Congratulations to David Krumholtz!
The 38-year-old actor and his wife, Vanessa Britting, welcomed their second child, a baby boy named Jonas on Dec. 7.
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"His name is Jonas. My son. 8 lbs 15 oz.," Krumholtz captioned the first sweet photo of his little guy, adding the hilarious hashtag, "#AllBalls."
The Numbers star clearly cannot get enough of his new bundle of joy, and who can blame him?
"My kids are kid goals," he wrote alongside a pic of Jonas with 2-year-old big sister, Pemma, before sharing a series of hilarious photos of the newborn.
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Krumholtz isn't the only star to welcome a bundle of joy this winter. Nick and Vanessa Lachey welcomed their third child, a baby boy named Phoenix Robert, on Dec. 24.
See more in the video below.