A south suburban Chicago woman is accused of participating in the rape of a Chicago man at gunpoint over the summer in the Near North Side.



Cierra Ross, 25, was arrested Tuesday and charged with aggravated criminal sexual assault and armed robbery for the alleged July 26 attack.



Police say a 33-year-old man was walking in the 400 block of North Kingsbury early that morning when Ross pulled up in a car and offered to give him a ride, the Chicago Sun-Times reports.



After the man accepted the ride, Ross is accused pulled out a gun and ordering the man to get in the back seat and have sex with her friend, according to Assistant Cook County State’s Attorney Amanda Pillsbury.



Pillsbury says the victim was ordered to take his clothes off and he complied by taking off his shoes, pants and underwear before he was assaulted, and told to place his hands on the woman's breasts and buttocks during the attack.



The man reportedly begged one of his tormentors to stop, but eventually escaped by 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, Pillsbury said.



The women are also accused of stealing $200 from the man, his credit cards and iPhone.



Authorities say the victim identified Ross, a mother of two, from a lineup. The other woman has not been charged.



Ross, a resident Olympia Fields who works as a Denny's waitress, has misdemeanor prostitution charges on her record. She was held in lieu of $75,000 bail.