Congratulations, Shiri Appleby!

The 37-year-old actress and her fiancé Jon Shook welcomed their second child, a baby boy named Owen Lee, she announced via Facebook and Twitter on Monday, Dec. 21.

"Glad to welcome home Owen Lee Shook. #5daysold #alreadycrackingjokes #1800gotaboy," she captioned the sweet family snapshot, where their two-year-old daughter Natalie Bouader can be seen happily gazing at her new baby brother.

The Roswell star previously opened up about her excitement regarding baby No. 2. "I think it's just easier in the sense that it doesn't feel as unknown, as foreign. You kind of know what you're getting into," she told E! News back in September.

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"Of course, the other question is 'How do you have two and juggle it and manage it?' but millions of people have done it before us so I feel like we'll figure it out," she continued. "I think it's just a lot more excitement as opposed to nerves."

Congratulations to the happy couple on their family's newest addition!