Supernatural Story Finders

Both fics found. Links in comments.

Looking for a specific fic and here's what I remember, though I'm pretty hazy on the details.

Something was wrong with Dean and John. They were either possessed by demons or Evil version of themselves. I think it was Sam/Dean before Sam left and went to live at Bobby's where he worked on developing/controling his powers so he could attempt to free Dean and John or destroy the wards they placed around the location they were living. I think he might have been getting help from a witch or psychic and the Amulet may have also been involved.  Once he's powerful enough he goes back to Dean and John and destroys the warding. They take him in, and 1 paragraph describes them keeping him in bed for three days, having almost constant sex with him and Sam sleeping in between Dean and John. Details them bringing him food or water when he needs it and Dean taking him to the bathroom to relieve himself. Can't remember if there was any sex between Dean & John or only Sam/Dean & Sam/John.

I'm kind of sure the same author had a 'verse of about 5 or 6 fics that all started the same way: Dean goes to get Sam at Stanford only to find that Sam dropped out months before. I recall one of the fics has Sam working as a psychic in the back room of a brothel. I think he's also addicted to heroin or coccaine in that fic.

If anyone can find these fics and/or the author/s I'll be eternally grateful.