2009-02-16 13:36:12 -

Catwalk beauty KATE MOSS reportedly shocked onlookers at a recent photoshoot for top designer ROBERTO CAVALLI - by downing beers and sitting on a male model's lap.
The normally demure British supermodel was said to have drunk several lagers before plonking

herself onto the stunned man's thighs - and then leaving the studio as soon as the pictures were taken.
A source tells the New York Post, "She demanded a beer and then proceeded to finish off beer after beer after beer while she was getting her make up done. When it was time for the shoot, she sat on the male model's lap but ignored him - didn't say one word to anyone - and then, when her pictures were done, walked out." Moss last week (begs09Feb09) refused to comment on growing rumours she is expecting her second child, but tabloid reports over the weekend suggested the model has confirmed to close pals she is three months pregnant.