Clark and Lex discover online fandom.
I am looking for an older fic, I am pretty certain it was posted to livejournal. It is post-rift, Clark is working at the Daily Planet and is waisting time and discovers an online forum about Superman/Lex, I think somehow Chloe turns him on to it. Then he discovers fanfic and winds up contacting Lex over it. At one point they reconcile and Clark uses a line from one of the online fanfics in public. I am fairly certain it was abandonned but the author stayed in the community. My googlefu has failed me on this one. It is well worth it if someone might know where it is.