A few out of the roleplay warnings:
This is a concept that came into my head involving Exalted, so understanding the game is a very good idea.
I intend to use Smiling Shadow in a game at some point, and the other player's character will make an appearance as her background Mentor 5. That powerful.
Now, let's get to the fun. :) The idea for this story is simple: A newly Exalted Night caste Solar falls into the hands of their ancient and powerful Lunar mate. In the First Age, the Solar was aggressive and dominant in the relationship, but now... The Lunar is thousands of years old, and their poor mate is so very confused. What do they do? Take complete advantage, of course. :p
The main thing is that the end result is that Smiling Shadow will be submissive to her mate, though her self-worth may otherwise be intact. Details and information will need to be discussed, to figure out how they meet, and where to take the story. It should be about the in-story span of a year or so.