...So no one is gonna poin5t out it's revealed the daughter is in fact the result of the futa mom impregnating herself? that that makes the daughter a clone? or that that means that technically this is all masturbation? (she is literally fucking herself XD)
While it's a very hot story, it would be hugely problematic not just from the phycological problems of a granddaughter and her grandpa having sex but there could be really bad genetic problems if she gets pregnant. But it's nothing more than the writer's fantasy.