"They are very serious. Everyone in her family loves him," a source tells PEOPLE following the couple's PDA-filled outing at the 2025 Golden Globes

The appearances come amid Timothée's star turn in the Bob Dylan biopic A Complete Unknown, which has earned him BAFTA, Critics Choice, and Golden Globe award nominations — and a source tells People that Kylie is "having fun" being by his side during this peak moment in his life.

While Jenner didn’t accompany Chalamet to the A Complete Unknown premiere in Paris, continuing to keep a more or less low profile where they can, the couple shared an intimate date night straight after. They were photographed enjoying dinner at chef Cyril Lignac’s restaurant, before heading back to the elegant Hotel Royal Monceau.

Kylie Jenner and boyfriend Timothée Chalamet had the ultimate date night following the Paris premiere of his film, 'A Complete Unknown.' See her glam and sexy outfit!

There are a few celebrity couples that are so stylish, their relationships are still revered to this day (even though some of them have been broken up for decades). Angelina Jolie and Billy Bob Thorton, Pamela Anderson and Tommy Lee, Hailey and Justin Bieber —the list goes on.

The makeup mogul “has never felt like this about anybody else before and definitely sees a future with him,” the insider says.

Kylie Jenner's family shows support for relationship with Timothée Chalamet after Golden Globes date night. The reality star's mom Kris Jenner and sister Khloé Kardashian gave pictures of the pair’s glamorous date night their seal of approval on social media.

Kylie Jenner and Timothée Chalamet stepped out for a late night dinner in Paris wearing contrasting outfits that led to some comparisons.

Kylie Jenner and Timothée Chalamet stepped out holding hands after the Paris premiere of A Complete Unknown on Jan. 15. See photos and video of their romantic date night in the City of Love.

It's no secret that Timothée Chalamet is a big fashion fan. From the bejeweled harness he wore to the 2019 Golden Globes to his backless Haider Ackerman jumpsuit at the premiere of his 2022 film Bones of All,