Court records say 39-year-old Todd Tackwell admitted on Tuesday that he broke the law and had what he described as a consensual relationship with the girl, starting in 2004 when she was 14. Under Nebraska law, people 19 and over cannot have sexual contact with people under 16.
In September Tackwell pleaded no contest to sexual assault of a minor. Authorities say Tackwell had rented the basement of the Lincoln house where she lived.
He was convicted of a similar crime in Pleasanton, Calif., in April 2012. She testified against him.