Poseidon and Demeter
Demeter was the Greek goddess of grain, agriculture, harvest, growth, and nutrition. According to some traditions, Demeter was the Greek goddess most closely associated with the preparation of bread. Demeter is said to have grown and harvested grain in Sicily before teaching the human how to do so. Poseidon is one of the gods pursuing Demeter. However, Demeter once refused Poseidon's advances and sought to get away from him by transforming into a mare.
She then joined King Onkios' horse herd and vanished into the crowd. Even though she was a mare, she was still able to reveal her divinity. Poseidon recognized this and deceived Demeter by changing into a stallion and mingling with the herd. Then he made her mate with him under duress. Demeter was outraged due to the assault and she went into a cave in an attempt to purify herself.
Her absence resulted in the death of livestock and crops, causing global famine. She finally let the River Ladon wash her rage away. After having intercourse with Poseidon, Demeter gave birth to a daughter named Desponia and to Arion, a horse with the ability to speak human language.
