The allegations were made by the wife of one of his five adopted sons, as yet more accusers come forward against the former Penn State defensive coordinator.
Neither the person who made the complaint, nor the alleged victims, have been publicly identified but it's known that Sandusky adopted a total of six children with his wife Dorothy.
He has already been charged with abusing at least eight boys over a 15-year period, although since the case was publicized, more alleged victims have since come forward, as we reported here.
In the meantime the shocking details from the mother of one of his alleged victims emerged during a grand jury indictment.
She claimed that Sandusky regularly took her son off the Central High School grounds, despite the fact that she had not given any parental permission.
Then towards the end of the eighth grade, her son's behaviour changed and he began "lashing out" and becoming "mouthy and nasty at home."
She said she was alerted to the possibility that something was seriously wrong one evening when her son asked her how to look up 'sex weirdos'.
"He's been around all these kids and you really should go home and think about what this is going to do to your son and your family if you do that."Sandusky, who maintains his innocence, faces 460 years behind bars if convicted of 40 criminal counts involving the sexual abuse of eight boys beginning in the mid-1990s.The former football coach is free on bail, but has not been required to post any bail money.