For a second, Kili only blinks down at my fist, but the term is a pretty easy one to understand even without explanation and he balls his own hand into a fist and taps it against mine.

Grinning wide, I lightly take his wrist with my other hand, guiding it. "Knuckle to knuckle," I tell him before bumping mine against his. "Like this. It's a bro thing. But I'm gonna give you a hug, too."

And I make good on my promise, quickly wrapping my arms around Kili's shoulders and drawing him in tight.