The Mata'utia brothers, Chanel and Sione, scored 20 of the Newcastle Knights' 42 points in Saturday's win over the Parramatta Eels, in just their sixth game of NRL.
18-year-old Sione crossed for two first half tries, before 22-year-old Chanel recorded a hat-trick in the second half.
The five-try haul follows Sione's hat-trick and Chanel's single in the Knights six-point win over the New Zealand Warriors in Round 23, after bursting onto the scene in Round 20.
"Sione was always going to be a top player, I don't think anyone has really doubted that since they've seen him play," coach Wayne Bennett explained following the game.
"Chanel when he came here was so far off the pace...so it's a real credit to him.
"He's done such a good job on himself and has bought into what we've done at training, he's a very good player.
"He's always had the ability but didn't have the right attitude, so it's nice to see and pretty special for two brothers playing together in a footy team at any stage."
Bennett also praised his two centres, Joey Leilua and Dane Gagai, who were dominant in the 30-point win over the Eels at Hunter Stadium.