If given the chance, most of us would not have sex with our stepmoms.True, but most can mean slightly over 50%, which can leave almost 50% who would.
That’s not just because many people have a deep and abiding respect for their parents’ relationships, but also because it’s just an icky thought.It's not an icky thought for everyone. What can happen is that if your stepmother was regularly present in your life from an early age, you might develop the Westermarck Effect when it comes to her.
Have sex with the woman who regularly beds down with your dad (or mom)? No! Gross! Let’s move on! Right? Wrong.Yes, wrong. How many people have been attracted to a sibling's lover/partner/spouse? How many people attracted to women have wanted a mother and daughter? Or sisters? How many people attracted to men have wanted a father and son? Or brothers? Plenty. And sometimes they are wanted back.