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 sister not stop yourselves. Drawn together by something neither of you can see. Straight into each others bodies, cream pie and all