The challenge word is Adolescent and Sam, Dean and Charlie are dealing with a troublesome Fire-Drake.
A longer version of this drabble, should you choose to read more is posted at chapter 10 of the story 'A Moment with My Brother'.
"And you know the best bit?"
We shake collective heads, soot particles raining down as we do and even Sam has to smile at Dean's obvious pleasure.
"It's only an adolescent, imagine what it'll be able to do when it's a full grown dragon."
"How on earth can you possibly know that?"
Sam muses, irritation at the loss of his pant leg to the fiery little sucker bleeding some of his attention from his brother's random observations and Dean sighs.
"Sammy, GoT, man!"
The younger man quirks a quizzical eyebrow and Dean pouts in disappointment at his sibling's StormBorn ignorance.
Thanks for reading. I hope you enjoyed it.