He said: “Daddy, I fell in love and want to date this awesome girl!” Father: “That’s fantastic, son! “Who is she?” Son responds: “It’s Sandra, the neighbor’s daughter.” Father: “Oh, I wish you had not said that. I have something to tell you, son, but you must swear not to tell your mother. Sandra is actually your sister. The boy is naturally depressed, but a few months later:

Our son: “Daddy, I fell in love again and she is even hotter!” Father: “That’s fantastic, son! “Who is she?” Son responds: “It’s Angela, the other neighbor’s daughter.” Father: “Oh, I wish you had not said that. “Angela is also your sister.” This happened several more times before the son became enraged and ran straight to his mother, crying.
Son: “Mom, I’m very upset at Dad! I’ve fallen in love with six girls, but I can’t date any of them because dad is their father!” The mother hugs him warmly and adds, “You can date anybody you want. “He is not your father!”