Instead the princess-in-waiting wants Wills and his brother Prince Harry to join her at a charity roller- disco, which she is helping organise in aid of sick children and youngsters in deprived areas.
Kate, 26, is on the committee running next month's London event- raising funds for Tom's ward at the Children's Hospital in Oxford and Place2Be, which supports children's emotional well being through drop-in sessions at 128 schools. Fellow organisers for the September 17 disco include Richard Branson's daughter Holly.
And everyone taking part will be expected to comply with the Day-Glo dress code.