Thousands react as Kate Middleton shares son's pictures ahead of his birthday

Kate Middleton on Friday shared a couple of pictures of her Prince Louis ahead of his 4th birthday.

Taking to official Instagram account of the Duke and Duchess of Cambridge, Kate wrote,  "4 years old tomorrow!."

 Thousands of people liked Louis' picture which contained 'Duchess', the title of his mother, in the caption.

Prince William and Kate are parents of three children Princess Charlotte, Prince George, and Prince Louis.