Scarlett Johansson’s appearance on “Saturday Night Live” was such a hit, she ended up making out with “Weekend Update” co-host Colin Jost at the afterparty, multiple sources exclusively confirmed to Page Six.

ScarJo had appeared in the cold open for Saturday’s “SNL” season finale, hosted by Dwayne Johnson, in which she played Ivanka Trump.

After the show, the actress, who is currently going through a divorce, hit it off with handsome comedian Jost at the boozy afterparty held at the ice rink at Rockefeller Center, which raged into the early hours of Sunday morning.

A witness told Page Six, “Scarlett and Colin were making out at the bar at the ‘SNL’ season finale party at 30 Rock . . . They would make out a bit, then go back to talking,” says the source. “They were at the bar in front of everyone . . . they made out at least twice . . . Then they went back to talking and hanging with other people.”

Another source confirmed, “Scarlett and Colin were flirting and canoodling in full view of everyone at the afterparty, including the ‘SNL’ cast and crew. They were laughing and seemed to really hit it off.”

Scarlett, who had donned a blond wig to pose as Ivanka in the NBC hit show’s opening, in which the “Trump family,” including Alec Baldwin as the president, sang Leonard Cohen’s “Hallelujah.”

ScarJo filed for divorce from her French husband, Romain Dauriac, in March after less than three years of marriage. They share a 2-year-old daughter, Rose.

Around the time of the divorce, she gave an interview to Playboy magazine, saying she didn’t believe it was natural to be monogamous. Scarlett said, “I think the idea of marriage is very romantic; it’s a beautiful idea. And the practice of it can be a very beautiful thing.” The NYC native added, “I don’t think it’s natural to be a monogamous person. I might be skewered for that, but I think it’s work. It’s a lot of work.”

Reps for “SNL,” Johansson and Jost didn’t immediately get back to us.