Scarlett Johansson’s daughter Rose has a baby brother! Colin Jost announced that he and his wife welcomed a son recently with the most adorable Instagram post. The Saturday Night Live star took to Instagram to announce the news, writing, “Ok we had a baby. His name is Cosmo. We love him very much.”

The news comes just one day after it was announced that Scarlett was pregnant, which her husband Colin let slip at a standup show over the weekend, according to Page Six. “We’re having a baby,” he told the audience. “It’s exciting.”

The baby boy is Scarlett Johansson’s second child, but her first with Colin Jost. Her first child, 6-year-old Rose Dorothy, was with her second husband, Romain Dauriac, former editor of the French magazine Clark.

The Black Widow actress and Colin Jost were married secretly last year during the Covid-19 pandemic, a year after their engagement in 2019. According to Scarlett, Colin “killed” the surprising proposal with “a whole James Bond situation.”

“He’s very charming and very thoughtful and romantic” Scarlett told Ellen DeGeneres when the couple got engaged. “Even if you kind of imagine what that moment’s gonna be like, it’s still a beautiful moment.”

The wedding was later announced via a Meals on Wheels America Instagram post, joking that the pair was “Jost Married.”

“I think just keeping it intimate and small made it feel intentional,” Scarlett later said. “We wanted it to feel like it had an intentional intimacy as opposed to being something that felt like we were restricted by all these things.”

Scarlett Johansson and Colin Jost at the world premiere of Marvel Studios’ ‘Avengers: Endgame’ held at the Los Angeles Convention Center. Photo credit: BACKGRID

Last year, Colin Jost told USA Today that a “flip switched” regarding his idea of fatherhood in his future. “It’s definitely on my mind,” he said. “It’s gonna be, I’m sure, very challenging, but I also think it could be really fun.”

The couple first met back in November 2010, when Scarlett Johansson hosted Saturday Night Live for the third time in her career. She appeared in a sketch that Colin Jost has written that parodied the television show Teen Mom.

“That’s my first memory of him,” she later told Hollywood Reporter. “He seemed very confident at the time.”

Colin’s SNL co-star Kate McKinnon allegedly set the two up on a date sometime in Spring 2017, and then got intimate in public for the first time at a cast party. Later that year at the Emmy Awards, Colin gushed about the romance, calling Scarlett “wonderful.”

In 2019, Scarlett Johansson’s publicist Marcel Pariseau confirmed that the couple was engaged, and a year later they were married.

Colin Jost is Scarlett Johansson’s third husband. Many fans may not realize that she was first married to actor Ryan Reynolds.

“The first time I got married I was 23 years old,” she told Vanity Fair back in 2019. “I kind of romanticized it, I think, in a way.”

After appearing in the film Marriage Story, which features a heavy plot surrounding divorce, the actress reflected on her past relationships, especially her most recent marriage to Romain Dauriac.

“I had some kind of shared experience with the character, or with any person going through a divorce, really,” she said of the film. “I understood the bittersweetness of it somehow, in a way. All those kind of in-between feelings that the character has. I understood them because I had gone through them myself.”

Johansson was recently in the news for suing Disney over their release of Marvel‘s Black Widow on Disney+ over the pandemic. Scarlett Johansson alleged that she lost money that the studio had promised her, since her contract relied on box office sales, and not direct-to-home streaming numbers.