Celebville was awash with bosoms last night, mainly thanks to the efforts of Kim Kardashian and Nicole Richie.

The pair both stepped out in dresses which showed off their, umm, pairs last night.

Kim squeezed her curves into a plunging black and white dress with cutout detailing, at a magazine launch party at New York's Capitale club.

kim kardashian

Meanwhile over the other side of town, Nicole Richie (remember her? We'd almost forgotten too) was doing her best to out-do Mrs Kanye West in the cleavage stakes, as she stepped out at the 9th Annual Style Awards at The Stage at Lincoln Center.

nicole richie

Her ensemble consisted of similar cutouts, plungy-ness and general booby-ness to Kim's.

So there's only one way to settle who looked best - with a battle of the boobs of course!

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The Boob Off - Who wins?

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> IN PICS: KIM KARDASHIAN'S STYLE EVOLUTION

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  • 2007

    Kim Kardashian walks the runway.

  • 2008

    Kim Kardashian wears wide leg trousers and black vest.

  • 2008

    Kim Kardashian wears a yellow top and shoes with jeans.

  • 2008

    Kim Kardashian wears a green print dress.

  • 2008

    TV Personnality Kim Kardashian wears a printer top over jeans.

  • 2009

    Kim Kardashian poses wearing a white waistcoat and trousers.

  • 2009

    Kim Kardashian wears denim shorts and a zebra print jacket.

  • 2009

    Kim Kardashian wearing a pink animal print dress.

  • 2010

    Kim Kardashian walks the runway at the Heart Truth Fall 2010 Fashion Show.

  • 2010

    Kim Kardashian and her mother Kris Jenner are seen in Italy. Kim wears a purple playsuit.

  • 2010

    Khloe and Kim Kardashian a basketball match. Kim wears an all black outfit with a fur sleeve.

  • 2010

    Kim Kardashian attends Heidi Klum's 2010 Halloween Party.

  • 2010

    Kim Kardashian promotes her new book <em>Kardashian Konfidential</em> wearing a statement necklace.

  • 2011

    Kardashian attends adds attitude to her dainty floral skirt with black jacket, tights and boots.

  • 2011

    Kim Kardashian wears a gold number with Louboutin heels at the Grammy Awards.

  • 2011

    Kim Kardashian wears a black fishtail gown.

  • 2011

    Kim Kardashian wearing wet-look leggings and cream jacket.

  • 2011

    Kim Kardashian wears a black playsuit with embellished shoulder detail.

  • 2011

    Kim Kardashian wears a waterfall cream jacket with thigh-high boots.

  • 2011

    Kim and Kourtney Kardashian in New York.

  • 2011

    Kim Kardashian attends the Vera Wang Spring 2012 fashion show wearing blue dress with red lips.

  • 2011

    Kim Kardashian wears a short gold dress to a birthday party.

  • 2012

    TV personality Kim Kardashian wears a silver dress.

  • 2012

    Kim Kardashian arrives at the annual White House Correspondents' Association dinner wearing a green dress with embellished shoulder detail.

  • 2012

    Kim Kardashian wears a figure hugging navy dress with thin straps.

  • 2006

    Kim Kardashian arrives at launch wearing a floral print dress.

  • 2012

    Kim Kardashian wears a floor-length yellow gown with thigh-high split.

  • 2012

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