Jinan, 18, who escaped the terror group's clutches, also claims they are running an international sex slave market where Christian and Yazidi women are traded like 'livestock'.

ISIS fighters abducted her when they stormed Yazidi villages in northern Iraq last year and held her prisoner in the terror group's stronghold of Mosul.

She miraculously escaped three months later and has now written a book in which she tells of her ordeal in excruciating detail.

Jinan describes how the extremists regularly took drugs and how the best-looking girls at slave markets were reserved for ISIS commanders or wealthy 'clients' from Gulf nations.

After she was kidnapped, Jinan was moved around between several locations before being bought by two men, a former policeman and an imam, in the ISIS stronghold of Mosul.

She said: 'They tortured us, tried to forcefully convert us. If we refused we were beaten... Sometimes they threatened to torture us with electricity.

'These men are not human. They only think of death. They take drugs constantly. They seek vengeance against everyone. They say that one day Islamic State will rule over the whole world.'

Once, in Mosul, she was led into 'a massive reception hall with large columns' where dozens of women were gathered. 

'The fighters circulated among us, laughing raucously, pinching our backsides,' she writes in 'Daesh's Slave' - using derogatory Arabic word for the jihadist group.

She said one man complained, saying: 'That one has big breasts. But I want a Yazidi with blue eyes and pale skin. Those are the best apparently. I am willing to pay the price.'

During such 'slave markets', she saw Iraqis and Syrians - but also Westerners whose nationality she could not make out. 

Once she was sold, fighters would visit the house where she and other female prisoners were kept daily. 

Traders acted like middlemen between the slave owners and the emirs who wanted to buy the women. 

The buyers would inspect the women like 'livestock', Jinan wrote in her book.

She heard one of the traders say: 'I will exchange your Beretta pistol for the brunette... If you prefer to pay cash it is $150. You can also pay in Iraqi dinars.'

Jinan's two owners spoke freely in Arabic in front of her - not knowing that she understood the language.

ONe night she heard a revealing and disturbing conversation about how the slave trade is run like a business.

'A man cannot purchase more than three women, unless he is from Syria, Turkey or a Gulf nation,' said one, named Abou Omar.

The other, Abou Anas, replied: 'It's good for business... A Saudi buyer has transport and food costs that a member of the Islamic State does not. He has a higher quota to make his purchases profitable.

'It is a good deal. the Islamic State increases its profits to support the mujahideen and our foreign brothers are satisfied.'

After managing to escape using a set of stolen keys, Jinan made her way back to her husband and is now living in a Yazidi refugee camp in Iraqi Kurdistan.

'If we go back home, there will be other genocides against us. The only solution is that we have a region to ourselves, under international protection,' she said.

Other women who escaped from Islamic State's clutches have told of how they endured unimaginable cruelty and sexual abuse at the hands of the ISIS fighters.

In May, a 17-year-old Yazidi girl described how she and her little sister were raped daily by a depraved jihadist before they were both sold at a 'slave auction' in Syria.

An even younger Yazidi girl known only as Bahar, 14, once told of how she was forced to undergo medical exams to 'prove' her virginity before she was sold to ISIS fighters in another twisted auction.

(dailymail.co.uk)