It's All Relative

Luke/Kronos was fighting Percy. Yet again.

"You will die here!" Kronos randomly yelled.

"Like Tartarus I will!" Percy snapped back at the Lord of time.

"Wait a second. I just realized something." Percy said backing off with a confused look on his face.

"You want to join me?"

"Yeah, no. Not that. But Zeus is your son, right?"

"Yes."

"And Hermes is Zeus's son, right?"

"Yes."

"And Luke is Herme's son, right?"

"Yes."

"So technically you're your own great-grandfather."

"Huh. Never thought of it like that."

"And you're trying to destroy your sons, who are also your grandfathers."

"Wow, I have one messed up family."

"Tell me about it. I'm being trained by my uncle and dating my niece."

"Incest much."

"Shut up!"

And so the battle continued.

AN: It does make sense. And Chiron is Poseidons brother, making him Percy's uncle. Zeus is Athena's father, making Annabeth Percy's niece. Still, Gods probably negate the gene issue or something.