Macaulay Culkin father of Michael Jackson's son?

Home Alone star Macaulay Culkin thought to be biological father of Prince Michael II

Just when we thought the Michael Jackson saga couldn't get any weirder, gossips in America have started claiming that Macaulay Culkin is the biological father of Michael's son, Blanket.

News broke this weekend that the Home Alone star, a good friend of Jacko's, provided the sperm sample that produced Prince Michael II, better known as Blanket.

'It is well known Jackson and Macaulay shared a unique bond,' The Sun quotes a source as saying. 'Now rumours are spreading like wildfire that Macaulay, who Jackson nicknamed Mack, is actually Blanket's biological dad.'

Culkin, seen here with Michael when he was just a kid himself, famously testified for Michael when he was accused of child molestation and has always been a supporter of the singer. Friends say Jacko asked him to donate sperm so he could complete his 'perfect family' and that Culkin was only too happy to oblige.

'This isn't just chitter-chatter, even Culkin suspects he's Blanket's father,' continues the source.

'So many names have been mentioned as prospective dads, and this is probably the wackiest yet.

'But Jackson and Culkin were best friends. He was one of the few people Jackson really trusted and Mack never let him down.

'Really, Jackson idolised him - that's why he asked Mack to donate sperm.

'Deep down, I think he always wished Mack was his son. Creating Blanket was the next best thing.'

So far, Macaulay - now 29-years-old - has refused to comment on the story.