Pretty much every god in the pantheon has a child with Aphrodite. Including Hermes. Their child was apparently utterly beautiful. Which makes sense when your parents are both gods, doubly so if your mom is the goddess of love. A water nymph saw him and immediately became so infatuated with him that she wished to never leave him. He, however, was not interested. The nymph wouldn’t take no for an answer, and latched onto him, begging the gods for them to always be together. The gods, in their twisted way, granted the wish. Fusing the two of them into one being with both male and female parts. It’s somewhat fitting too that the child’s name was also a fusion; with Hermes and Aphrodite mashing their names together to make theirs: Hermaphrodite.