I was always struck by the easy camaraderie between Kirk and Scotty seen in the earliest episodes. It suggests that they knew each other well and had built a lot of trust in each other’s abilities; perhaps they worked together on other ships.
OTOH, you could see how Kirk would have relied on Scotty as a senior holdover who was both competent and knew the ship’s little ways. Of course, the two might simply have clicked from the first handshake when Kirk assumed command.
Either way, those early episodes showcased a special non-com/first lieutenant relationship that was lost over time, when Scotty’s character veered dangerously close to comic relief.
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Engineering Division ready as always.
See also their reunion in TMP, the cute way Kirk at one point drops into Scotty's accent and then they share a smile. The Kirk/Scotty friendship definitely feels like a thing, I think gets a little overshadowed by Kirk's relationships with Spock and Bones, but it's definitely there.
