this may sound stupid of me but what is a fan fiction? im guessing it is a fan-made story about a game, but im not entirely sure...

That's exactly what it is. In this case it would be fan made stories about Fallout...

=..=

Fan fiction is stories, artwork or roleplaying by fans of something. Fans of Fallout make their fanfic here, Dragon Age fans do it on their forums, WOW fans (when they're not to busy having 62 hour raids) post fanfic on their forums. It's a way to express ourselves and have fun. Take a look at some of it and decide for yourself whether you like it.

I suggest taking a look at The Warren or The Sunshine State, two of the best RPs around.

Fan-fiction is ordinary fiction that uses other people's settings, characters, and themes. as with many things, 90% of fan-fiction is crap. The other ten percent is usually stashed in the bgsforums.

This can get locked now. We've answered the man's questions.

That's kind of the thing the OP would request.