1. I've got a theory about how the rest of the season is going to pan out - specifically that Sam and Dean being soulmates (as mentioned/implied by Ash in 5.16) will be directly related to how they get Sam's soul back from the Box. I'm dying to read some fic along this line, but can't seem to find any. Any recs would be greatly appreciated!

2. Any stories that address the fact/implication that they're soulmates.

Preference is for Wincest, but will happily read well-written Gen. Thanks y'all!