While it took Lara some time to publicly confirm the news, her son's Rocket and Racer have known from the get-go, with the blonde beauty confirming they're very excited about the new addition to their family.
"We talk about it a lot because I have spent a lot of time in bed recently. And they're like, 'What are you doing?' All boys, I think, want a brother. So another brother… you know, it's building the football team. They're excited!"
Rumours Lara and her actor hubby— who's busy filming the four follow up films to 2009's Avatar— were expecting another bundle of joy began swirling in August after a source told The Daily Telegraph: "It's early days but she's very excited. Lara is pregnant with her third child."
Although the couple rarely discusses their private life and try to avoid the spotlight as much as they can, Lara opened up about being a mom to Rocket and Racer in a touching interview two years ago.
"I was lucky that I had two great pregnancies and two healthy babies but pregnancy isn’t the hard part — it’s taking them home," the Share The Base founder said.
"You’ve got the biggest responsibility of your life and that’s all that matters to me. The first pregnancy is different because it’s something you’ve never done before, and there’s that what if, or the unknown, so I tried not to read anything because I didn’t want to know too much. I just wanted to take my own journey and experience it for myself."
She also opened up about her husband, revealing the hunky Hollywood star is an incredible dad to their little ones.
"He is a fantastic father, fantastic husband and we’re just a really good team. We’ve grown together and grown as a family and I think that’s the most important thing. We travel everywhere together and we never have more than two weeks apart from each other — and that really works for us. He’s just so good with the kids, he does the night feeds and everything — he is seriously superhuman."