Perhaps it's the absurdity of the conversation captured between Kim and Khloe. Perhaps its the understated conviction with with both Joe and Sophie slid so seamlessly into their respective roles as the famous siblings.
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The clip itself was Khloe explaining to her sister, "I'm so jet lagged from Australia." Joe perfectly underplayed Khloe's flat delivery with his dour expression.
Not even looking up as Kim, Sophie nailed that distracted disinterest as Kim replied, "You are? Why?" But it's the extra detail that really got us as the audio also included the sound of Kim typing away on her phone.
But rather than typing up a message, Sophie was just hammering down on the middle word in the auto suggest feature that has become the central feature of so many silly Facebook games.
And so, the fact that she was so intently focused on her phone while doing nothing but tapping the same spot on her screen over and over somehow made the whole exchange even funnier.
An even better detail is that she appears to be texting with someone named Pete -- a likely nod to Kim's relationship with Pete Davidson -- and that he'd sent her the message, "You have the bombest ass."
That quiet little moment was even funnier than the "punchline," such as it is with Khloe's daft response, "Because I just came back from Australia." Or is it that Kim's question was daft because Khloe had already answered it in her first statement?
Honestly, we're still laughing at Sophie tapping away on her phone. Gold star for added content!