A older sister returns home after she is deserted by her husband. She does not want to decide things or face life's many choices and surrenders that power to her younger brother. He discovers her sexuality and needs for affection.
Sallie loses her parents and gains a guardian. She soon decides that Daddy Bill who is not her real daddy will serve quite well as a substitute boyfriend and with none of the problems of starting a strange relationship. She thinks she will be able to control him with little difficulty but 18 year old virgins are short on experience.