“We’re flying!” An Irish pilot brought his five-year-old brother flying for the first time and his reaction was adorable.

Michael McMahon, a pilot, organized to bring his little brother Robbie for a flight over the Irish countryside. Robbie suffers from a rare developmental disorder, Williams Syndrome. The little boy’s squeals and cheers were just heartwarming. You’re sure to well up.

On his video post, which now has over 37k views, McMahon wrote “My brother Robbie has Williams syndrome and I had the honor of taking him flying which was a massive thing for Robbie.”

Great joy! He definitely made Robbie’s day as he shouts “Happy! We're flying!” and his older brother cheers.

Read more: Irish Catholic Sex Ed for Girls video from the 1980’s goes viral

Although the dotey Robbie does seem equally excited about the prospect of dinner with his Dad and brothers, which makes him all the sweeter.

As the plane approaches for landing, Robbie tells his brother “I love you,” and McMahon replies “I love you too, buddy.”

The pair make a safe landing, and Robbie sticks his thumb up and shouts: 'I'm back!'

Williams Syndrome is characterized by problems including cardiovascular disease, development delays and learning disabilities. Those with the syndrome tend to have elfin features. The symptoms occur alongside impressive verbal abilities, highly sociable personalities and an affinity for music. Common features include feeding problems, dental abnormalities, kidney abnormalities, hernias and attention deficit disorder. It affects one in every 10,000 people.

Read more: Irishman’s powerful video about his fight with depression and suicide goes viral