Sandusky will also have to register as the highest tier of sex offender in the state.
Jeffrey Sandusky pleaded guilty to all 14 counts, including solicitation of statutory sexual assault and solicitation of involuntary deviate sexual intercourse. Prosecutors will ask that he serve four to eight-years.
The charges involve incidents with two girls, one in 2013 and one in 2016.
Sandusky was set to go to trial next week in Centre County, Pennsylvania. but entered an early plea of guilty to all counts with the court in the hope of getting a lighter sentence.
Sandusky's pretrial guilty plea will likely ensure that he receives a "significant prison sentence".
Jeffrey was arrested at his mother's home in State College, Pennsylvania, after the father of the 16-year-old girl told police that his daughter had received text messages from Jeffery "asking her to take naked pictures of herself and send them to him", authorities told PEOPLE.
Both victims say Sandusky tried to use different excuses to try to get them to participate, saying at one point that he "had studied medicine" and another time that he believed that Victim No. 1 had shared a nude photo with her boyfriend, and he wanted to see it.
Centre County District Attorney Stacy Parks Miller said the plea deal ensures the victims don't suffer additional trauma by testifying at the trial.
He also will be evaluated to determine if he meets the criteria as a sexually violent predator as defined by the Sex Offender Registration Act, according to the DA's office.
Sandusky's defense attorney could not be reached for comment, CNN reported.