Early on, Takairangi and Hireme were the benefactors of some strong work from the pack, with the likes of Annetta Nuuausala and Georgia Hale causing the Fetu Samoa defence all sorts of trouble up the middle of the park.
After falling behind early, the visitors calmed down and were able to maintain some possession and try to launch their own attack. But while they were able to work into the red zone a couple of times, they weren't able to penetrate the Kiwi Ferns' defences until the final stages of the first half.
Awarded a penalty within the final minutes of the opening stanza, Fetu Samoa took advantage when it appeared the Kiwi Ferns had checked out of the half, with Billy-Jean Ale scoring out wide to see the Samoan side trail by 22 at the break.
The second half didn't start much better than the first ended for the Kiwi Ferns, with their opening restart sailing out on the full to gift the visitors the ball on halfway. But after seeing off an early Samoan attack, the hosts again put their foot down.
The Kiwi Ferns took over early in the second half and didn't look back. Hireme, Apii Nicholls, Kathleen Wharton, Madison Bartlett and Teuila Fotu-Moala all scored in the second half to help seal a convincing win.
Kiwi Ferns 46 (Kiana Takairangi 2, Honey Hireme 2, Kathleen Wharton, Raecene McGregor, Madison Bartlett, Teuila Fotu-Moala, Apii Nicholls tries; Charntay Poko 3 cons, Nicholls con)
Fetu Samoa 8 (Billy-Jean Ale, Moana Fineaso-Levi tries)
HT: 26-4