Beth Ann Chester, a teacher in the Moon Area School District, has admitted to having sexual intercourse with a 14-year-old student, Moon police said today.

Beth Ann Chester

Ms. Chester, 26, is scheduled to have a preliminary hearing tomorrow on nine charges that she sent lewd text messages and nude photos of herself to the boy.

Moon police Chief Leo McCarthy said today at least one additional charge of sexual assault will made against Ms. Chester when she appears for her preliminary hearing.

"She waived her Miranda rights and admitted to having sexual intercourse with the boy in her car," Chief McCarthy said in an interview this morning.

He said the sexual encounter happened in a school parking lot after an activity. Moon detectives were trying to determine the date.

"At the absolute minimum, there will be one new charge against her," Chief McCarthy said.

Ms. Chester, of Scott, submitted a letter of resignation to the Moon district on Dec. 27. But she remains on the public payroll because the school board has yet to meet on personnel changes, the district solicitor said.

More details in tomorrow's Pittsburgh Post-Gazette.