First of all, I want to pimp like crazy Zeen's Be more cruel, Love, and so be kind, the story that was written for me. I requested Finrod/Caranthir in a story that included an explanation of the hatred between their houses. Zeen's story is everything I could have wanted and then some. It is poignant and dramatic and erotic, and it is very funny in places, so much that I lol'ed quite a bit while Bobby was fixing supper tonight. It was one of those stories where you look at the word count, think, "Oh, I'm going to be a while reading this," and then it's over way too soon. I could have read a novel's worth of her characters and her vision of Valinor. Go read it!
I've also posted my own, for Urloth, The Sovereign and the Priest. You nerds of English usage might have noted the italics ... yes, it ended up 40,000+ words, safely in the territory of a novella. Go ahead and throw rotten things at me. I know I am long-winded and an overachiever. ;)
Anyway, here is the summary:
Long ago in Valinor, Finrod and Celegorm faced opposing expectations, one a symbol of Eldarin potential and the other abandoned to a life of leisure, and neither fully certain of his place among the Noldor. Now, after the Dagor Bragollach, their fates collide when Celegorm and Curufin, fleeing the destruction of their realm, take harbor in Nargothrond. As both work to mend the myriad hurts between their houses, each discovers a secret about the other and, most surprising of all, the desire that grows between them. But as each of their oaths begin to call, their growing love might not survive the inevitability of their fates.
This is very much an adult story (Finrod/Celegorm) and also contains elements of dubious consent, so if either of those are likely to bother you, you'll probably want to skip this one.
The Sovereign and the Priest is on the SWG and AO3.