"Delta Bell Shepard is here," the 39-year-old "Parenthood" actor said on Twitter that evening. "She doesn't look like either @IMKristenBell or me, but we're gonna keep her anyway. #christmascameearly."
Smart move, as those kidlets do not come with gift receipts ...
"The estrogen has now hit critical mass! Good luck, @daxshepard1. And welcome to the world DELTA BELL SHEPARD :)," the "Veronica Mars" star added minutes later, riffing off the celeb-tastic tradition of tweeting a tease pic of a newborn's tiny hand wrapped around a doting parent's finger: She included a shot that appears to show the tenderly embracing mitts of big and little gorillas. Or maybe orangutans. Or -- perhaps the hands belong to chimpanzees?
In any case, that primate mama was not sharing a full photo of her infant, much like wee Delta's parents, who've been strong supporters of the "No-Kids Policy" regarding unauthorized pics of celebrities' children.
Bell, 34, followed up with a couple of tweets in support of childhood vaccines.
Big sis Lincoln Bell Shepard was born in March 2013. The couple confirmed the pending arrival of Baby No. 2 in June.