Zeus marry? His sister Hera was the first and only to whom he was married, but that didn't stop him from fathering children with all and sundry, willing or not. Hera, the goddess of marriage and childbirth, constantly fought with Zeus throughout their marriage.
According to the Orphic myths, Zeus wanted to marry his mother Rhea. After Rhea refused to marry him, Zeus turned into a snake and raped her. She had Persephone with Zeus.