FILE - In this Tuesday, July 23, 2013 file photo, Britain's Prince William and Kate, Duchess of Cambridge hold George, the Prince of Cambridge, as they pose for photographers outside St. Mary's Hospital exclusive Lindo Wing in London where the Duchess gave birth on Monday July 22. (AP Photo/Lefteris Pitarakis, File)

Royal couple expecting second child

Prince George is not going to be an only child for long — the toddler will soon have a baby sister or brother to share his fancy digs at Ken…