Post Mortem, or How Desmond Saved the World (But Not the Junkie)

I wrote this intending it to be Desmond/Charlie, but I guess it doesn't necessarily HAVE to be interpreted that way... anyhow, I do believe this is one of the very first Desmond/Charlie stories written after the season finale, seeing as how I finished it at 12:30 the night the finale aired, so- enjoy?