Robson claims Jackson and his inner circle "designed, developed and operated what is likely the most sophisticated public child sexual abuse procurement and facilitation organization the world has known."

In a graphic new complaint, choreographer Wade Robson seeks to pursue additional negligence claims against two companies formerly controlled by Michael Jackson that he says fostered nearly a decade of sexual abuse.

In 2013, Robson sued MJJ Productions, the late musician's entertainment company, and MJJ Ventures, which employed Robson and Jackson during the time of the alleged abuse. Two months ago, the choreographer brought on attorney Vince Finaldi, who filed the motion to amend after reviewing the case file. Its claims are disturbing.

"MJJ PRODUCTIONS and MJJ VENTURES were held out to the public to be businesses dedicated to creating and distributing multimedia entertainment by MICHAEL JACKSON, however, in fact, they actually served dual purposes," writes Finaldi in the complaint filed Friday. "The thinly-veiled, covert second purpose of these businesses was to operate as a child sexual abuse operation, specifically designed to locate, attract, lure and seduce child sexual abuse victims."

Robson claims Jackson and his inner circle within the two companies "designed, developed and operated what is likely the most sophisticated public child sexual abuse procurement and facilitation organization the world has known."

The choreographer says he first met the late pop star when he was five years old, after winning a "dance-a-like" competition run by MJJ Productions in Australia, where Robson was born. Two years later, his family took a trip to California because Robson's dance company was performing at Disneyland. Robson's mother contacted Jackson's assistant Norma Staikos to set up a meeting, according to the complaint, which describes Staikos as "a 'madam' or 'procurer.' " The family was invited to stay at Neverland Ranch, where Robson slept in Jackson's bed while his family stayed in separate guest quarters.

It was that weekend, Robson claims, that Jackson first sexually abused him. He was seven years old.

The graphically detailed complaint describes encounters ranging from French kissing to penetrative sex. Robson claims the abuse continued until he was 14, but became less frequent when he "began showing signs of puberty" and Jackson was "no longer as interested in him sexually."

In the following years, Robson would be called to testify in a civil suit brought by Jordan Chandler and in Jackson's criminal trial. Leading up to his testimony, he says the singer called him nearly every day to coach him and " 'brain washed' him into being a 'good soldier.' " He testified that no abuse had occurred.

Robson says he loved Jackson like a father and did not believe he was sexually abused until he entered psychotherapy following a nervous breakdown in 2012. He hasn't worked since.

Now, six months prior to the scheduled trial, Finaldi wants to amend the complaint to "rectify various flaws...simplify the complaint, and plead various causes of action/allegations that were omitted from the operate complaint."

Finaldi seeks to add several negligence claims to the suit, arguing the MJJ companies "breached their duty to take reasonable protective measures to protect minor children in their charge."

He's also seeking to withdraw the causes of action of childhood sexual abuse, sexual battery, assault and battery and negligent infliction of emotional distress, as well as allegations regarding the estate.

Attorneys for MJJ have not yet responded to a request for comment.

Trial is currently scheduled for March 13.