Kieran Culkin and Jazz Charton are expecting their second child.
The 'Succession' actor's wife has debuted a bonny baby bump in a sweet snap of her holding hands with the couple's daughter Kinsey Sioux, 20 months, on Instagram.
She captioned the picture of the mom-and-daughter duo wearing matching floral dresses: "34", seemingly to mark her 34th birthday.
Jazz revealed when Kinsey was born after an intense labour in September 2019 that she wants "all the drugs" with their next child.
She wrote at the time: "After 25 hours of laboring at home, we arrived at the hospital too late for any pain meds as I was already dilated and ready to push (if I ever do this again I want ALL THE DRUGS, all of them!) and she was out within the hour during a full moon on Friday the 13th.
"Of course our daughter was born on Friday the 13th. (sic)"
Meanwhile, Kieran and Jazz's baby news comes after his brother Macaulay Culkin and his partner Brenda Song welcomed their first child, a son named Dakota, into the world last month.
In a joint statement, the couple - who met a few years ago - admitted they were "overjoyed" with the arrival.
Macaulay had previously revealed he was trying for a baby with Brenda.
He confessed: "We practice a lot. We’re figuring it out, making the timing work. Because nothing turns you on more than when your lady comes into the room and says, 'Honey, I’m ovulating.'"
Macaulay - who is best known for starring in the ‘Home Alone’ franchise as a child alongside Kieran - was eager to start a family while he is still young.
He added: “I got an ulcer or two I gotta deal with. I don’t poop like I used to. My body’s like, 'Oh, is this what the beginnings of dying feel like?'"
