It was a double delight for the Aussie men, who qualified for the Tokyo Olympics with a 19-12 win over Samoa earlier yesterday.
Both sides came from behind to win their finals against Fiji's teams.
The Aussie women trailed 12-0 in their championship final against FIjiana and stormed home with a 24-0 second-half to claim the gold medal.
That victory came after two wins over New Zealand in as many days, a huge boost of confidence for a young team.
The men came into their final with a job already ticked off in the form of Olympic qualification but they weren't done with their success.
Australia trailed Fiji 7-5 before taking a 22-7 victory overall in the championship final.