Sienna Miller and fiancé Tom Sturridge have been unveiled as the new faces of Burberry.

Continuing Burberry's 'couples concept', the duo shared some raunchy kisses for fashion photographer Mario Testino's new ad campaign for the British brand.

Previous pairs have included Eddie Redmayne and Cara Delevingne, and Rosie Huntington-Whiteley and Sam Riley.

Christopher Bailey, Burberry's chief creative officer, said: ''This was a shoot full of love and laughter.

''It was such a treat to work with Sienna and Tom, and to capture their magic together.''

The upcoming TV advert takes place to the soundtrack of Tom Odell's new single, 'Hold Me'. The British singer also performed a live set during Burberry's autumn/winter 2013 catwalk show in February.

Style icon Sienna - who has her own line Twenty8Twelve with her sister Savannah Miller - recently had her first child, 11-month-old Marlowe, and revealed she no longer has enough time to focus on fashion.

She told French newspaper Le Figaro: ''I don't know what the new fashion trends are! Because of my daughter, Marlowe, I don't have time to follow them anymore.

''I love fashion but I'm not obsessed by it. I love work, my style, but I don't only think about that, even though some people would like to believe the contrary.

''I don't wake up in the morning saying, 'I'm such an icon!' My life is very different; I've got a baby who only gives me two hours of peace each night.''