Lisa Lavoie, 24, was arraigned Tuesday in Hampden Superior Court in Massachusetts on three counts of aggravated rape and abuse and three counts of statutory rape.
Lavoie and a 15-year-old student were reported missing Feb. 16 and were found a week later. She was fired from her job.
Lavoie already pleaded not guilty in March to enticing a minor. Her attorney, David Hoose, says the new charges were not unexpected.
He says Lavoie is "very upset by the whole experience that she went through."
She is out on $25,000 bail.