Little did they know that their parents weren’t birth parents.
They were both adopted.
So they get married and their parents are ever so happy.
Then, when the baby is born, there are major dificulties.
The baby has a big distortion, towards the brain.
The guy and girl wonder how this could of happened, so they got tests to see if this ran in the family.
When they got their test results, they were both very shocked.
They were brother and sister!
They never could look each other directly in the face again.