Police have arrested an MTA bus operator they say exposed himself to two young girls in Brooklyn this week.

Authorities said Sunday Matthew Wohlfahrt faces multiple charges, including public lewdness, endangering the welfare of a child, and grand larceny.

Police said the suspect exposed himself around 4:30 p.m. Monday after he stopped his minivan near 92nd St. and Ridge Boulevard in Bay Ridge and asked a 14-year-old girl for directions.

Just three days later, Wohlfahrt sat inside an SUV on Colonial Road and 78th Street in the neighborhood around 4:30 p.m. when he asked an 11-year-old girl for directions to a McDonalds. Authorities said the 11-year-old noticed he was exposing himself after he asked her to enter his car.

Sources said Wohlfahrt was off-duty when he exposed himself to the girls.

In a statement, the MTA said Wohlfahrt is a probationary employee and has been taken out of service without pay.