Shoeless Sarah Ferguson too toe-curling for princesses

Sarah Ferguson embarrassed her daughters at a party by kicking off her stilettos to walk barefoot.

Royal high-nesses: Fergie, Eugenie and Beatrice

The Duchess of York, 49, attended the pre-Wimbledon bash at Kensington Roof Gardens with princesses Beatrice and Eugenie.

Golden girl: Ana Ivanovic with tanned legs at the party

A source told us: "Her feet were clearly hurting as she suddenly stopped and took her shoes off, saying, 'sorry, I can't walk any further'. "Eugenie turned to her mother and yelled, 'Oh mum, what are you doing?' But Fergie was unconcerned by her daughter's pleas."

At the same party, 21-year-old tennis star Ana Ivanovic looked as if she had been Tango-ed. Miss Ivanovic, from Serbia, showed off a tan and her telltale white "tennis feet".

Meanwhile, fellow guest Konnie Huq, 33, revealed she has started a modelling career by signing to the Select agency. "It's a brand-new chapter for me," she said.