New pictures of a busty Hilary Duff have re-ignited rumours that the star has gone in for a boob job.

The actress was snapped showing off some cleavage yesterday whilst shopping at Fred Segal in West Hollywood.

And her assets look like they have been considerably enlarged compared to a couple of years back, despite the fact she's lost weight thanks to regular gym sessions.

Hilary looking swell yesterday (left) and in flatter times (right)

Hilary recently shot down reports that she is engaged to ice hockey boyfriend Mike Comrie.

"No, no I am not" she said when quizzed about the subject at the 5th Annual Runway For Life event in L.A. over the weekend.