Khloe shared the Instagram snaps on her Twitter account with heart-warming captions that showed just how close the pair are.
"My spirit isn't the same unless she's near @kyliejenner," Khloe wrote.
She wrote an uplifting message to accompany the next picture of the duo, "Where there is love there is life. She is my ❤"
Newly-blonde Kim indulged in a couple of 'selfies' using the hastag '#selfiesonset'. She had clearly enjoyed filming with her nearest and dearest and signed off from Twitter for the night by writing, "Long beautiful work day with the family! Shot a very fun Christmas special! Can't wait to share more later! Night! Xo"
Her and Kanye West's baby daughter North was nowhere to be seen but fans will be keeping their fingers crossed that she makes an appearance on the show.
At the weekend, mum-of-two Kourtney revealed how her daughter Penelope and North West are the best of friends.
"The second she [North] walks into the room, Penelope gets so excited," the new aunt said.
She added that 14-month-old Penelope is "just in awe" of little North, who is called Nori by her family and friends.
She also revealed that her eldest child , Mason, 3, is not so sure of the Kardashian clan's latest arrival.
"I think he gets a little jealous because he and Kim were so close and so he doesn't understand because he's not the big centre of attention," Kourtney told PEOPLE magazine.
"I don't think [Kim] knows what to do; she's just like 'You don’t like me anymore?'. She feels like he … is getting older and changing, and I think she gets confused and doesn't know how to handle it. He's like, 'Why don't you like me anymore?' cause he sees her with the baby ."
The eldest of the Kardashian sisters Kourtney spoke about her baby niece at the LA premiere of Thomas & Friends: King of the Railway on Sunday.
The 34-year-old mum-of-two assured the press that her and Scott Disick's son isn't being left out.
"I give him so much attention, and he gets so much attention from everyone else that I'm like I don't even know," she said.