According to a probable cause statement obtained by , the 36-year-old teacher had sex with a student about 60 times over an 18-month period.
Detectives said the alleged assaults began in January 2019 and continued through March 2020 while the victim was Sipera’s student.
Sipera admitted to offenses "which took place in multiple towns," the prosecutor's statement alleged.
The alleged victim — identified as a recent graduate of Camden Catholic High School — contacted Cherry Hill police about the relationship on August 6, leading to Sipera's arrest on Wednesday.
The former student alleged he and Sipera "had sexual intercourse inside of his vehicle at several locations throughout Cherry Hill, including a hotel parking lot, Cooper River Park, (Sipera's) residence and (Sipera's) mother's residence," the Courier Post reported.
Sipera was charged with second-degree sexual assault and endangering the welfare of a child.
She was also charged with sexual assault and endangering the welfare of a child for crimes that occurred in Gloucester Township.
Sipera was transported to the Camden County Correctional Facility where she is awaiting her first court appearance.
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The Cherry Hill school said in a statement that Sipera's employment as a teacher and coach at Camden Catholic "was terminated immediately."
Sipera was named Coach of the Year by the Women's Lacrosse Club of South Jersey, according to an online magazine produced by the school in 2019.
She was also once reportedly named the "coolest teacher" at the school where she worked.