The Bridget Jones’s Diary actor also admitted he once showed his backside to his son for fun but “then he got the habit and taught every single child in West London to do the same!”
While chatting to TV presenter Ellen DeGeneres about fatherhood, he said: “Everyone was right all these years, saying, ‘Hugh, why don’t you have some children? It changes your life’.
“Now that I have a child, it is life-changing.
“I recommend it. Get some!”
The Graham Norton Show, BBC One, Friday 6th November 10.45pm. Also available on BBC iPlayer.