User blog comment:Joeaikman/Wiki Half Blood Chapter 5 - Noah/@comment-25263388-20160201160319/@comment-4490782-20160201164600

Aphrodite is the Goddess of Love and Procreation and stuff. Eros would be more accurate for Jorn but he wasn't allowed to have children by Aphrodite. So Jorn (who's also *ahem* a bit of a trickster too) fits best into Hermes (who was fond of tricks).