The Old Bailey has been told that the men deliberately targeted vulnerable young girls, often those living in care and with troubled and unsettled lives.
They found girls who were "out of control" and may already have been sexually abused.
They would frequently approach the girls while they were playing truant from school or out having an illicit drink. The men groomed the girls by offering them alcohol, or sometimes by simply offering the kind of attention they craved and that was missing from their lives.
They would hook the girls in by plying them with drink and often gave the girls drugs, including cannabis, crack and sometimes heroin, which they then became addicted to.
More top news
China's wild Panda population grew by 268 or 16.8% between 2003 and 2013 according to a nationwide survey on the highly endangered mammal.
Approaching Atlantic frontal systems will give a wet and windy night right across the UK with some heavy bursts of rain for everyone.
Police said 375 people attended a rally in Newcastle by the anti-Islam group Pegida, while 2000 people joined a counter-demonstration.