An Oakland County judge sentenced Kathryn Ronk, 30, of Birmingham to six to 15 years in prison on charges that she had sex with a student. She faces more charges in Macomb County. (Screenshot via WXYZ-TV)

A former teacher from Birmingham will spend from six to 15 years in prison for an ongoing sexual relationship with a 15-year-old student, WXYZ-TV reports.

Kathryn Ronk, 30, appeared stunned as deputies led her from the Oakland County Courthouse Tuesday after her sentencing, The Detroit News reports.

Ronk pleaded guilty last month to two reduced charges of criminal sexual conduct with a boy, a sophomore at Bishop Foley High School in Madison Heights, where she was a Spanish teacher until the boy's parents filed a complaint and the school fired her.

The sentencing agreement reached when she entered her plea called for anywhere from no prison time and 15 years behind bars.

" ... Because it is a woman, there seems to be a winking about what happened." – Circuit Judge Nanci Grant

Oakland County Circuit Court Judge Nanci Grant exceeded state sentencing guidelines that recommended 51-85 months, saying Ronk is a "very smart" and "intelligent woman" who should have known that sex with a student was wrong.

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When Ronk tearfully apologized to the victim and his family, the school and the community, and her family and husband, Grant said she welcomed her remorse, but wasn't swayed. Grant said she received a flurry of letters urging leniency that offered no consideration for the victim.

"I have never seen letters of support for a defendant with nothing about the victim," Grant said. "They were all about you and what you were going through. Poor you. To ignore a crime and a victim and an ongoing involvement in school, outside school, in a car. You did something you shouldn't have done."

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Grant also noted society's double standard, and said that if the case had involved a male teacher having sex with a 15-year-old female student, "there would be people here hanging from the ceiling trying to get every drop of blood."

"But because it is a woman, there seems to be a winking about what happened," she said.

Ronk's attorneys, James Thomas and Steven Lynch, also urged the judge to give their client the minimum sentence.

"There's no chance of this happening again," Thomas told Grant. "She will not be in a position to teach and will not be around children (after parole)."

More Charges in Macomb County

Ronk will be eligible for parole on that conviction in five and one-half years, but her legal troubles aren't over.The Oakland County charges stemmed from acts that took place in her Madison Heights classroom, but she faces additional charges in Macomb County.

The Macomb County Prosecutor's Office has charged her with rape, engaging in sexualy abusive activity with children, and providing alcohol to a minor. Authorities there said she had sex with the boy in his Macomb Township home, and in a parked car in Sterling Heights.

Additionally, she's charged in Macomb County with enticing the student to exchange sexually explicit images.

A March 31 trial date has been set on those charges.