Party politics: Cara Delevingne, sister Poppy and Suki Waterhouse party at Samantha Cameron's Downing Street reception

Laura Bailey, Cristiana Arcangeli and Philip Green were also in attendance at the bash

Models of the moment: Suki made her way out with Cara and Poppy before heading off with beau Bradley (Photo credit: Dave Benett)

Emma Powell16 September 2014

Model trio Cara Delevingne, sister Poppy and Suki Waterhouse looked catwalk ready as they left the Downing Street reception hosted by Samantha Cameron last night.

The Delevingne sister’s had been on the FROW watching Suki, 22, strut her stuff on the Burberry Prorsum catwalk earlier in the day, and teamed up to party together in the evening.

London fashion Week Downing Street Reception

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Looking very glitzy, Poppy was showcasing a lacy gold dress while Cara and Suki glammed up in black.

Model of the moment 22-year-old Cara was sporting a pair of black flares as she made her way out of the venue and past the police officers.

The night’s coveted guest list also included Suki’s beau Bradley Cooper.

The pair were reunited at the Whitehall residency after he was unable to attend her Burberry show at Kensington Gardens.

The couple later teamed up with actress Sienna Miller – who looked elegant in a red leopard print maxi with monochrome snake print top – her fiancé Tom Sturridge and Bradley’s new BFF Anna Wintour as they headed to an after party feast at J Sheekeys in Covent Garden.