Yep, that's right, I've actually written something. I started this in (hem hem) August, although obviously I haven't been working on it constantly since then, more like in fits and starts.
Anyway, it's a peice of Remus-centric Gen, set at the end of GoF and featuring Remus' father and Sirius:
Title: Plus ca change
Rating: K+
Summary: When Sirius turns up on Remus' doorstep after the third Triwizard
task, it triggers a bout of reflection for both men.
If you're interested, it can be found
here.
(Incidentally, I've changed my name at ff.net in order to be consistent throughout fandom.)