Dean/Sam/Castiel
From Super-wiki
Dean/Sam/Castiel, often called “Wincestiel,” refers to Fanfiction in which Dean, Sam and Castiel are involved in a Threesome.
“WinCasWin” denotes a poly relationship in which Sam and Dean are both with Cas but are not in a sexual realtionship with each other.
- See also Sammich, OT3 and Team Free Will
Links
- Wincast - fanfic comm for the pairing Dean/Sam/Castiel
- Wincestiel fanic on AO3