A young woman, giving evidence at the Oxford sex exploitation trial, said she was driven to High Wycombe up to three times a week to have sex with up to seven men.
She was also abused with "toys" and gang raped, the jury heard.
Known as Girl 4 as she cannot be named, she said: "Anything from biting, pulling. I have had candle wax poured on me.
"I have been horse-whipped, I have been cuffed, and I have been tied with a shirt tie."
The witness claims she was raped and sold for sex by brothers Mohammed and Bassam Karrar between the ages of 11 and 15.