Because they're so canon.
Fics:
The Clues In Front Of Us by
solaras. It's a WIP, but steadily updated every few days, and it's absolutely what I was looking for in this pairing. (more Gordon/Bruce than Gordon/Batman, mind you :D)All Kinds of All Right by
sua_lay. Gordon, Batman, and Jimmy Gordon. It's adorable, and sad, and lovely. Could be pre-slash, doesn't have to be, but it's wonderful.Reveal Batman/Gordon, unmasking.
Anomaly, Bruce/Gordon.
First Priorities by
jen_in_japan. Commissioner Gordon gets locked up with a most useless person ever, Bruce Wayne. It's brilliant. Gen, suppose.Getting Close by
jen_in_japan. Jim Gordon doesn't know how he ended up with a playboy billionaire for a lover, and he tries to keep it that way. Gordon/Bruce. Dropping Masks by
rhye. Bruce/Gordon. 