Kendall, who was showing off her lithe frame dressed in a long lace cream frock, even took to the decks at one point.
Scott Disick, 32, was also in attendance with a big group of pals and chatted to Kendall and Kylie inside the party.
Kylie, who is making sure she stands out this weekend rocking a bright orange wig, also briefly turned DJ as she took to the decks to show off her mixing skills.
“Crashing @simihaze set,” she said next to the picture of her at the booth with DJ twin duo Simi & Haze.
Naturally, Kylie and Kendall have shared a number of Instagram shots and Snapchat videos since arriving in Indio on Friday, including one of Kylie showing off her sleek new 'do and another of her flaunting her curves in a pair of tiny daisy dukes.
And you can expect a lot more where they came from in the next few days...
