Supernatural Story Finders

Hi, this is my first post on this community. I hope to do everything ok.

I'm searching for fics in which there is a BDSM relationship focused on discipline and punishment from the Dom to the bad Sub. I'd prefer if there is strong love between Dom and Sub, so the punishments are not for pleasure, only for learning a lesson. guilty!Sub willing to accept whatever the Master decides because he knows that he's been bad. Emotional!Sub scared to be sent away for his mistakes. The trasgression is not important (disrespect, brattiness, forget the rules ecc) and not specific punishments, too. I prefer spanking, caning, CBT and similar, painful but with no lasting damages. Whatever punishment can be effective on the emotional side of the Sub is okay, too. No safewording, no blood. I wish to see aftercare, even if it arrives after a couple of days to stuck the lesson better. Nothing is too harsh, so don't worry about it. Crying!Sub it's ok, for guilty, fear (not of Master but to be sent away) or pain.
Other than BDSM realtionship, it's ok A/B/O realtionship and puppy!play with the puppy punished.
I prefer J2 or Destiel (no preference for top or bottom between J2; in Destiel, bottom!Cas is better but i'll take bottom!Dean, too), but I gladly take Dean/Sam, Sam/Castiel (top!Castiel) and Dean/Sam/Castiel, too. No Samifer or Sabriel, please.

Other fics that i'd be glad to read are the ones with a bad Dom/Alpha and a damaged Sub/Omega who thinks to be useless and craves to serve another Dom/Alpha better. I'd prefer a slow relationship between the two, with Dom/Alpha caring and loving and Sub/Omega slowly becoming more confident. Discipline is good, too, but nothing harsh that could ruin the Sub/Omega's progresses. Dom/Alpha has to know his boy's limits.
I'd prefer only J2 for this (with Sub/Omega!Jensen, if it's possible and caring Dom/Alpha!Jared) or Dean/Sam relationship.

Third type is lighter. I'd love to see Sam as the big brother for once, so deaged!Dean fics. No loss of memories, Dean conscious to be the big brother but willing (after some time or right away) to be taken care of by Sam.

Specific fic is a spanking fic. I seem to recall that the boys were in a relationship and Sam made a mess in the hotel room he and Dean were staying while his brother was gone, and he didn't put the salt lines, so when Dean came back, he spaked him and at one point he handcuffed him for something (struggle or because he told him to stay quite and he didn't) and Sam started to cry while getting the handcuffs because he hated to be handcuffed. I also remember that Dean tells Sam something like "If you wanted a spanking, you could have ask instead of made such a mess" after punishment is over. I thought to have it bookmarked, but obviously i was wrong >.<

Sorry for bad english, i'm italian and i did the best i could! Hope you guys can help me! Thanks in advance!