The reality star, 28, and Marty Supreme actor, 30, are "very serious and committed to each other," an insider exclusively tells Us Weekly. "Their relationship is very strong and they have a good rhythm going."
Jenner, for her part, recently said that she wanted to spend the last years of her 20s focusing on "me, my businesses, my work" as well as traveling and "enjoying my kids" during an interview with Vanity Fair published on March 11. "And then, I do want to have more kids."
The source tells Us that Jenner and Chalamet "definitely had a lot of real conversations about their future and what they both want" after he publicly declared his love for the beauty mogul onstage at the 31st annual Critics Choice Awards.
Chalamet thanked Jenner for the "foundation" they have built together as a couple, noting in his speech, "I couldn't do this without you," as he won the trophy for Best Actor on January 4.
When the cameras panned to Jenner, she mouthed, "I love you," while beaming back at him.
"They're not rushing into marriage, but they're totally aligned and have even talked about getting engaged this year," says the insider, who claimed they're also in agreement when it comes to children. (Jenner shares daughter Stormi, 8, and son Aire, 4, with ex Travis Scott.)
"Kylie really wants another baby and has been open about the fact that she doesn't feel like she needs to be married to do that, and they're both on the same page about wanting a kid together," the source explains. "Timothée never thought about starting a family until he met Kylie."
Becoming a parent has been one of Jenner's proudest moments to date, adds the insider, who says she wants at least one more bundle of joy down the line. "Kylie feels she was meant to be a mom and would do it over and over again."
Us Weekly has reached out to reps for Jenner and Chalamet.
The lovebirds were first romantically linked in April 2023 and previously maintained a low-profile connection until making their red carpet debut in May 2025.
It appears that Chalamet has also earned the seal of approval from Jenner's family, as his name was seen alongside hers on the brood's Christmas gingerbread house that same month.
