Irishman and trained pilot Michael McMahon has a little five-year-old brother named Robbie. Robbie suffers from Williams syndrome, which, according to the Williams Syndrome Association, is "characterized by medical problems, including cardiovascular disease, developmental delays, and learning disabilities" that "often occur side by side with striking verbal abilities, highly social personalities and an affinity for music." As a special treat for his little brother, McMahon took Robbie on his first ever flight. This five minute video is a spectacular display of brotherly love and general cuteness. Please listen with both earbuds in to hear all of the two boys' commentary.

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Oh goodness. 

The general stages of watching this video are as follows:

This is cute.

This is very cute. *Breathe deeply* 

"I love you."

"Yes, I love you too, buddy." 

THIS IS BREAKING MY HEART WITH HAPPINESS. HAPPY HAPPY HAPPY HAPPY HAPPY HAPPY SONG.

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"It was a special day," McMahon told The Independent. 

All right, let's put this video in the YouTube Hall of Fame already, which should be a thing if it isn't.

Learn more about Williams syndrome:

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Another fun fact: the elder McMahon brother pointed out on YouTube that they're both single. Just putting that out there.