Creep gropes woman on NYC train stopped by Good Samaritan

A creep groped a woman on a Manhattan train — only stopping when a Good Samaritan intervened, authorities said Thursday.

The 26-year-old victim was standing on the platform of the southbound Q train at the 34th Street-Herald Square station around 5 p.m. Sunday when a stranger approached her and tried to strike up a conversation, but she ignored him, police officers said .

As the woman boarded the train, the man followed her and sat next to her before stroking her breasts, inner thighs and calves, police said.

The victim told the pervert not to touch her, and another passenger came to her aid.

That prompted the suspect to walk away from the woman, police said.

He stayed on the train to the Prospect Park station in Brooklyn, where he fled in an unknown direction.

No injuries were reported.

Police are looking for the suspect, who is described as a male in his late 20s, dark complexion, approximately 5ft 8, with a thin build and brown eyes. He was last seen in a black winter parka with a gray fur hood, jeans and red sneakers.