Kristen Stewart wore an unusually revealing dress as stars of The Twilight Saga: New Moon met fans in Madrid last night.

The 19-year-old actress's sheer outfit showed off more than just her slim figure on the red carpet.

It comes just days after Stewart proved she had her finger on the style pulse by wearing a Proenza Schouler dress to the film's London opening.

Kristen Stewart wears daring sheer dress to Twilight fan party in Madrid.

She was joined at the fan party in Madrid by her New Moon co-stars Robert Pattinson and Taylor Lautner.

Both male actors also dressed up for the occasion, with Pattinson sporting a leather jacket and Lautner showcasing a full three-piece suit.

Stewart was joined on the red carpet by Lautner (left) and Pattinson (right).

Like previous events on the promotional tour, the trio signed autographs for hundreds of the movie's devout followers.

Released worldwide on November 20, New Moon is the second installment of The Twilight Saga.

The movie follows the complex relationship between Pattinson's vampire character Edward Cullen, schoolgirl Bella Swan (Stewart) and werewolf Jacob Black (Lautner).

The film's main premiere is due to take place in Los Angeles next week.

The Twilight Saga: New Moon arrives in Madrid