Prince Charles shares crucial words with William and Kate Middleton during latest royal engagement

Prince William and Kate Middleton were seen exchanging words with Prince Charles and Camilla before the start of today's Commonwealth Day service on Monday.

The Prince of Wales revealed a future plan while chatting to the Duchess of Cambridge on their arrival at the at Westminster Abbey, according to a lip reader.

Prince William and Kate Middleton were among the royal guests at the annual Commonwealth Day service. The Cambridges  were joined by Prince Charles - who stood in for the Queen after she pulled out of attending the ceremony - and his wife Camilla, the Duchess of Cornwall.

Before the procession at the start of the service began, the royal party were able to greet each other with warm hugs and kisses and engage a just a few minutes of chit-chat.

And according to a lip-reader, in Charles's short conversation with Kate, the pair appeared to be making some exciting future plans.

Jeremy Freeman, an expert in lip reading told the Mirror, that Charles told his daughter-in-law "we are going to pop in and see you all..."