In a police interview shown to jurors as her evidence, the woman said she suffered repeated abuse at the hands of the siblings over the following months, including having her head smashed against a wall, being hit over the head with a chair, forced to sleep on the floor, and threatened with being thrown from a 10-storey building.
Terrified to resist, she was occasionally made to stand outside on a balcony as punishment, the court heard.
Jurors were also told Mandy Leacock took control of the woman's bank card, buying clothes, a gym membership and a £300 ($520) watch.
She told police: "It was horrible. I felt humiliated all the time, but I didn't cry because I got used to it."
The woman, who cannot be named for legal reasons, told police she moved in with Leacock because she "felt lonely and wanted to be loved again" after a previous abusive relationship.
Prosecuting, David Povall said: "She was living in a state of fear, oppression, being bullied and controlled."
She finally managed to get free when she sought medical help after speaking to someone in a shop.
Leacock, of Paddington, is on trial at Southwark Crown Court accused of two counts of rape and two of assault causing actual bodily harm.
Jurors were told Mandy Leacock was not on trial but had previously pleaded guilty to assault causing actual bodily harm, including pulling the woman's hair and using bleach on her.
- Originally published on Telegraph UK