Originally Posted by Vengeance
Isshin being Keien, Ganju, & Kukaku's uncle doesn't create incest. It's a simple matter of saying that Isshin's sister or brother is their parent. I'm thinking Keien, Ganju, & Kukaku are Ichigo's cousins.
Read what I wrote again: "...father AND uncle."
AMA was saying he thought Kaien was Isshin's son.