SOUTH COVENTRY TWP., Pa. (WPVI) -- Charges have been upgraded against a Chester County teacher who allegedly had a sexual relationship with a student.
Melissa Bonkoski, 38, was a science teacher and softball coach at Owen J. Roberts High School. She was arrested earlier this month for inappropriate contact.
She is now accused of actually having sex with the 16-year-old boy.
The district attorney's office said the investigation began when the victim's girlfriend discovered suspicious texts on his phone.
"Rule No. 1 if you are a teacher or a coach: Do not have sex with a student. Breaking this rule is a one-way ticket to arrest, losing your job, and prison," said District Attorney Tom Hogan.
Bonkowski, of Stowe, Pa., resigned earlier this month.
Anyone with information is asked to contact investigators at (610)344-6866.
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Chester Co. teacher accused of sex with student