Drawing by spader7
Kili: Uncle…
Thorin: Yes?
Kili: Fili and I have decided to adopt.
Thorin: … You two are too young for that. 
Fili: But we’re going to adopt you. I mean you’re a good Uncle but we want you to be our Dad.
Kili: Do you accept?
Thorin: But you can’t… Yes, of course.

Drawing by spader7

Kili: Uncle…

Thorin: Yes?

Kili: Fili and I have decided to adopt.

Thorin: … You two are too young for that. 

Fili: But we’re going to adopt you. I mean you’re a good Uncle but we want you to be our Dad.

Kili: Do you accept?

Thorin: But you can’t… Yes, of course.