Poseidon and Aphrodite

The Greek goddess Aphrodite is the representative of birth, pleasure, love, and passion. Aphrodite has an affair with the god of war Ares despite being married to Hephaestus. The god of sun Helios witnessed the two lovers having sex in Hephaestus' bedroom. Hephaestus was told of the affair, and the god devised a scheme to capture them in a practically invisible net. The following time Ares and Aphrodite interacted sexually, they were caught in the net. The gods were then all invited into the bedchamber by Hephaestus to mock the imprisoned adulterers.

Poseidon fell in love with the goddess as soon as he laid eyes on her. The sea deity then advised that Ares should cover the cost of the wedding presents that Hephaestus had given to Zeus. Poseidon volunteered to act as guarantor, promising to pay the debt if Ares fell behind and to wed Aphrodite in the process. Hephaestus was still in love with his wife and didn't truly desire a divorce, so he never brought the subject up again. Ultimately, Ares can not pay the debt. Poseidon and Aphrodite had a relationship. They have two daughters, Rhodos and Herophilos.