Los Angeles, California - Is Hollywood's newest power couple officially locked in? Kendall Jenner and Jacob Elordi are fueling massive romance rumors after a string of high-profile sightings – and things are reportedly getting serious fast.

New couple alert?

Per an insider who spoke to Page Six, the 30-year-old supermodel and the Saltburn actor have become closer than ever following a recent trip to Kaua'i, Hawaii.

While the vacay started out as a casual getaway, the tropical paradise apparently changed everything for the rumored duo.

Cardi B Cardi B jokes about the heat at son Wave's baseball game: "I'm ready to pass out!"

"Kendall really didn't expect to be this into him this fast, but Hawaii kind of changed everything," the source revealed.

The tipster added that the secluded trip allowed the two to get "super close," completely solidifying their connection.

Back in LA, the pair kept the momentum going on a double date with Kylie Jenner and Timothée Chalamet.

"It's been really fun for her and Kylie being able to hang out with guys who genuinely get along, " the source added, noting they haven't had that in a long time.

As things get unexpectedly serious, Kendall is reportedly "really happy" with how easy everything feels, and her inner circle can totally see the spark.

"Jacob's just a really good guy," the insider shared, adding that "he's super respectful and easy to be around."