Not to be outdone by fellow Twit Lindsay Lohan, Paris Hilton has posted her own baby pictures on Twitter.

The heiress has delved into the Hilton family archives and come up with a photo of herself looking like butter-wouldn't-melt as she and sister Nicky pose in their Halloween costumes.

In another snap, Paris appears alongside Granny Hilton in just a nappy.

Things haven't changed much.

Just last week, Lindsay was showing her Twitter followers pictures of herself as a chubby-chopped cutie.

More baby pics