Neighbor's Daughter

Son:"Daddy, I fell in love & want to
date this awesome girl!"
Father: "That's great son. Who is
she?"
Son: "It's Sandra, the neighbor's
daughter"
father: "Ohhh I wish you hadn't
said that.
I have to tell u something son, but
you must promise not to tell your
mother.
Sandra is actually your sister.
"The boy is naturally bummed out,
but a couple of months later ...
Son: "Daddy, I fell in love again n
she is even hotter!"
Father: "That's great son. Who is
she?"
Son: "It's Angela, the other
neighbor's daughter."
Father: "Ohhhh I wish you hadn't
said that.Angela is also your
sister."
This went on couple of times and
the son was so mad,
he went straight to his mother
crying.
Son:"Mum I am so mad at dad! I
fell in love with six girls but I can't
date any of them because dad is
their father!"
The mother hugs him
affectionately and says: "My love,
you can date whoever you want.
Dont listen to him He isn't your
father."