Wait … Mulder and Scully had a second child? When did that happen?? And how!?
Just hold your horses, there. It didn’t happen. Technically. But that’s the beauty of fanfiction: whatever you dream up in your head can suddenly happen in your favorite fandom. All you have to do is write it down.
If you’ve been living under a rock (or, more generously, not that invested in entertainment) you may not be familiar with the concept of fanfiction. Basically, it’s fiction featuring characters and other elements from a particular fandom (TV series, movies, books, video games, etc.) written by a fan. If you think that’s a lot of “fiction” and a lot of “fan” in one sentence, you’re starting to get the idea. To put it more simply: it’s a story written by an author who shamelessly steals someone else’s copyright. Authors don’t get paid, but they don’t get sued, either. Fair enough.