The victim was giving evidence at the trial of nine men accused of grooming children and exploiting them for sex in Oxford.
She said she was raped by Mohammed Karrar in 2005 when she was 11, after she had gone to a flat 'to chill', but was given drinks and drugs, then raped.
According to the BBC, the men have denied 51 charges imposed on them, including rape and trafficking from 2004 to 2012.
In court the witness said she fell in love with Karrar and thought they were in a relationship.
She added that at the time she thought it was her choice to have sex and it was fine, but years on she could see she never had a choice.
She said she was also introduced to other men and told to perform sex acts on them.
The witness is one of six alleged victims in the case and, like one of the others, she claimed she was forced to have an illegal abortion in a back-room in Reading.
The trial is expected to last until April. The defendants are all in custody, who include Kamar Jamil, 27, Oxford; Akhtar Dogar, 32; his brother Anjum Dogar, 30; Assad Hussain, 32; Mohammed Karrar, 38; his brother Bassam Karrar, 33; Mohammed Hussain, 24; Zeeshan Ahmed, 27 and Bilal Ahmed, 26, the report added.