If by "a thing" you mean, did they have children, yes: Despoinê and Arion were their offspring.
Demeter and Hestia were her sisters. She also had three brothers Zeus, Poseidon, and Hades.
Yes, in Greek mythology, Demeter and Poseidon are siblings. They are the children of the Titans Cronus and Rhea. Demeter is the goddess of agriculture and harvest, while Poseidon is the god of the sea and earthquakes.
demeter
Demeter asked poseidon to make the most buteful animal the world has ever seen
Poseidon had relationships with multiple women such asMadusa and Demeter
no
Poseidon pursued her, and when Demeter would have gotten away as a mare, Poseidon turned into a stallion and mated with her, the children resulting were Despoine and Areion -this after Persephone was taken.
Demeter's siblings are Hera, Hestia, Hades, Poseidon, and Zeus
Yes. Poseidon presented Demeter with several horses to impress her.
Poseidon gave Demeter a magnificent white horse named Arion as a gift to win her love.
Hestia has five siblings: Hera, Demeter, Poseidon, Hades and Zeus.Hestia is related to Zeus, Demeter, Poseidon, Hades and Hera
Zeus, Poseidon and Hades.