This might be the cutest thing you see all day!

Jimmy Kimmel gets in the Christmas spirit by testing two brothers' truth-telling abilities with a fake lie detector test.

The late night host tweeted the video on Friday, posting "Kids vs. Lie Detector - holiday edition," along with the funny clip. 

Check out the hilarious (and adorable) video above! 

Even though the test was fake, we're sure the boys may have thrown in a lie or two to get out of being on Santa's "Naughty" list.

Nevertheless, Kimmel helped the boys kiss and make up and move forward from their seriously cute fight.

Which line was your favorite? Tell toofab in the comment section below! 

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