Update

MICHAEL Jackson pretended to have sex with a child mannequin in his bedroom, according to secret court documents.

The 14-year-old lad who says Jacko molested him claims the star giggled as he lay on top of the undressed tailor’s dummy resembling a girl of eight.

The cancer victim told a Grand Jury hearing held behind closed doors: “Michael was acting like he was having sex with it.

“He was like on his knees and trying to have sex with the mannequin.” And the boy's younger brother said in evidence: “The mannequin in his bedroom was a female child, African American, and she would be sitting at the back left of his bedroom. He picked it up and was pretending like he was humping it on the bed. He was on top.”

The California Grand Jury heard the boys’ statements last year — before deciding there was enough evidence to warrant putting Jacko on trial.

The evidence is meant to be secret but the transcripts were leaked to US website The Smoking Gun, which published them on Thursday.

They also include damning evidence from the lad’s mum and sister, ex-employees at 46-year-old Jacko’s Neverland ranch and a child psychologist who alerted cops to child abuse claims.

The boy also tells how Jackson plied him with alcohol — despite knowing he was still recovering from cancer. He said: “It wasn’t a good idea for me drinking because I only had one kidney.

“But he would just say, ‘It’s OK’. And he would just keep on telling me to drink because it would relax me.”

He also told jurors how the star wrote letters to him signing himself “Daddy Michael” — and that he called the kids names “like doo-doo head or apple head”. Jackson denies child abuse. Jury selection in Santa Maria is adjourned until next week while he recovers from flu.