Firefly: "The Adventure of the Stolen Heart" (Simon/Kaylee)

Title: The Adventure of the Stolen Heart
Fandom: Firefly/Serenity
Characters: Simon/Kaylee, River
Timeline/Spoilers: Set post-Serenity. No spoilers. Well, maybe really, really oblique spoilers. So oblique you wouldn't know they were spoilers unless you were spoiled, though.
Rating: R
Summary: Simon, Kaylee, and River run a mission together. In the midst of crime, they plan for Christmas. For jillrenay, in the Simon/Kaylee fluff-a-thon. (Fluff is hard, yo.) jillrenay wanted “Simon shopping, Kaylee bubbly and in the spirit of the holiday, [and] River telling Kaylee a secret about Simon in riddles.”

( The Adventure of the Stolen Heart )