In May, Josh Brolin surprised his online followers by revealing that he and his wife, Kathryn Boyd, were expecting their first child together.
"There's a new sheriff in town, and she's no bigger than a sweet potato. Hang on to your hats," he wrote in the caption of an Instagram post.
Since the announcement, Brolin, who is already a dad to 24-year-old Eden and 30-year-old Trevor from his first marriage to Alice Adair, has been opening up about his excitement over becoming a father again.
"I'm always excited about kids," the actor told Entertainment Tonight in June. "I prefer being around kids. You know, they have the imagination. They're fun. I've heard other people be like, 'Kid's sitting there, he's staring at nothing, he's slobbering, like, what's the point?' The point is to sit there and slobber with him. That's the point."
Six months after sharing the happy news, the Deadpool 2 star has finally welcomed his bundle of joy.
Brolin took to Instagram to announce the arrival of their daughter, who they named Westlyn "Bean" Reign.
"Dearest Ladies and Gentlemen, I would like to introduce our little girl Westlyn Reign Brolin (Bean)," Brolin wrote in the caption of a video of his little girl. "Mama Kathryn was stellar during this miracle birth and Bean is a flawless gem through and through. We are blessed to the core and appreciate so much the love and support during this pregnancy from ALL who have partaken in our journey, directly and/or indirectly."
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Dearest Ladies and Gentlemen, I would like to introduce our little girl Westlyn Reign Brolin (Bean). Mama Kathryn was stellar during this miracle birth and Bean is a flawless gem through and through. We are blessed to the core and appreciate so much the love and support during this pregnancy from ALL who have partaken in our journey, directly and/or indirectly. â¤ï¸â¤ï¸ðŸ¼ðŸ‹ðŸ»"â™€ï¸ðŸ€ #beanlove #dogtown @kathrynbrolin
Boyd also posted the video on her page and wrote a sentimental message alongside it.
"I love you so much already," the first-time mom wrote. "Nothing compares to this... nothing. My heart is totally different forever. @joshbrolin thanks for this little life of ours."
While Brolin and Boyd are over the moon, they're not the only ones who are excited about Westlyn's arrival.
Brolin's stepmother, the legendary Barbra Streisand, has supported the couple during every step of the pregnancy and will without a doubt be a doting grandmother.
"The kid has a great Jewish grandmother and she's appropriately manifesting like she should," Brolin said of Streisand, who's married to his father, James Brolin. "She's into it, she calls every day, she follows the app. It's amazing. Look, it could've been the opposite and it's not, so we love that people are involved, family's involved, friends are involved. It's a good thing."
Brolin, 50, and Boyd, 31, started dating in 2013 after she worked as his assistant for two years. The pair became engaged in 2015, and tied the knot the following year in North Carolina.
The Goonies alum, who was also previously married to actress Diane Lane, told ET that he hopes his marriage to Boyd will be as successful as his father's relationship with Streisand.
"You know, my dad, like myself, has been married before and for some reason this just clicked and it just made sense from the beginning," he explained. "You never know, you have your fluctuations in a relationship and after 20 years, they're looking at us going, 'Can you believe it's 20 years? I can't believe it's 20 years.' So, we hope the same for us."