Josh Brolin and wife Kathryn Boyd are having one other child.
Boyd, 32, introduced Tuesday that she is expecting her second child with 52-year-old Brolin.
“The Brolin’s are a growin’!!,” the mannequin captioned a pic on Instagram displaying off her rising child bump. “Our little December babe is on the way in which…. 🌱.”
Brolin jokingly responded by commenting, “Wow. That’s wonderful! Congratula…wait…WHAT?!?!”
The couple are the mother and father of 19-month-old daughter Westlyn.
They received married in North Carolina in September 2016 after courting for 3 years.
The “Avengers: Endgame” actor can also be father to daughter Eden Brolin, 26, and son Trevor Brolin, 32, whom he shares with ex-wife Alice Adair.
He was additionally beforehand married to actress Diane Lane, although that they had no kids together.