Each time I look at this, I just imagine how badly the discussion between Jon and Jorah on the way to the boat must have gone:
Jorah: "That's a beautiful sword, King Jon..."
Jon: "Oh, yes! It's...it's actually Longclaw..."
Jorah:

"My family's sword!?!? Why do you have it?"
Jon: "Your father gave it to me when I saved him from an undead assassin."
Jorah: "...Oh. That's...that's reasonable. How close were you two?"
Jon: "I was his personal steward for a time, almost like his hand picked successor. Unfortunately, when we were separated, there was a mutiny, and he was murdered."
Jorah:

"Give me their names, so I may avenge my father!"
Jon: "I, uh, already did that. Wiped out every single mutineer. And my pet dire wolf ate the actual murderer.

Then, even though there was some dispute at the Wall, I actually did 'inherit' the Old Bear's job."
Jorah: "That's... That's... Thank you for avenging my father. But how did you become King of the North?"
Jon: "Long story."
Jorah: "Well, we're going to have plenty of time to-
Jon: "Lyanna Mormont acclaimed me king, and then everyone followed her example."
Jorah:

"Little Lyanna? She acclaimed you king? She's in charge of House Mormont?"
Jon: "Oh yes! She's very good at her job! Inspiring! Wise beyond her years! And actually kind of intimidating! She's actually one of the best leaders in the North. And luckily for me, she looks up to Davos like a grandfather, and to me like an honorary uncle!"

t:
Jorah: "...ah, very good. Ah, Kaleesi!

Your grace."
Dany:

"Sir Jorah!"

"King Jon!"
Jorah, deep down inside:
