Wow, comments really escalated that. Not all brocon/siscon things are incestuous my dudes, it can be a matter of obsession without taking it into the bedroom, and it can also be a matter of "ownership," like a selfish brat who wants all the attention to herself. You're not gonna say a dad who's depressed his daughter suddenly got a boyfriend is automatically wanting to sleep with her, right? So don't automatically assume the same for siblings.