Your personal Tumblr journey starts here
pleeeaaassseeee if anyone knows a fic like this,, tELL ME
Prompt: one day, when Arthur is being particularly pratish about how Merlin is a servant and should learn to better behave like one, Merlin answers him mockingly with a "yes, master"
Merlin didn't intend to ever call him "master" again, except he notices how Arthur's face turns a dark shade of red and Arthur dismisses him for the rest of the day, barely making coherente sentences
From that day on, Merlin waits for the best situations in which he should call Arthur "master" again. Those are: in front of the knights, visiting nobles and his father, in the middle of feasts and banquets, just before Arthur enters a tournament, and, obviously, just before Merlin bends down to pick up clothes from the floor in Arthur's chambers
And then, one day, Arthur just snaps