There are many inconsistencies in the game, here is just one. While the family moves out and after that at the aunt' s place they (mother and son ) initially act like they hadn't even seen each other nude yet.
Moreover, as if he couldn't touch her private parts much less have sex with each other.
But in the old house they already had anal sex and threesomes with both sisters.
It's like two different story lines spliced together arbitrarily.
If this ever gets rectified is unclear, i guess not. Maybe this is for the best since it would require to redesign either the old or new house scenes extensively. Inconsistencies or not, i' d rather like to see his games completed than perfected. Just wondered if this escaped everyone's attention.