I really liked the mood and structure of this fic. The description of the street lamps, the pool of light on the desk, this:
Justin slid the loft door shut, its familiar rumble drowning out the tangle of thoughts in his head. Once it came to a stop, he rested his forehead against the cool metal, letting the altered silence settle in around him.
Also, the sex was well done. The emotion and need shone through beyond the physical act itself.