Pictures in today�s Sun show Kate Moss looking extremely skinny as she arrived at Sir Paul McCatney�s 65th birthday bash.

The model looked pale and jaunt with the outline of her leg muscles clearly visible - An indication that the tiny-framed model has no fat on her legs.

According to Sun Doctor Carol Cooper, the fact that she is wasting away could be down to any number of things: "stress, depression, drugs and alcoholism."

Moss has never been a busty female, but now she�s completely flat-chested, with her ribs clearly visible.

There was also visible bruising to her right leg, an indication that she is malnourished.

Psychologist Deanne Jade from the National Centre for Eating Disorders said that these images would more than likely end up on pro-anorexia sites as she becomes a �thinspiration� to young girls who encourage each other to starve themselves.