Michael Jackson's eldest children face an uncertain, bizarre future after their mother and his former wife Deborah Rowe reportedly confessed he is not their father.

Janet Jackson speaks for grieving family

Jackson's mother 'wants to keep kids'

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It's been reported Rowe, the mother of Prince, 12, and Paris, 11, told News of the World she was artificially inseminated by an anonymous donor.

It's also claimed she told how, despite Jackson's death, she does not want custody of the children and never expected to see them again.

It means Prince and Paris may now face a doubtful future, effectively without parents and the subject of a fight to find them a permanent and stable family home.

Rowe, who met Jackson when she was a receptionist at a Beverly Hills dermatology clinic where he regularly went for skin treatments, said that when she married Jackson, he was lonely but wanted children and she offered to have his babies.

Rowe - who claims Jackson wanted little to do with her after she had her second child - said she was "impregnated" like one of the thoroughbred mares she now keeps on her property, adding: "I was just the vessel. It wasn't Michael's sperm.

"I got paid for it, and I've moved on. I know I will never see my children again."

Fifty-year-old Rowe, who was divorced from Jackson after three years, also said they never had sex during the marriage.

Jackson's 'tragic joke'

Meanwhile, in other news about the star, it has been revealed his oldest son thought his dying father was play-acting when he collapsed on the living room floor.

Prince Michael Jackson stood "in a trance" as his father's personal physician tried to revive him.

"The horror of it all is that Prince thought his dad was just being his dad and clowning, but it was real, and he watched as they worked on him," Jackson family biographer Stacy Brown told the New York Post.

Nanny breaks silence

And Michael Jackson's former nanny has broken her long-held silence on the king of pop and his family.

In shock new revelations, the woman closest to him has said the first call she received from Jackson's family in the hours after he died was a demand for hidden cash that the relative was searching for.

Jackson's long-time nanny Grace Rwaramba, who was in London when he died of a heart attack on Friday, said in an interview that as she prepared to board a plane to fly home and comfort the orphaned kids, SHE got the call from one of the Jackson family, which shocked her to the core.

'No painkiller' before' Jacko death

In other developments, a lawyer for Michael Jackson's doctor says reports that the physician injected the star with a powerful painkiller before his death are "absolutely false", the Los Angeles Times reported.

"There was no Demerol. No OxyContin," Edward Chernoff, an attorney for doctor Conrad Murray, was quoted in the Times.

Dr Murray's role in Jackson's death has been the subject of scrutiny from members of the pop star's family.

Mr Chernoff said Jackson "wasn't breathing" and that Dr Murray "checked for a pulse".

"There was a weak pulse in his femoral artery. He started administering CPR."