Adriana Lima & Alessandra Ambrosio show off her skin at Valentine's Day: With Valentine's Day upon us, it's the perfect time for the Victoria's Secret's models to start promoting their summer range. The girls spent the afternoon posing on a Malibu rooftop as they modelled the Bombshell summer line yesterday. Alessandra Ambrosio showed off her womanly curves in a black polka dot bikini, which uplifted her figure.

With the help of huge amounts of hairspray to give the 29-year-old's brunette locks the required amount of body, she twisted and turned for the cameras. While the Brazilian model was working hard her fellow 'angels' were also strutting their stuff. Adriana Lima, 29, reclined on a sun bed, while blonde-haired Candice Swanpoel squeezed into a pink and white bikini set.

The girls then pulled on matching white dressing gowns and headed over to the beach to continue their shoot. The 'angels' are also busy filming their new TV advert, with Transformers director Michael Bay at the helm.

A behind the scenes sneak peek was released last week of the models promoting the new line. To tie in with Valentine's Day the video, which was shot in New York, features them talking about their own personal romances.

Lily Aldridge - who is engaged to King's Of Leon front man Caleb Followill- says she was in love with one of the boys from American boy-band, New Kids On The Block. 'The first time I fell in love, I am pretty sure it was with a New Kid On The Block, when I was four and it was amazing,' she laughs. 'You know, so many emotions!'

Lily and fellow Angels also share their thoughts about love in an exclusive video showing off the lingerie giant's sexy new wares. They are also joined by veteran angel Adriana Lima, where the mother-of-one suggests that everybody should 'kiss a lot' on the romantic day. 'It's all about giving love to your friends and family,' says the 29-year-old . 'So kiss a lot, love a lot, hug a lot... Give some love.'