Fic Title: Second Chance
Pairing(s): Sam/Dean/Castiel main, established Dean/Castiel, side Sam/OMC/OFC, side Sam/Jess, side Dean/OMCs, side Sam/OFCs
Word Count: 100k
Tags & Warnings: BDSM AU, Stanford era, professor!Cas, dom!Cas, sub!Dean, switch!Sam, bondage, mild pain play, mild infantilism, spanking/discipline, anal sex, oral sex, blowjob, self-destructive behavior (Dean), daddy kink, anal fingering, edging, orgasm denial, nipple play, nipple clamps, vaginal sex, rough sex, manhandling, tentacles, voyeurism, masturbation, exhibitionism, crying, alcohol/parties, please see notes for extra warnings regarding Dean/OMCs
Summary: Sam is running himself ragged at Stanford. Not enough sleep, too many hours studying, and no social life to speak of. When the board finds out about it, he’s assigned to Professor Novak, one of his professors, who takes him in and helps him balance out his life. Sam wasn’t expecting to find his brother at Cas’ house, and he certainly wasn’t expecting Cas and Dean to be in a twenty-four-seven relationship and Dean as Cas’ submissive.
Fic Link: AO3
Art Link: AO3 (chapter 15 of the fic)
Written for: @spnmegabang