Oh goodness, I think I know of one of the meme fills that sounds very similar to this.
In it Jensen was a dragons' rights activist type person and he went to get Jared out of a dungeon.
But...I don't know if that's the one you're thinking of.
If it is, I sincerely apologize because I can't even remember which meme it was (kink meme, take the knot meme, etc).
If it's not, I am quite interested to read it as well.

In any case, I really hope someone can come up with it and I apologize for being useless.

Yes that is exactly the one I'm looking for! *nods* Thank you! and you were not being useless! If nobody had found the fic I could have started checking memes I visit...I would have found it eventually...hopefully :D

I'm glad other people got it.
And, more so that other people knew because I was way off base.
Now I too can go save it!