VALPARAISO, Ind. -- A 16-year-old northern Indiana girl has been charged as an adult with four felonies and a 14-year-old has admitted juvenile charges of battery and confinement in connection with an attack on a 17-year-old special needs boy.

The Times of Munster reports the 14-year-old girl wept Monday as she admitted the charges from the attack and other charges from unrelated incidents. Monday. She faces a May 9 sentencing.

Police have said the two girls lured the boy to a home April 9, threatened him with a knife, then handcuffed and sexually battered him.

The Porter County Prosecutor's office filed adult felony counts of criminal deviate conduct, criminal confinement, intimidation and sexual battery and a misdemeanor battery charge against the 16-year-old on Monday. She's being held in the Porter County Jail.