A young lady in the mountains meets a young man, they fall in love and are planning a wedding. Her dad takes her aside and says, "Honey, you can't married him he is your brother." In a few months she meets another young man and about a year later they plan to marry, her dad take her aside and says, "Honey, you can't married him, he is your brother."
About a year latter she meet a young man from another state and they fall in love and plan to marry, again her father takes her aside and says, "Honey, I am so sorry but you can't marry him, he is your brother, too." Well the young girl is heart broken and crying. Her father leaves the room, her mother comes in and says, "Honey, dry your tears, and put a big smile on your face, and marry this young man. It ok because your daddy is not really your daddy."