While Kourtney Kardashian and Scott Disick have been on vacation together, Kendall Jenner and Kylie Jenner came out to play with Sofia Richie on Sunday.
WATCH: Kendall, Kylie and Sofia Richie’s wild night out
The Jenner sisters joined Sofia Richie in celebrating the birthdays of Tiffany Sorya and Carter Gregory on June 22, 2019.
Dressed up for the 70’s theme, the girls posted photos and videos to their Instagram accounts.
Kylie posted videos of them getting ready, including a clip of Sofia in a silver bra and a 60s hairdo.
The Kylie Cosmetics founder also shared a selfie video of herself in a blonde wig, a glittery pink dress and bright rainbow wedges.
She was joined by her model sister Kendall, who was wearing a leopard-print dress and black sandals.
Kendall, Kylie and Sofia joined their friends for a night of karaoke.
Kendall and Tiffany were filmed singing to “Let’s Dance,” by David Bowie.
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While Richie has been friends with Kylie for many years, she has been dating Scott Disick since September 2017.
Over the same weekend, Scott Disick accompanied Kourtney Kardashian, Kim Kardashian and Kanye West on a vacation to Costa Rica with their children.
Kourtney and Scott share three children together and dated for several years.
They have since been co-parenting their three kids while seeing other people.