"Kendall and I are serrrrving and of course we have the side eye queen #CTC4Life," Khloe wrote on Instagram.
The reality star wore a sparkling green Balmain mini dress to the bash.
"Most beautiful christmas gift ever! @olivier_rousteing merry Christmas eve," Kylie wrote on Instagram.
The Keeping Up With the Kardashians matriarch opted for a Balmain mini dress as well.
"Me, my mom, and a photobomb," Kylie wrote on Instagram.
"Mistletoe alert," Kourtney wrote on Instagram.
The reality star's friend Carlie DiBello shared this pic on her Instagram page.
"I found a picture with Santa!!! I loved my jumpsuit last night!!! @michaelcostello had me looking right," she wrote on Instagram.
"I can't find my picture with Santa...so I'll post this picture with my little elves @jonathancheban @forevermalika. Merry Christmas my Angels," Khloe wrote on Instagram.
"Nobody throws a better party..I freaking love you @krisjenner," Cheban wrote on Instagram.
The reality star appears with one of the family's longtime friends and other pals.
"Reunited for the holidays is the best gift.." Cheban wrote on Instagram.
Kris Jenner's Christmas display.