simonegreen5001A substitute teacher at a public charter school in Washington, D.C., allegedly performed a sexual act on a student on her first day on the job, according to court documents.

Symone Greene, 22, has been charged with first-degree sexual assault against a minor in a significant relationship after she allegedly performed oral sex on a 17-year-old student in her class. According to charging documents, Greene, who taught English at Options Public Charter School, enacted the sex act on the 11th-grader behind the teacher’s desk while other students attended a pep rally Oct. 17.

Officials at the Northeast Washington school told NBC Washington Greene was hired through a Delaware-based contracting company.

“We are deeply concerned about what happened to one of our scholars,” the school said in a statement to WUSA 9.

According to the warrant, the student worked as an office assistant and helped Greene twice that day. The pair flirted and exchanged text messages during classes before their sexual encounter, the student told police. In one exchange, for example, the student asked his teacher if she was “kinky” to which she allegedly replied, “I don’t tell I show.”

Toward the end of the pep rally, the football player returned to the class and he asked Greene to perform the sexual act as many times as the number on his football jersey. According to the warrant, she then performed oral sex on the student whilesimonegreen4 he fondled her genitals.

The victim recorded the sex act on his phone without the defendant’s knowledge, according to the court documents, and later shared the video with fellow teammates and a friend.

Greene pleaded not guilty to the sexual assault charge at a court appearance Oct. 22. She was released on her own recognizance but has been ordered to stay away from the victim, any other minors, Options and any other schools.

She is slated to appear back in court on Nov. 18.