She welcomed her second child, a daughter named Chapel Grace, with husband Josh Brolin, 52, on the evening of December 25.
And Kathryn Brolin looked beyond smitten with the newborn on Friday afternoon in a series of clips shared to her Instagram Story.
The 33-year-old actress, with her lengthy blonde hair styled in braids, cradled Chapel Grace in her arms as they lounged on the couch.
Pure bliss: Kathryn Brolin looked beyond smitten with the newborn on Friday afternoon in a series of clips shared to her Instagram Story
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Cuddling: The 33-year-old actress, with her lengthy blonde hair styled in braids, cradled Chapel Grace in her arms as they lounged on the couch
Kathryn smirked sweetly for the camera, while a noticeably bundled up Chapel Grace writhed around.
Chapel rested in her mother's arms, while donning a white long sleeve shirt and a pair of pint-sized leggings.
Kathryn, also wearing a white long sleeve top of her own, pressed her baby to her chest and planted a kiss on her tiny forehead.
In a follow-up video, the wife of Josh Brolin posed in front of a floor-length mirror in her home' enviably spacious kitchen, while Chapel slept in her arms.
Cozy: Chapel rested in her mother's arms, while donning a white long sleeve shirt and a pair of pint-sized leggings
Tender moment: Kathryn, also wearing a white long sleeve top of her own, pressed her baby to her chest and planted a kiss on her tiny forehead
Chapel's mouth was wide open and her head was resting comfortable against Kathryn's chest.
Due to the cold weather in Georgia, Kathryn decided to throw a grey cardigan over her thin long sleeve shirt and even slipped on a pair of black and white color block leggings.
As she zoomed in and out of her and her sleeping daughter, a smile swept across Kathryn's face.
