Family bragging rights will be on the line on Friday with a trio of Peters sisters and sister-in-law going head-to-head for the first time ever in women's rugby league.
Hilda Mariu (nee Peters), who married Warriors five-eighth Laura earlier in the year, will join sister Kahurangi Peters in a battle against middle sibling Rona Peters when they take on the Broncos at AAMI Park in Melbourne.
Rona will start at lock for Brisbane, who are aiming for three straight victories in the inaugural NRL Holden Women's Premiership.
The 30-year-old resides in Brisbane but has never come up against Hilda and Kahurangi at any level.
Hilda is the oldest sibling in the family and told pan66.com it would be new territory for everyone.
"It's a little bit nerve-racking because we've never had sisterly beef," Hilda said.
"Being the eldest in the family I've always taken care of my little sisters. It's going to be different on the paddock knowing I've got to come against them.
"We've never had to think we'd play against each other. I know my parents are proud of all of us but I guess next week I'm not sure who they're going to go for. After a loss we really need to come back from that. In terms of sisterly love there's not going to be much out there."
She added that even though Laura always got along with her siblings but said she would not hold back despite coming up against Rona's Broncos outfit.
Hilda married Kiwi Ferns skipper Laura in 2018 and laughs to tell the tale of how the pair got off to a rough start in their first meeting.
"I shoved her during a club game," Hilda said.
"She turned back and told me to run it straight. I thought 'no, thank you'. After the game we shook hands and it started from there.
"It's actually awesome. You have your wife on the right side. We feed off each other's energy. If she's going to yell I don't take it to heart or anything because it's all in the name of the game.
"We've never made it a big deal. We can sit down and talk each other through our games. Some of the good points and bad things we need to work on.
"We're good like that. I truly respect her as a player, why wouldn't I take her feedback. She's not one to put me down, it's quite good."
The Warriors will be desperate to topple the Broncos in a bid to progress to the inaugural NRLW grand final on September 30.
Brisbane have all but booked their spot in the decider as long as they can avoid a heavy loss.