The man begged one of his tormentors — who demanded he place his hands on her breasts and buttocks during the July 26 attack — to stop, it was reported.
He eventually escaped, running out of the car naked from the waist down and into a taxi where a cabbie helped him and drove him home to the suburbs, in Chicago.
The man had been walking in the 400 block of North Kingsbury early that morning when 25-year-old Cierra Ross allegedly pulled up to him and offered to give him a ride.
While she was driving, Ross pulled out a black revolver and ordered the man, who was in the passenger seat, to get in the back and have sex with her friend.
The woman in the backseat demanded that he take off his clothes and the man complied by taking off his shoes, pants and underwear before he was assaulted.
The two women also took $200 from the man, his credit cards and iPhone, according to a police report.