OK, not technically a cross-over, but, to make sense of the story, you must be familiar with characters from both franchises. Sheldon from TBBT, as we know, writes fan fiction. In this story, he finds himself upstaged by the most unlikely member of his group, who, like he, writes a story for the Firefly universe. I imagine Robert Carlyle as Hamish with Jennifer Coolidge his wife.
Rated: T - English - Humor/Romance - Chapters: 6 - Words: 23,889 - Reviews: 43 - Favs: 8 - Follows: 17 - Updated: 3/1/2014 - Published: 1/19/2014 - Mal, Leonard H., Sheldon C., Penny - Complete