Article continues below advertisementOK! can reveal Kate Middleton is determined to savor what insiders describe as a joyful "last hurrah" with Prince William, as the couple quietly plan a period of fun, family time and travel before the full weight of the crown inevitably descends.Kate, 44, and William, 43, are said to be consciously putting their marriage and children first while they still can, as they are now "painfully aware" their freedom will narrow sharply once they become King and Queen, insiders tell us.