Hopefully Neighbors taught Rose Byrne a few valuable lessons about raising a baby: She and boyfriend Bobby Cannavale are expecting a child together!

E! News reports that the Australian actress flaunted her growing baby bump at LAX airport on Thursday in a loose-fitting but clingy plaid shirtdress, which she paired with black tights, black ankle boots and a brown fedora.

This will be the first child for Byrne, 36 and Cannavale, 45, who began dating in 2012 and costarred together in Spy, Annie and Adult Beginners.

Rose Byrne

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Byrne recently gushed to PEOPLE about her multitalented sweetheart.

“Bobby’s a great cook. He’s Cuban and he does a couple of really good Cuban dishes like arroz con pollo and Cuban cocktails,” she said. “He’s better than I am. I’m the good cleaner after!”

Bobby Cannavale and Rose Byrne

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And working together on multiple films will undoubtedly help the couple when it comes time to co-parent.

“[Acting together] is a very intense thing you can experience together,” Byrne shared with PEOPLE. “It’s not for everybody, but I think he’s such a great actor.”

Now for the next “intense” shared experience: parenthood!

Her reps didn’t immediately respond to requests for comment.