MILWAUKEE -

A Catholic high school teacher in Milwaukee is charged with sexually assaulting a second teenager.

Prosecutors filed an amended complaint Friday against 28-year-old Megan Garland, accusing her of having sexual contact with a 15-year-old male student.

The complaint alleges Garland groped the student after he asked her for a ride home.

Earlier, Garland was charged with sexually assaulting a child after she was allegedly caught performing a sex act on a 14-year-old male student in a parked car.

Garland is a science teacher at Messmer High School. She was suspended by the school when the initial allegations were reported.

The Milwaukee Journal Sentinel reports Garland appeared in court Friday. A preliminary hearing is set for June 10.

Her attorney, Alex Flynn, said the defense is beginning its own investigation.