Dom Du Toit and Demi Hayes have both signed new deals set to take them through to Tokyo 2020.
It comes after Charlotte Caslick, Vani Pelite, Emilee Cherry and Alicia Quirk put pen to paper for another Olympic campaign.
Despite being only 21 and 20 both Du Toit and Hayes have become established members of the squad.
Hayes made her debut at the age of 17 during the Langford Sevens in 2016 after coming on as a replacement against Brazil.
Du Toit made her debut during the 2016 Rugby Sevens World Series and was an injury reserve for Rio but watching her teammates win gold made her determined to be at an Olympics.
“Obviously my long-term goal is being able to compete at the Olympics, so to sign until 2020 that's pretty positive for me to be able to be in contention for Olympic selection,” she said.
“I had no expectation of making that team, to be able to be a travelling reserve was an incredible experience and definitely gave me insight to what it's like and it’s definitely motivated me, driven me, given me a goal of exactly what I want to do.
“To be able to see their emotions and what they achieved, I definitely want to be able to feel that as well,” Du Toit said.
The next leg in the World Series takes place at Spotless Stadium in Sydney from February 1-3 in 2019.