A rare insight into life behind closed doors for the royal couple. They've been married for five years now but this is the first time we've heard some of the more intimate details of their relationship.
At the Chelsea Flower Show in London, Australian gardener and TV host Charlie Albone spoke to the royal couple.
"He came up and said: 'What [flower] is this one?' " Albone told The Today Show. "And I replied, 'That's a Buxus.'"
"Princess Catherine just turned to him and said, 'Babe, we've got those. We've got loads of those.'"
Now while calling a beau, babe, isn't something new we think that it is adorable!