Timothée Chalamet has clearly won over Kylie Jenner's entire family - including her older sisters. "You threw a little dinner in Malibu, [and] it was so nice," Khloé Kardashian told sister Kim Kardashian on the Wednesday, January 28, episode of the "Khloé in Wonderland" podcast. "It was just, like, 12 people. It was really small. We had so much fun." Khloé, 41, and Kim, 44, further gushed that they were "really proud" of Jenner, 28, for attending the impromptu bash. "Kylie had the best time 'till 1:30 in the morning," Khloé said. "She stayed after me." Inside Timothee Chalamet's 'Seamless' Dynamic With Kylie Jenner's Family According to Kim, Jenner was "the first one there and the last to leave." "I was so proud of her, and [she] and Timothée had the best time," Khloé said. "I had so much fun. I'm exhausted right now." Jenner has been dating Chalamet, 30, since 2023, who quickly earned the approval from her famous family. Vittorio Zunino Celotto/Getty Images "Kylie's sisters and Kris have really embraced him. He always has a spot at the table for every holiday and is included in all of their plans," a source exclusively told Us Weekly earlier this month. "They all really like him for her and think he has brought out a softer side to Kylie." According to the insider, Jenner and the Oscar nominee are also "basically" living together. "Kylie has never dated someone like him and it's been refreshing because they have a very easy chill relationship," the source told Us. "Kylie will stay at his house when she doesn't have the kids, or when she wants to be in the city, and he spends a lot of time at her house in Hidden Hills." Timothee Chalamet and Kylie Jenner's 3-Year Relationship From the Beginning Jenner shares daughter Stormi, 7, and son Aire, 3, with her ex-boyfriend Travis Scott. The insider further told Us that Stormi and Aire have even formed bonds with Chalamet. "The kids love him and Timothée has been integrated seamlessly into their lives," the source added to Us. "It took awhile for Kylie to introduce them, but now things are very normal and he spends a lot of time with them." Jenner and Chalamet made their red carpet debut in 2025, soon becoming staples at the likes of the Academy Awards and the Golden Globes Awards. Chalamet even gave his girlfriend a sweet shout-out when he won a Critics Choice Award earlier in January. "I'll just say, thank you to my partner of three years. I love you," Chalamet said. "I couldn't do this without you. Thank you from the bottom of my heart." Kylie's Family 'Likes' Timothee Chalamet, Thinks He's 'Different' From Exes Jenner subsequently appeared to mouth, "I love you," in response while applauding Chalamet's victory. Days later, Chalamet publicly thanked Jenner when he won another award at the Golden Globes. "My dad instilled a spirit of gratitude in me growing up, 'Always be grateful for what you have.' It's allowed me to leave this ceremony in the past, empty-handed [with] my head held high, grateful just to be here," Chalamet said in his Golden Globes speech. "I'd be lying if I didn't say those moments didn't make this moment that much sweeter. For my parents, for my partner, I love you. Thank you so much."