I'm looking for a certain story that I can't seem to recall. In it, part of Justin's hand turns discolored (I think it was blue-ish), and Brian gets a little worried. Justin doesn't seem to worry about...neurologist anyway to appease Brian. I think this was part of one of the longer stories in the fandom, but I dredge up the name of it, or what the rest of the story was about! ETA: Found in comments

1. Gus is older and living in Britin with our boys. Brian tells Justin that he's not Gus's real father, so Justin begins spending his nights in another part of the house. They eventually make up in the...encounter with his father. I believe they are already engaged ... maybe? Or maybe it's just wishful thinking on my part, LOL. Thank you. :-)  Edit: Both fics found! Links provided in comments.