Characters & Pairings: Sastiel, Wincest, Wincestiel, John Winchester, Amara
Word Count: 8,574
Tags: AU, fluff, angst with a happy ending, depression, nightmares (mentioned), jealousy, voyeurism, older!Sam, younger!cas, younger!Dean, top!Cas, dom!Cas, bottom!Sam, implied switch!Sam, implied bottom!Dean.
Summary: When Cas is placed into twelve-year-old Sam's arms for the first time he forms an instant attachment with the toddler. Over the years Sam, Dean and Cas become inseparable - until Sam goes off to college, that is. After Cas turns eighteen and Sam moves back home Dean's distant and Sam misses how it used to be. One thing that remains the same? The bond Sam shares with Cas.
Link to fic: Ao3
Link to art: Ao3, LJ, Tumblr