William and Kate shared the photo on their joint Instagram account, @princeandprincessofwales. On her own newly-launched Instagram account, Meghan, the Duchess of Sussex, shared a photo Friday of herself kissing Prince Harry along with a Valentine's Day message.

Prince William and Kate Middleton showed a rare public display of affection as the royal couple marked Valentine's Day with a kiss.

Just hours after Prince William and Kate Middleton broke with royal convention by taking to social media to share a peck on the cheek to mark Valentine’s Day, Meghan Markle decided to show them how it’s really done.