Title: The Scientific Process of Sex
Author:
andrealynFandom: Fantastic Four Movieverse
Pairings: Sue/Reed, Johnny/Reed
Rating: NC-17
Summary: Reed's a scientist first and foremost and Sue would kill him if she knew he was experimenting on their private life.
Only Reed Richards could refer to mind-blowing sex as "fascinating". Fun and saucy and all three characters are wonderfully represented - Reed views everything through scientist goggles, Sue is far too understanding, and Johnny needs to stop talking. The author mentions this is intended as the first in a three-part series, although I can't find trace of the others and this reads perfectly well on its own.
Link:
http://community.livejournal.com/fantastic_4_fic/3871.html