No. 88

Prompt: Chuck, Chuck Bartowski/John Casey, Casey starts off as the cover boyfriend but develops real feelings.
http://comment-fic.livejournal.com/693334.html?thread=91236182#t91236182

When Casey got the file and read that the mark was gay, he was a little annoyed and a little nervous, because none of the guys knew about him, and the first time he introduced himself as Chuck's boyfriend, he was pleased with how steady he sounded; the hundredth time he introduced himself as Chuck's boyfriend, he felt completely unsteady, and he knew his professional objectivity was completely compromised, but with the way Chuck kissed, he really didn't care.