The 30-year-old woman originally pleaded not guilty to trying to extort money from 56-year-old Jason Frei, of Potter, who told investigators the girl's mother was trying to get $20,000 from him in exchange for helping him evade prosecution. In a deal with Cheyenne County prosecutors, the woman entered the new plea for a reduced theft-by-extortion charge.
Sentencing for the woman has been set for July 2.
Frei has pleaded no contest to negligent child abuse and attempted witness tampering. Authorities say he groped the girl while giving her mother a massage at his home in August.