The former teacher is accused of having had sexual relations with male student.
Kathryn Ronk initially refused the plea, however, on Wednesday, she pleaded guilty to two separate counts of criminal sexual conduct.
She is also facing fist degree counts as well as other charges involving a 15 year old student.
The woman said, “I’m so sorry for the victim and his family, for the school and the community, my family… and I’m so sorry for my husband.”
Ronk received 15 years with parole eligibility after accepting a plea in February for lesser charges.
According to authorities, women had engaged in sexual acts with a sophomore at Bishop Foley High School, Madison Heights.
She is also facing different charges in Macomb County. She was accused of having sexual relations with another 15 year old.
Ronk was wearing a plain prison jumpsuit upon entering the courthouse.
The investigation began in 2014 when the boy’s parents first discovered their son’s relationship with the school teacher.
Ronk was fired from school and she had been working in when the administration discovered that the women had been placed under investigation.
Ronk admitted to having sexual relation with the 15 year old during school hours, in different classrooms, as well as after hours.
She is also having charges of provided the boy with alcohol. She also stands accused of having enticed students to engage in sexually explicit image exchange.
Ronk’s sentencing is set for July first.