As a die-hard X-Phile, I am still recovering from Season 11. In addition to some of the
best episodes of the entire series, there were lots of important character moments... and one big reveal that still has fans angered to this day: that series bad guy CSM was the father of Scully's Season 8 baby. In talking to Davis, he said he was "as surprised as the audience" to discover that he was the father, and he doesn't know how that came into being. "I don't think [series creator Chris Carter and I] talked about. I just rolled with it," Davis said.
What is interesting is that in "
My Struggle III," the episode in which CSM reveals the baby's paternity to Skinner, they flash back to a Season 7 episode, "En Ami," as the point at which CSM impregnated Scully. "En Ami" was an episode that was written by Davis. He told me that that was not his original intention with that episode. He has no problem with that, but insists that this wasn't some long-simmering plan. "I'd like to say it was, but no.