Kevin Doyle, political editor at the Irish Independent, tweeted that he hadn't been able to confirm whether Harry and Meghan drank "any of the 14 bottles of water".
Higgins and his wife brought the Duke and Duchess of Sussex to the bell at Áras an Uachtaráin, a symbolic monument marking the 10th anniversary of the Belfast Agreement. "When are you and Meghan going to get going?"
"He laughed and said, 'five children?-too many, '" Elaine shared with People when recalling the fun interaction.
Though they aren't looking to have a brood quite that large, the duo certainly want a family of their own.
Newlyweds Prince Harry and Meghan, who looked stylish in an olive-green Ralph Lauren outfit and Stephen Jones hat, were also in attendance, along with Louis' siblings PrinceGeorge, 4, and Princess Charlotte, 3.
Not done there, the duchess then changed into a more casual ensemble for the couple's visit to the city's famous Croke Park to see some of the traditional sports of the country.
Queen Elizabeth, 92, has also begun to scale back her duties because of her advancing age, handing over some of her responsibilities to her heir, Prince Charles.
The royal couple did a walkabout of the stadium, before stopping to chat to some youngsters.
While the British royals are careful, but not always successful, in keeping their thoughts private, Meghan wasn't at fault when her feelings on the abortion issue were made public, according to royal biographer Robert Lacey.