Five girls from broken homes were “shared” by Kabeer Hassan, Abdul Aziz, Abdul Rauf, Mohammed Sajid, Adil Khan, Abdul Qayyum, Mohammed Amin, Qamar Shahzad, Liaquat Shah, Hamid Safi and a 59-year-old man who cannot be named, Liverpool Crown Court was told.
One 13-year-old fell pregnant to one of the defendants and had an abortion, the court heard.
Another teenager recalled being raped by two men while she was “so drunk she was vomiting over the side of the bed”.
Rachel Smith, opening the case for the prosecution, told the jury: “The events and circumstances described by the girls are at best saddening and at worst shocking in places.
The court heard that some of the girls were raped and physically assaulted and some were forced to have sex with “several men in a day, several times a week”.
Smith said the girls — aged between 13 and 15 — were given alcohol, food and money in return for sex, but violence was also used.
The offences are said to have happened in Rochdale, Greater Manchester, in 2008 and 2009.
The court was told some of the defendants paid the girls and took payments from other men to whom they supplied the girls.
Hassan, 24, Aziz, 41, Rauf, 43, Sajid, 35, Khan, 42, Qayyum, 43, Amin, 44, Shahzad, 29, Shah, 41, and Safi, 22, are charged with conspiracy to engage in sexual activity with children under the age of 16.
They have all pleaded not guilty, along with the 59-year-old man.
He also denies two counts of rape, aiding and abetting a rape, one count of sexual assault and an allegation of trafficking within Britain for sexual exploitation.
The men, originally from Pakistan, knew each other. Two of them worked in takeaways on Market Street in the Heywood area of Rochdale.
Four of the other men worked as cab drivers at local taxi firms, one was a student and four were jobless.
The men were known to the girls by nicknames such as “Master” and “Tiger”, the court was told.
The girls would often spend their days “unsupervised by responsible adults”. They were not in school regularly and “drank and smoked and hung around with little to do”.
Smith said they were the “sort of children who were easy to identify, target and exploit for the sexual gratification of these men”.
She told the jury one of the older girls, who was 16 at the time, recruited younger girls for the men as well as having sex with them for money.