You town has one old superstition. Don’t mess with the big old oak tree next to the creepy old house. Anyone who does ends up fucking and knocking up a family member. But just doing it once to impress a girl wouldn’t actually do anything, right? Those things are just silly old superstations. Then why when you get home can you and your step-sister not stop yourselves. Drawn together by something neither of you can see. Straight into each others bodies, cream pie and all