Brotherly love will be set aside for 90 minutes when Pompey travel to Blackburn this weekend.
The rest of the Bennett family will have split loyalties as Kyle and Elliott compete for bragging rights at Ewood Park.
Both players have featured regularly this season for their respective teams, who are separated only by goal difference in the League One table.
Bennett – Pompey’s version – is hoping he will get the chance to face his older brother and knows that neither will be prepared to give an inch.
He said: “I’ve only played against him once in my career – when I was at Doncaster and he was at Norwich.
“In the past he’s been in a higher division, so it’s a bit different now we’re in the same league and fighting for the same thing.
"He’s my brother and I love him, but once it kicks-off it’s all about the football."
“It’ll be a great thing for my family to see us together on the same pitch and they’re all coming along to watch.
“We always talk together about football, but neither of us have been giving anything away about our teams.
“I’m sure it will be a competitive game and he’ll want to win it just as much as I do, so it should be a good occasion.
“He’s my brother and I love him, but once it kicks-off it’s all about the football. If there’s a ball to be won I’m sure we’ll both go for it full-blooded.”
Bennett has mostly performed out wide since arriving on the south coast, but has been utilised in a more central role recently.
He said: “I played there a lot when I was younger and I do enjoy it. It’s somewhere I see myself and the gaffer came in and said the same thing.
“It obviously hasn’t been where I’ve been used in the past few years, but I’m starting to get used to it again.
“You’re more conscious of your defending on the wing, but there can be more space in the number 10 role.”