Ben Affleck & Matt Damon's throwback pic is the cutest

Pull up a pew and take a sip from this, the biggest cup of 'Nawwwwwwwww' going.

Everyone was going nuts for #NationalBestFriendsDay yesterday and one of the cutest people to crawl out of the woodwork for it was Ben Affleck, who celebrated his lifelong friendship with Matt Damon with a post on Instagram that simply read 'This guy'.

And they're as close as ever still.

It's just guy love, that's all it is.

Did you share timeless moments with your bestie?