I'm looking for a fic that I am pretty sure is John/Dean. I remember that John treated Dean like his wife-he might even be call Dean his "little wife" and Sam called Dean "mom." Dean and Sam are both underage, and the age difference between Dean and Sam might be increased-I think Sam is watching cartoons at one point. I'm not sure if it was an A/B/O story, but I think it involved breast-feeding both John and Sam and possibly Dean crossdressing. I don't think they were hunters. I think they actually had a home and John was working a regular job. I went through my AO3 bookmarks, but I didn't find it. It could have been an LJ fic.
Hope someone here will remember it, or have suggestions for similar stories. Thanks in advance!
Found: Sabor a Mi?
http://spnkink-meme.livejournal.com/75685.html?thread=26816933t26816933 Includes this line: From the other side of the room, young Sam whined, "I'm trying to watch cartoons. You're fucking him too loud."