Another weird mostly-non-MSR story nominated by me. Note the warning!
Title:
To Carthage Then I Came Author:
annakovsky Rating: R
Pairings: Mulder/Samantha, Mulder/Scully, implied Scully/Doggett
WARNINGS: INCEST, more or less. SO BE AWARE.
Summary: Clones of Mulder's sister Samantha are being terminated. Mulder tries to save them.
Also on AO3:
http://archiveofourown.org/works/88125