Posted by Jane Murphy Puh - who needs siblings, eh? As if Madonna didn't have enough to worry about at the moment, her younger brother Christopher Ciccone is set to bring out an unauthorised biography of his sister very soon. Some of the book's shock revelations are already starting to leak out. And among them is the claim that Madge once grabbed her pal Gwyneth Paltrow and kissed her full on the lips, during a New Year's party at Donatella Versace's house. Well, they are good friends and it was New Year, so I don't think we can read too much into that. Still, it's just the kind of titillating titbit that sells lots of books - so if Christopher has plenty more like that up his sleeve, I'm sure he's got a bestseller on the way. Madonna will be pleased. Picture: PA SEE ALSO: Madonna's shock marriage statement >> Are Madge and Guy divorcing? >> In pics: Madonna and Guy's marriage >> ...