The former Disney starlet, 21, who was recently photographed en route to do some daytime dining with Kendall, 18, joined the model and sister Kylie, 16, on Friday night at West Hollywood hotspot Bootsy Bellows.
The siblings, who just got back from a heavily documented trip to Thailand, hung out with Gomez in the VIP room of the club in the very back corner.
Gomez, with her hair in an unkempt ponytail, sported a varsity jacket and skirt, while surrounded by other friends who huddled around her to where she wasn't easily visible.
But at one point, she hit the dance floor with Kylie, where the two ladies and some of their friends danced to Jay Z's "Change Clothes" and Outkast's "Rosa Parks." A puppeteer, holding a puppet who was a character from A Nightmare Before Christmas, eventually approached the group and they all danced with it, seemingly getting a kick out of the experience.
Kendall, on the other hand, was all about honoring the 23rd birthday of Teen Beach Movie's Garrett Clayton, who she hung out with for a little bit at his table. The TV personality, who was clad in a long, black dress that had fringe on the bottom, then joined Kylie and Gomez, who were very giggly and excited, while Kendall seemed a little more reserved.
The trio clung together as they exited the party spot just after midnight.
Gomez documented her bonding sesh with Kylie, posting an Instagram shot of the sexy young stars lying on their backs in different directions with the accompanying caption that said, "kylie&roses."