A dancer at a Midtown strip club has alleged that she was raped Thursday night by a patron, police sources said.

The unidentified 22-year-old woman who works at Vivid Cabaret on West 37th Street near 6th Avenue told cops that while she was giving a private lap dance to a client around 8 p.m., the man’s friend entered the room, sources said.

The client’s friend then allegedly raped the woman, sources said.

The victim’s manager called 911 and the woman was taken to Bellevue Hospital, where a rape kit was administered, sources said.

Cops are investigating and no arrests have been made.