Details of NXIVM cult leader Keith Raniere's depraved practices have been revealed in a series of disturbing text messages he sent to his victims.

Raniere, 57, had asked one of his 'slaves' to groom another woman that could serve as his 'f**k toy' and recruited others for a sinister sex ring in which he was the 'grand master.'

The revelations were made in court papers filed by federal prosecutors in New York on Friday seeking to block his pretrial release.

Raniere had filed a motion early last week seeking bail on a $10 million bond and home detention with 24-hour supervision.

Prosecutors responded with an opposition asking the judge to keep Raniere behind bars because he is a flight risk, adding that 'no combination of conditions' would adequately protect the safety of the community, according to court documents obtained by DailyMail.com.

NXIVM cult leader Keith Raniere's depraved practices have been revealed in a series of disturbing text messages he sent to his victims in a new court filing

In a text message exchange with an unidentified 'DOS slave' Raniere tells her to groom a woman to be his 'f**k toy slave' that she could used to 'pleasure' him

He describes DOS as a 'secret growing organization' of woman which he 'commands'

Raniere has been behind bars since he was captured in Mexico and brought to the US in March.

He is accused of forming a barbaric secret society within NXIVM, a group that over the years has attracted a following of minor celebrities and wealthy people.

He has been charged with sex trafficking, sex trafficking conspiracy, and forced labor.

The alleged sex cult leader had claimed that DOS - a subgroup of NXIVM - 'is a group by and for women' and not created 'as a way of Raniere having access to women...'

But prosecutors argued that text messages sent by Raniere prove that there was a sexual component to the group and the some slaves would be recruited to have sex with him.

'I think it would be good for you to own a f**k toy slave for me, that you could groom, and use as a tool, to pleasure me…,' he tells an unidentified 'slave.'

The DOS slave responds: [H]uh? not disagreeing, just don't understand.'

Raniere then tells her to, '[g]et a slave…you're her master...'

In text messages sent in October 2015, he describes DOS as a 'secret growing organization' of women who 'want to be branded with [his] monogram.'

'I don't know well some of the people involved but I command them ultimately,' he states, later describing the role as an 'absolutely trusted commitment.'

The slave then responds: 'I want to be the one that worships your body.'

When asked if the slaves were meant solely for him or for him and the woman Raniere explains the two 'types'

Raniere describes the position of a sex slave as a '24/7 job'

That same day, Raniere expressed concern that the slave a was 'continuing to ask questions without committing to feeling to feelings or an opinion,' court papers state.

'Find a life slave and I'll tell you everything…,' he says.

The slave responds: 'What do you mean by life slave?'

'Someone who has a collateralized vow with you for life...'

When asked if the slaves were meant solely for him or for him and the woman Raniere explains the two 'types.'

'Both types are for us. One type is in the program: you are their Master I am with Grand Master...the other type are very select ones you use to heal us: likely being also of the first type.'

The suit also reveals how Raniere was allegedly complicit with the psychological torture of another young woman by ordering her to be confined to a room for a year and half to 'heal' from her 'breach.'

Raniere threatened to expel the woman, who was undocumented, from the country if she did not remain in the room.

Raniere described the group as a 'secret growing organization' of women who 'want to be branded with [his] monogram'. Above Sarah Edmondson shows the brand she received while she was in the cult

Smallville actress Allison Mack (pictured in May) also is charged with helping Raniere in the scheme. She agreed to cut all ties with the cult and Raniere as a condition of her $5 million bail

The woman finally left the room and Raniere had her driven to the Mexican border and ordered her to walk across without any money or identification, papers reveal.

Smallville actress Allison Mack also is charged with helping Raniere in the scheme. She agreed to cut all ties with the cult and Raniere as a condition of her $5 million bail.

In the court papers, Raniere's team of lawyers renewed claims that the alleged victims were never abused.

'Through this case, the United States Government seeks to curtail the ways in which independent, smart, curious adults may legally search for happiness, fulfillment and meaning,' the papers state.

'By condemning (the group) as a criminal enterprise and the teachings of Keith Raniere as fraudulent and criminal, the Department of Justice has made itself the morality police.'

If Raniere goes to trial, his followers will testify that his teachings actually 'improved their lives or gave their lives greater meaning,' the papers add.

A judge has set an October 1 trial date.