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Meet the Fokkens: Amsterdam's oldest prostitutes

2 October 2012 Last updated at 22:23 BST

Amsterdam's oldest prostitutes have been thrust into the spotlight with the release of their memoirs and a documentary film about their lives.

The film, Meet the Fokkens, follows 70-year-old identical twins Louise and Martine Fokken as they share secrets of selling sex in the city's famous red light district.

Anna Holligan reports.