Are Posh's ample assets going south?

But now it seems to have left Victoria Beckham positively deflated.

The Spice Girl stepped out at a television studio in Los Angeles this week looking much less perky in a certain area. Her once gravity-defying assets had moved in a direction more befitting to a 33-year-old mother of three.

This was in marked contrast to a year ago, when she was almost bursting out of a very similar dress in New York. Victoria was once forced to admit she had had breast implants in a court document for a libel trial.

It is unclear whether her new look is the result of further surgery.

Last night, her spokesman said: "I would say she is not wearing the push-up bra she normally wears, but I have not seen the pictures and I have no idea."

Posh was spotted in the dress as she cheered from the front row in LA as Spice Girls bandmate Mel B competed in the final of hit US show Dancing With The Stars.

Her bandmates' support was not enough however - Mel B lost the final the last night to Brazilian racing driver Helio Castroneves.

The Leeds-born pop star was one of three celebrities still in the running to take the crown in the American version of Strictly Come Dancing.

With the support of Victoria, Geri Halliwell, Emma Bunton and Melanie Chisholm, Mel B scored 55 out of a possible 60 points awarded by judges in the final against US singer Marie Osmond and Castroneves.

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The four whooped with delight as their band-mate did the splits mid-air, showing off a pair of sparkly black knickers.

The Spice Girls get-together came as the band, who are rehearsing for their reunion tour, surprised Mel B at her backstage trailer at the CBS studios in Los Angeles.

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Accompanied by British TV presenter Nicki Chapman, the girls screamed "Surprise!" as Mel B opened the door.

Once in their seats for the show finale, they clapped and cheered Scary's performance - and booed when judges criticised it.

Even the normally pouting Victoria broke into a smile as she watched her friend's routine.

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If Posh was harbouring any jealous thoughts about cracking the US entertaiment market she did not let them show.

Mel B danced the Cha Cha Cha - a dance the judges picked for the couple after they performed it in the series' first show - and a freestyle routine with her partner Maksim Chmerkovskiy.

After seeing her performances, Len Goodman, a professional ballroom judge, said her place in the show's final was "justly deserved".

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Talking about her routine, he said: "It was crisp, it was clean, it was precise. "For me, one or two funny bits in it but it was a great performance, a great opening for the night."

Bruno Tonioli, a film, music, video and theatre choreographer, said: "Melanie, I cannot believe what an accomplished dancer you have become in these past few months. Technically you have improved incredibly and your visual impact... I tell you, stunning."

But the third judge, Carrie Ann, a choreographer and dance producer, said Mel B looked "really good" and the routine was "fun", but she was expecting a bit more excitement.

Her comments were greeted with a chorus of boos from the audience and questions from fellow judge Mr Tonioli.

In the second routine, a freestyle dance, Chmerkovskiy ripped the Spice Girl's black jacket off to reveal a red basque while she posed on a wooden chair.

Ms Inaba said although she enjoyed the routine, the freestyle event was a chance to show the judges "how far you've come" and Mel B's routine "wasn't all I was looking for".

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As the Spice Girls booed her comments from the audience, the judge told Mel B: "I don't think it showcased all that you did over the past couple of months."

But Mr Goodman said: "I loved the lift, I loved that little bit of humour with the Cha Cha Cha, I liked all that work with the chair. I thought you came out and really did a great performance.

"For me, it was just slightly disjointed here and there, didn't actually sort of flow for me, but great job."

And Mr Tonioli added: "Spectacular lifts, cool, hip and you've taken risks, you put something in that we don't usually see, you tried it and you did a good job."

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