The girls hit up the London Edition Hotel in Fitzrovia - a popular hotspot with the celebrity set.
The event was to celebrate GUESS' collaboration with top Bollywood actress and singer, Priyanka Chopra, who became the new face of the fashion brand a few months ago.
Former GUESS girls include hotties like Adriana Lima, Kate Upton, Alessandra Ambrosio, Drew Barrymore and Paris Hilton.
And thanks to Laura and Pixie, we've already got some of the label's new pieces on our lust list.
Pixie rocked a printed mini skirt and co-ordinating jacket - available in store now - that showed off her bronzed pins.
Laura opted for the same jacket - worn in her trademark shoulder robing style - but was way ahead of the fash pack, wearing a powder blue shirt and trousers from the autumn 2014 collection.
Eliza Doolittle and David Gandy also nabbed an invite while Caroline Flack took to the DJ booth - oh, to be a fly on the wall at that party!
What do you think of Pixie and Laura's latest looks? Tell us below as the best comment from across the site each week wins £50!