A pervy Nassau cop who pulled over a carload of young women forced one of the passengers to touch him sexually in exchange for keeping the driver out of jail, authorities said.

Officer Garrett Mannerz, 34, stopped a vehicle carrying three women in their early 20s in East Meadow in February, said Nassau DA Kathleen Rice.

After giving the driver a sobriety test, he allegedly told the passenger that if she didn’t touch him, he would arrest the driver, Rice said.

Mannerz later allegedly called his victim for a date, but she recorded the conversation.