A former Berks County high school English teacher has been arrested and charged with sending a video of herself engaged in a sex act, as well as nude photos of herself, to a 17-year-old student.

The Berks County District Attorney's Office said the Muhlenberg High School teacher, Stephanie France Luckey, 37, and the boy communicated with each other through a private Twitter account set up in April.

A forensic investigation determined Luckey shared nude and partially nude photos of herself with the student as well as a video of herself performing a sexual act, officials said.

The teen told detectives he and the teacher would kiss in her classroom after school.

The DA's office said Luckey admitted the allegations during an interview with detectives in July. She resigned her teaching position in August.

Luckey, of Richlandtown, Bucks County, surrendered to the DA's office on Tuesday to face charges of unlawful conduct with a minor, corruption of a minor, and sexual abuse.

She was sent to the Berks County Jail after she was unable to post bail set at $25,000 cash, according to court records.