Yuukoku no Moriarty - Sherlock Holmes/Louis James Moriarty
All his life, Louis had tried to protect himself, partly because it was his duty, and partly because he did not want to be hurt. Physical injuries did not concern him, but his soul was another matter. Distrust was what held him together, and it had taken a long time before he had been willing to let anyone come even a little closer.
He had carefully built walls, and Sherlock had never tried to tear them down. He had simply found some kind of crack in them, seeped through it, and filled Louis's lungs like a gas before he had even become aware of it.
He breathed him, his heart beating in time with his name.
He dreamed of his voice, and still felt his hands on him days later, when he was alone in the bedroom.
Or: Louis reflects on his relationship with Sherlock during sex.