Dean:
Grimm.
Sam:
Once Upon a Time.
Castiel:
Sherlock (Castiel empathises with the high-functioning sociopath).
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Supernatural Preferences
FanfictionLook at the title. And now back at the description. Please repeat this step a few times. Now. Are you ready? THEN LET'S READ SOME SUPERNATURAL PREFERENCES!!! :D
The TV Show You Both Watch
Dean:
Grimm.
Sam:
Once Upon a Time.
Castiel:
Sherlock (Castiel empathises with the high-functioning sociopath).