GARDEN CITY, N.Y. —  A former New York teacher who admitted having sex with a 16-year-old boy has been arrested on rape and other charges after prosecutors say she continued the liaisons in violation of a court order.

Heather Kennedy, a former Wantagh high school teacher, was arrested late Monday. She is charged with third-degree rape, committing a criminal sexual act , criminal contempt and endangering the welfare of a minor.

The 25-year-old was first arrested in March. She pleaded guilty to sexual misconduct and was awaiting an August sentencing.

Prosecutors got a tip Kennedy was still meeting with the boy and began watching her. The victim also admitted having sex with Kennedy five times since her guilty plea.

Kennedy's lawyer did not immediately return a call for comment.