News Image Paris Hilton has today denied reports she has had a boob job, according to a source.

The American hotel heiress was subject to rumours of cosmetic surgery after her breasts appeared to be substantially larger at a recent photo shoot, reports Sfgate.com.

But, Paris has denied the reports, claiming the look was achieved by a new push-up bra prototype from her underwear range, the website states.

A representative told the source: "Paris has never had plastic surgery."

It has also been announced this week the Simple Life star will be traveling to the UK later this year to film her new show, Paris Hilton’s Best Friend.

Meanwhile, former Beverley Hills 90210 star Tori Spelling has this week admitted to breast enlargement surgery.

The 35-year-old told the Sun newspaper she had a boob job when she was in her 20s.

She added she has had "two procedures probably every other women in Hollywood has done".ADNFCR-1234-ID-18745605-ADNFCR