SMYRNA, Ga. (AP) — Cobb County police say a high school teacher had sex with a 17-year-old student, who then threatened to tell if he didn’t pay her and give her a good grade.

Officer Michael Smith says both the teacher, 55-year-old Jonas Magdangal, and the student face charges. The tryst was reported to police by adult who found out from one of the student’s friends.

The Atlanta Journal-Constitution reports police say the Campbell High School teacher and his student had sex at a Smyrna hotel Dec. 31. Police say the girl then demanded money and an “A” grade to keep quiet.

The teacher was charged Friday with sexual assault. Smith said the girl is being charged with extortion. It’s unknown if either has an attorney.

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