"I still have the scar on my knee from two Christmases ago, " Heming told W magazine.

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Stefano Tonchi, editor-in-chief of W magazine, called the Missonis "one of the most important Italian fashion families, " crediting their move to Milan in the late 1960s with helping make the northern Italian city the fashion hub it is today.

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For the photographers themselves, work like this can be more liberating than shooting magazine covers, which with few exceptions (W, for one) come with lots of rules: the subject must make eye contact, must be smiling, must be conservatively made-up, etc.

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