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Christina McLarty, David Arquette

Michael Kovac/Getty Images for Art of Elysium

David Arquette already has two bundles of joy in his life...and now he's about to make that three!

The 45-year-old actor took to Instagram on Wednesday and announced his wife, Christina Arquette, is pregnant with their second child, sharing a precious video of their 2-year-old son, Charlie, and revealing they're expecting another baby boy!

"So incredibly blessed and honored that my wife @christinaarquette is pregnant with a baby boy!" he captioned the video. "Thank you Christina and humbled gratitude to G-D for this tremendous gift!"

He continued, "Charlie and Coco are so excited and I am over the moon!!!" Coco is his 12-year-old daughter he shares with ex-wife Courteney Cox.

In the video, Charlie is seen holding up a sonogram and hugging it closely to his face, giving it the littlest kisses. He then looks at his mom and asks, "A baby?"

Christina responded, "Yeah! It's a baby in my belly! Say, 'Hi, brother!'" The 2-year-old responded adorably, "Hi baby! Hi brother!" before giving the photo a big kiss.

Meanwhile, David and Christina welcomed Charlie into the world on April 29, 2014. 

The two began dating in 2011, but in mid-2012, they broke up. "Sadly I'm single again," Arquette tweeted at the time. "A long distance relationship proved to be too difficult." However, they later got back together, and in November 2013, the couple announced they were expecting a baby.

David asked for Christina's hand in marriage in June 2014 and the pair married the following year.