Any good romance fics with Luna as a transcolt? Or trans-mare?

5066976 in my opinion, Rarity, Rainbow Dash, and Applejack fit that roll much better, Luna... that would be ooc for her personality
Though I have not read anything even remotely related to the topic your searching for, good luck. I doubt there is a story with those... specifications, unless you count Futanari or R63, then there's plenty of stories to choose from.