London- The Duchess of Cambridge joined Paddington for a dance on a station platform during a surprise visit to a charity event.

On Monday, the 35-year-old joined her husband and his brother Prince Harry at London’s Paddington station to meet a group of children who have been helped by their charities.

Kate, wife of Queen Elizabeth’s grandson Prince William, last week made her first public appearance since it was announced in September she was expecting the couple’s third child but suffering from morning sickness hyperemesis gravidarum.

They met children from charities they support who were heading off on a special trip in the sister train to the Venice Simplon-Orient- Express for a ride through the English countryside.