Ben Affleck honors BFF Matt Damon on National Best Friends Day

Ben Affleck joined the flock of Instagrammers posting celebratory photos in honor of National Best Friends Day by sharing an adorable collage of his favorite guy Matt Damon A youthful-looking Damon appears to have pushed his buddy Ben’s face into his cake, as best friends do Affleck captioned the adorable post, “This guy" #NationalBestFriendsDay