The Sultry Duchess: Best Long Gowns of Kate Middleton [PHOTOS]

The Duchess of Cambridge, Kate Middleton, is one of the world's most inspirational fashion icons. But while other's brand her as "boring" some of her photos evidently show that The Duchess can be sultry.

Having the title as The Duchess of Cambridge doesn't come easy and it certainly doesn't come cheap. Being a representative of her country, Kate Middleton has proved that she is in fact one of the most stylish women not only in Britain but the rest of the world to date.

From simple Sunday clothes, to casuals, dresses and evening ball gowns, The Duchess has impressed continuously while only having few fashion misses here and there. Kate Middleton almost always knows what to wear on what event.

From black sultry lace to back baring gowns, The Duchess certainly knows how to keep it sexy but modest. And when it comes to more sophisticated long gowns, Kate Middleton prefers her favorite designers Alice Temperley, Jenny Packham and her go-to Alexander McQueen.

Although the prices doesn't come in bargain and The Duchess refuses to pay lower than the original price and she simply need not worry since her father-in-law, Prince Charles takes care of the bills under that condition that the clothes are used for "work."

See The Duchess of Cambridge, Kate Middleton, as she makes a transition from classy to sexy.

Also read:

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Britain's Catherine, Duchess of Cambridge arrives at a military awards ceremony, A Night of Heroes: The Sun Military Awards, at the Imperial War Museum in central London Dec. 19, 2011. Kate Middleton has been named the top beauty icon of 2011.

Kate Middleton wows in a black Alexander McQueen's Sarah Burton evening gown, which she wore to the Sun Military Awards at London’s Imperial War Museum.

Middleton wore a white gown with black lace overlay by Alice Temperley, one of her favorite UK designers, at the red carpet premiere of Steve Spielberg's "War Horse" in London.

Prince William and Kate Middleton

Kate Middleton wearing a Jenny Packham gown and shoes from L.K. Bennett.

Kate Middleton in Amanda Wakely Bejewelled Gown | Source: coolspotters

Britain's Catherine, Duchess of Cambridge arrives for the 'Our Greatest Team Rises' event to celebrate TeamGB and ParalympicsGB at the Royal Albert Hall, in central London May 11, 2012.

The Duke and Duchess of Cambridge hosted a black-tie reception and dinner, at St. James' Palace in London, for the National Memorial Arboretum appeal.

Kate Middleton in a cream full length gown

Kate Middleton wearing a lilac Alexander McQueen dress to the BAFTA Brits to Watch event in Los Angeles in July 2011.

Kate Middleton might have passed a milestone when she married Prince William in April, but she is headed towards another hurtle – Christmas.