But she abandoned her child when the youngster was just eight years old and left her for Gibson to raise.
It is alleged he then started to have a sexual relationship with her in August 1993 – while working as a Hebron and Union Township police officer – which lasted for ten years.
According to 10TV, the pair now have three children, a 10-year-old, 7-year-old and 19-months.
It is believed that nobody was aware of the children Gibson had fathered.
Police officers were first alerted to the case in May 2011 following a child support enforcement hearing when officials realised the girl was just 15 when her first child was conceived.
Gibson and his alleged victim had applied for custody of their children.
He was charged with two counts of corruption of a minor, one count of R*pe, one count of gross sexual imposition, five counts of sexual battery and one count of unlawful sexual conduct with a minor.