A high school music teacher in Pennsylvania is accused of having sex with a student inside his office and repeatedly supplying two girls with marijuana edibles.

Jeremiah Triplett, a 30-year-old teacher at Archbishop Carroll High School in Radnor, is facing charges of institutional sexual assault, unlawful contact with a minor and other counts after police received a tip in March that a teacher later identified as Triplett gave pot-laced edibles — including brownies and gummy bears infused with THC, marijuana’s active ingredient — to two female students.

A subsequent investigation revealed that Triplett brought the drug-laced edibles, as well as “shopping bags” of mini liquor bottles, to school to share with the teens, Delaware County District Attorney Katayoun Copeland said. While having lunch in his office, which was frowned upon by school officials, one of the girls told police that Triplett brought them treats called “firecrackers,” or crackers topped with THC-infused Nutella spread, on up to 10 occasions, according to a criminal complaint.

Triplett also vaped nicotine products with the girls and they regularly blew exhaled smoke into each other’s mouths. During some of those exchanges, Triplett kissed one of the girls while grabbing her backside and telling her he couldn’t wait until she turned 18, Copeland said.

“[Triplett] used his position of trust and authority as a teacher to prey on students and endangered their health by providing them with THC infused food,” Copeland said in a statement.

One of the teens insinuated she had sex with Triplett when asked if their sexual contact went beyond kissing. The alleged sex acts took place in Triplett’s office, according to a criminal complaint obtained by The Post.

The girl also told investigators that she had seen Triplett’s penis and commented on its size. When asked by an investigator if she thought Triplett was a sexual predator, the teen indicated that she was now 18.

“This was the extent of Witness’ knowledge of the incident,” the complaint continued.

Triplett, who was scheduled be arraigned Wednesday, was placed on leave by Archbishop Carroll High School last month. He was also the musical director at St. Katharine of Siena Parish in Wayne prior to being placed on leave last month, WCAU reports.

“It’s heartbreaking for everybody involved,” one parent of a student at the school told the station. “All my kids have had contact. We’ve all had contact from the school and the parish and I never had any indication or any feeling whatsoever that anything wasn’t right.”

WCAU also reports that the Archdiocese of Philadelphia said in a statement that Triplett passed a criminal background check prior to his employment.

Anyone with additional information, including possible additional victims, is asked to call Radnor police at (610) 688-0503.