It is now four months since the Royal Wedding, but there are no signs of any abatement in fashion’s interest in what Pippa Middleton wears. Whether taking a night out with boyfriend Alex Loudon, or just enjoying a shopping trip on her beloved Kings Road, or even on her way to work, Pippa is simply one of the world’s most photographed and talked about women. In the last few weeks, she has been subject to the dreaded ‘who wore it best’ polls after Lindsey Lohan was pictured in a white version of her Alice Temperley wedding reception dress. The, just last week, she was photographed wearing a stunning trenchcoat from…