And I found this: Defying Gravity, a Firefly&Serenity vid by y_fish. It is so awesome that Joss Whedon recommends it. And so does be_themoon, which is how I found it.

Question, for those of you who have read Demon's Lexicon: River Tam/ Nick Ryves = crazy lethal OTP, y/y?

Counting, by puritybrown. Jayne Cobb/ Simon Tam. Bit of a wtf pairing, genius fic.

There are pins and needles in my leg. AAAAARGH.