The party boy Prince, who's been pushed down to fourth in-line to the throne, told reporters at a charity event, "When I saw him he was crying his eyes out like all babies do I suppose, but it's fantastic to have another addition to the family."
He added, ""I only hope my brother knows how expensive my baby sitting charges are."
6 REASONS WHY PRINCE HARRY WILL MAKE AN AMAZING UNCLE
Harry met his nephew for the first time on Wednesday and he admitted his brother, Prince William, is well suited to fatherhood.
When asked what role he will play in Prince George's childhood, Harry replied, "To make sure he has a good upbringing, to keep him out of harm's way and make sure he has fun. The rest of it I'll leave to the parents."
The new family are now residing at the Middleton family home in Bucklebury, Berkshire after spending a night at Kensington Palace.
What do you think?
FEARNE COTTON REVEALS POST-PREGNANCY HAIR LOSS
HOLLY VALANCE REVEALED AS 5 MONTHS PREGNANT
PRINCE GEORGE'S CHRISTENING WON'T FOLLOW ROYAL PROTOCOL?