PHOENIX -- A former high school teacher arrested on child prostitution charges pleaded not guilty Monday morning.
Jerry Marfe, 54, was charged with two counts of prostitution with a minor after his arrest on Dec. 6.
Marfe was one of 111 people arrested in a massive prostitution and drug sting operation by the Maricopa County Sheriff's Office.
According to the sheriff's office, undercover video shows Marfe sitting down in a Tempe Holiday Inn with undercover officers he believes are 16-year-old prostitutes he met online.
According to court paperwork, Marfe asked the "girls" to participate in various sex acts for half an hour for $160. He reportedly asked one of them to wear her cheerleading uniform.
Marfe worked as a teacher in the Phoenix Union High School District for 27 years. He taught advanced chemistry at Betty H. Fairfax High School in Laveen and coached cross country, track and volleyball.
He resigned from his teaching position after the arrest.
Marfe also worked at Alhambra and Cesar Chavez high schools.
His next court date is Feb. 13.