Yes, that made sense. But the relationship of their god-parents usually does not count to Demigods. Like any of Zeus's children is technically half-siblings to most god-parents in camp, and so that makes the rest of Hephaestus', Athena's, Apollo's, Dionysus' kids their nephews and nieces. That goes the same to Chiron, since he's Kronos's son, and half-sibling to Zeus, that makes them his half-grandkids. lol Its really complicated.