Clay invited Bud to his birthday party.
Bud has gone to birthday parties before, but they have always been for the children of my friends. He has not been invited to his very own friend's birthday party before.
I'm holding my breath until I can ask Clay's mom if they have a dog, which will be the deciding factor on whether or not Bud will actually be able to attend the party. But even if we ultimately have to decline, it will not diminish the big picture here: Bud is welcome; he's wanted; and he's interested in the idea of going to Clay's party. And that big picture is really, really big.