This was, ahem, before I had discovered Livejournal and fandom (excepting Harry Potter) and the attendant depravity. Rule 34, etc. It was a happy, innocent time, before I even realized that people, for instance, shipped Holmes/Watson (BTW, that sound you hear is my childhood dying)...
K/S is the traditional pairing abbreviation, but since the 2009 Star Trek: Reboot, the kids have got at it. Various portmanteau names abound. My favorite is SPORK.
Anyway, I watched "Devil in the Dark" last night. I'd seen the episode multiple times before, but never with my naughty!bad!wrong slasher eyes:
In one scene, Kirk is discussing going after the Horta, a monster that has already killed fifty men. He wants Spock to stay behind and work on another task - repairing a critical piece of machinery:
KIRK: Mr. Spock. I want you to assist Scotty in maintaining that makeshift circulating pump.
SPOCK: *sounding hurt* I... beg your pardon, sir?
KIRK: You heard me. It's vital that we keep that reactor in operation. Your scientific knowledge --
SPOCK: -- is not needed there, sir. Mister Scott has far more knowledge of nuclear reactors than I do. *pleading* You're aware of that.
KIRK: Mister Spock, you are second in command. This will be a dangerous hunt. Either one of us by himself is expendable. Both of us are not.
SPOCK: Captain, there are approximately one hundred of us engaged in this search, against one creature. The odds against you and I both being killed are 2,228.7 to 1.
KIRK: 2,228.7 to 1? Those are pretty good odds, Mister Spock.
SPOCK: And they are of course accurate, Captain.
KIRK: Of course. Well, I hate to use the word, but logically, with those kind of odds, you might as well stay. But please stay out of trouble, Mister Spock.
SPOCK: That is always my intention, Captain.
Then, as they are stalking the creature through a cavern:
SPOCK: Captain. Fresh readings within the hour in each of these tunnels.
KIRK: The chart says both of these tunnels converge a few thousand yards further. You take the left. I'll take the right.
SPOCK: Should we separate?
KIRK: Two tunnels, two of us. We separate.
Again, Spock is so very reluctant to be separated from his captain!
Suddenly, part of Kirk's tunnel caves in:
SPOCK: Captain? Are you all right? Jim? Jim!
KIRK: Yes, Mister Spock, I'm all right. We seem to have had a cave-in.
SPOCK: I could phaser you out.
KIRK [OC]: No. No, no, you'd better not. Any disturbance might bring down the rest of the wall. Besides, it isn't necessary. The chart said the tunnels meet further on.
SPOCK: Very well, but I find it extremely disquieting that your roof chose that particular moment to collapse. Please proceed with extreme caution. I shall quicken my pace.
KIRK: Very well, Mister Spock. I'll meet you at the other end.
(Just then a part of the wall vanishes, and their strange adversary emerges. The pair have a stand off, with the creature approaching when Kirk lowers his phaser, and backing off when he raises it. The communicator beeps.)
KIRK: Kirk here.
SPOCK: Captain, I just read some fresh signs. The creature is in this area. I'll take a lifeform reading.
KIRK: It's not necessary, Mister Spock. I know exactly where the creature is.
SPOCK: Where, Captain?
KIRK: Ten feet away from me.
SPOCK: Kill it, Captain, quickly!
KIRK: It's not making any threatening moves, Spock.
SPOCK: You don't dare take the chance, Captain! Kill it!
KIRK: I thought you were the one who wanted it kept alive, captured if possible.
SPOCK: Jim, your life is in danger. You can't take the risk. I remind you it's a proven killer. I'm on my way. Spock out.
Pooooooor Spock, so worried about his Captain. D'awww, they're so cuuuuuuuuute!