"They are both committed to making it work," a source tells PEOPLE of Jenner and Chalamet Kylie Jenner and Timothée Chalamet are enjoying their romance. Amid the holiday season, Jenner and Chalamet’s relationship is still going strong.

To say that Kylie Jenner and Timothée Chalamet are still going strong would be accurate, but it would also be an understatement. According to a new report from People, things have been going so well that the couple is taking a big step forward in their relationship—or, more specifically, in Chalamet's relationship with Jenner's kids.

The insider revealed, "They had an early Christmas celebration together before Kylie spent Christmas Day with her family.It took Kylie a long time to introduce him to her kids. He's part of the family now,

Kylie Jenner and Timothée Chalamet are firmly establishing their relationship, which is only growing stronger. Sixteen months into it, they have found a comfort zone that suits them to the tee. He is a part of so much of her life;