I don’t think the step- relations are to hide incest. I think it’s a lazy way to create situations where two people are alone together. Otherwise you’d have to go to tired tropes like pizza delivery, or visiting plumber, etc.
I think there is a HUGE leap between imaging that you had an attractive step sibling vs it being you’re actual sibling.
I think most people could fantasize about that hot girl from your science class suddenly living in the next bedroom over. I think most people have near 0 interest in hooking up with their actual family.
I don’t think the step- relations are to hide incest. I think it’s a lazy way to create situations where two people are alone together. Otherwise you’d have to go to tired tropes like pizza delivery, or visiting plumber, etc.
But that would work just as well if they were actually related.
I think there is a HUGE leap between imaging that you had an attractive step sibling vs it being you’re actual sibling.
I think most people could fantasize about that hot girl from your science class suddenly living in the next bedroom over. I think most people have near 0 interest in hooking up with their actual family.