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Colin Jost Details Relationship Between Son Cosmo and Scarlett Johansson's Daughter Rose

Colin Jost gave an inside look into how his and Scarlett Johansson’s 3-year-old son Cosmo gets along with her and ex-husband Romain Duriac’s 10-year-old daughter Rose.

By Hayley Santaflorentina Sep 11, 2024 5:59 PM
| Updated Sep 11, 2024 6:02 PM
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Watch: Colin Jost & Michael Che Tease Surprise Guests in New Peacock Comedy Special

Live from New York, it’s Colin Jost with an adorable update.

The Saturday Night Live star gave an inside look into his life at home with wife Scarlett Johansson, their 3-year-old son Cosmo and the actress’ 10-year-old daughter Rose (who she shares with ex Romain Duriac).

“The two of them spent a lot of time together this summer, which was nice for them,” the comedian exclusively told E! News. “She's a very nice, loving sister.”

Because assembling their brood isn’t always easy.  “Normally she's got her own life,” Jost—whose new comedy special Colin Jost & Michael Che Present: New York After Dark airs on Peacock Sept. 12 at 9 p.m. ET—continued, “but this time she was forced to stay with him for a lot of time, and they got along really well.”

Which means Rose was also there for one of Cosmo’s biggest milestones yet.

“He drank some milk and then said, ‘Some things in life you just have to savor,’” the 42-year-old star recounted of his son’s deadpan joke. “Which I thought was nice.” (For more with Colin and Michael, tune into E! News tonight, Sept. 11.)

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Scarlett Johansson and Colin Jost Step Out for Marvelous Red Carpet Date Night

After which Colin confirmed, “He is funny. He’s sort of shy sometimes, but he's a gregarious little guy. He's fun.”

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Colin’s glimpse into his and Scarlett’s private life comes as a rare occurrence, as the two often opt to maintain a low profile since tying the knot in 2020.

Scarlett has, however, previously revealed how Rose first adjusted to her big sister duties after welcoming Cosmo in 2021.

"She's pretty neutral about it," the Black Widow star said during an appearance on The Ellen DeGeneres Show in 2021, "which I think is a good thing."

She continued, "I imagine that they'll be very different people. You know, my daughter is a little bossy. I don't know where she gets it from, and she's very headstrong…Well, he's just putting his feet in his mouth. So, he seems pretty laid-back."

Her motherhood journey hasn’t been so chill, rightfully so.

DREW ANGERER/AFP via Getty Images

"It's really tough," Scarlett said during an April 2023 appearance on The Skinny Confidential Him & Her Podcast. "I remember my daughter when she was 2, I said, 'This is great. I don't know what everybody is talking about.' And then she turned 3, and it's like being in an emotionally abusive relationship."

“It's crazy, very intense emotional swings and so bossy and adamant,” she recalled of that toddler era. “And also these huge, constant mood swings...You're up and down constantly."

Babies, on the other hand, are much easier to handle.

"Having a baby is so lovely," she gushed. "They're so cute. They sit there and they love you and then that's it. And you just get love from them."

For a closer look inside Scarlett and Colin’s world, read on…

-Reporting by Ashley Bellman

Super Parents

From Hollywood power couple to super parents, the couple announced the special news that they welcomed a baby boy named Cosmo in 2021.

Green With Envy

In May 2021, the couple proved they know how to have a little fun during awards season. While accepting the Generation Award at the MTV Movie & TV Awards, Colin brought out a green bowl of slime and poured it over his wife. The moment? Iconic.

Round of Applause

When award season came to a close at the 2020 Oscars, Scarlett and Colin were one of Hollywood's most fashionable—and lovable—couples. 

Dynamic Duo

While celebrating her 2020 SAG Awards nominations for Marriage Story and Jojo Rabbit, Scarlett received support from Colin. 

Look of Love

After the show is the after-party! Colin and Scarlett whooped it up at Netflix's 2020 Golden Globes After Party. 

Red Carpet PDA

In between posing for photos in her stunning red gown, Scarlett managed to sneak in a kiss with Colin at the 2020 Golden Globes. 

The Endgame? It's Just the Beginning

The lovebirds shared a laugh at the Avengers: Endgame premiere in April 2019. 

Pretty in Pink

Scarlett and Colin attended the 2018 American Museum of Natural History Gala together. 

The Biggest Night in Television

The SNL actor and Avengers actress celebrated the best in television at the 2018 Emmy Awards.

Met Gala Goals

The Hollywood couple slayed on one of the biggest red carpets in the world when they attended the 2018 Met Gala.

Look of Love

They say a picture is worth a thousands words. But when it was time for Scarlett to celebrate Avengers: Infinity War, all we saw was love in Colin's eyes. 

To Infinity and Beyond

In a rare joint red carpet appearance, the couple walked the carpet together at the 2018 premiere Avengers: Infinity War.

Bringing the Heat

The couple stepped out for the first time together at the 2017 Museum Gala at American Museum of Natural History.

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