BFFs! Sofia Richie and Kylie Jenner are having a blast during an epic Kylie Skin girls trip to Turks and Caicos. The A-listers have been enjoying a luxe vacation together and seem like total besties. The daughter of Lionel Richie has been dating Scott Disick for two years and is just one year younger than the Kylie Cosmetics founder — it’s no wonder the beauties are so close.

“My twinny twin twin,” Sofia, 20, captioned a photo of her holding hands with the Keeping Up With the Kardashians starlet, 21, on Instagram on July 14. Both of them had their long nails painted a very natural pinky tone.

Sofia Richie Kylie Jenner Holding Hands Turks and Caicos Trip
Courtesy of Sofia Richie Instagram

Kylie and the rest of her travel companions, including Victoria Villarroel, Yris Palmer and Stassi Karanikolaou have also been ~twinning~ with the billionaire in skimpy swimsuits and matching outfits. However, the makeup mogul and Sofia do seem particularly close lately. The model constantly supports Kylie’s new product drops on Instagram and they even have fun game nights together.

Sofia Richie Turks and Caicos Kylie Skin Trip
Courtesy of Sofia Richie Instagram

Toward the beginning of her relationship with Scott, 36, Sofia was frequently spotted tagging along with him and his baby mama, Kourtney Kardashian. It turns out, the blonde beauty gets along “much better” with Kylie. “Sofia has much more in common with Kylie than the other Kardashian girls, probably because they’re so close in age,” a source exclusively dished to Life & Style back in January. “They share similar interests and spend hours gossiping about fashion, beauty and their relationships.”

Their close friendship may seem weird because the Talentless designer is basically like Kylie’s brother, but she seems to be able to separate that from her friendship with the Frankies bikini model. “Sofia goes to Kylie for advice about adapting to Kardashian life and how to deal with Kourtney when she gets possessive over Scott!” the source added.

We are here for this adorable duo!