The boy's dad said: "First of all, she's a schoolteacher.
"To get aroused by a child basically you have to be a sick individual.
"I was told by the school that she had a 'hold' on him and he was not cooperating so basically they can't do nothing with it."
He also revealed that he found out about being a grandparent when an anonymous caller asked if he knew he was a grandad.
Charges were filed only last week after police learned that Cross and the teen had a child together in 2015 that was kept secret until a tipster called the dad father and broke the news.
Cross is currently being held in the Summit County Jail under $100,000 bond.
Source : http://www.dailystar.co.uk/news/latest-news/636961/teacher-sex-pupil-Laura-Lynn-Cross-Ohio-USA-grooming-swimming-pools-students