The leaders of New Zealand and Finland respectively met for diplomatic talks. It was Marin's first official tour and she was the first Finnish prime minister to visit the country.
All normal stuff for politicians then, but a New Zealand reporter working for Newstalk ZB asked whether the two were meeting because they are "similar in age" and "got a lot of common stuff there" or whether they planned to sign more "deals".
An incredulous looking Ardern eplied: "I wonder whether or not anyone ever asked Barack Obama or John Key (New Zealand's former prime minister) if they met because they were of similar age?
"We, of course, have a higher proportion of men in politics, it's reality. Because two women meet, it's not simply because of their gender."
The politician went on to list ways in which New Zealand and Finland are tied in terms of trade and said Finland exports NZ$199 million worth of exports into New Zealand while New Zealand sends around $14 million to Finland.
"There is huge potential between us," she said and said the developing relationship needed to be furthered "regardless of our gender".
Then, Marin added: "Yeah, now we are meeting because we are prime ministers, of course." Deadpan goals.
"We have a business delegation with us," she added and similarly outlined ways in which the countries could work together.
\u201cWatch NZ Prime Minister Jacinda Ardern pick apart this reporter's question during a joint press conference with Finnish PM Sanna Marin. He asked the pair 'are you two meeting because you're similar in age and got a lot of common stuff there?'\nRead more: https://t.co/eTtJEqJoFZ\u201d