Lindsay Lohan and Samantha Ronson were all smiles as they posed for pictures at a party in West Hollywood last night .

The couple - whose relationship is rumoured to be on the rocks - were on top form as they headed into Jenni Kayne and Andy Lecompte's Salon Party.

Lindsay seemed to be back to her old self, in a glamorous black frock and smoky eye make-up whilst Sam opted for her less-glitzy trademark jeans and a jacket.

The Mean Girl had competition in the fashion stakes, however, as Nicole Richie managed to steal the spotlight in a stunning tomato red dress and gold head band.

Lindsay and Sam will be hosting their own party this Valentine's Day at Passion nightclub in Florida.

See Lindsay as the face of Fornarina below