The actress and her new beau attended the 2017 Museum Gala together.
Johansson ― who wore a red vintage Yves Saint Laurent gown, according to People magazine ― was first linked to the “SNL” writer and “Weekend Update” anchor in May, when they were spotted together at the show’s season finale after-party.
“She’s wonderful,” Jost told “Entertainment Tonight” at the Emmy Awards in September. “She’s pretty cool. It’s hard to have a lot of complaints, she’s pretty awesome ... The first time she hosted was the first year I was a writer on the show. So, we’ve kind of known each other since then. She’s the best.”
Johansson split from French journalist Romain Dauriac in January, after two years of marriage. They have a daughter, Rose, together.