A 20-year-old model says Commoner Andrew Mountbatten Windsor asked her to live out his ‘wildest fantasies’ and ‘engage in kinky sexual activity’, his royal biographer has claimed.

The young woman, who met the former Prince at a charity function in the late 1980s, said he had ‘no boundaries’ and slept with her twice after claiming he was in an open relationship with Sarah Ferguson.

Biographer Andrew Lownie quotes the model saying: ‘He wanted me to engage in kinky sexual activity. He had no boundaries.

‘He told me he had an open marriage arrangement with his wife. After returning to London, I never heard from him again.

‘I felt like he used me for a few days, so he could live his wildest fantasies.’

Mr Lownie, author of Entitled: The Rise and Fall of the House of York, revealed Mr Mount

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