Same.
I rewatched the first few movies just recently, and some of the stuff makes it hard for me to understand how anyone could NOT be a Kirk/Spock shipper.
On that note, I am currently drinking tea out of a mug with Kirk and Spock on it... ^_^
And of course there is this:
Feel free to ignore me but I always wondered why this points to KS?
It it because its OK for Spock to give Kirk a backrub but not the yeoman? Is a man giving another man a backrub some sort of gay signal? I really honestly don't understand. To me this scene is perfectly innocent.
I apologise if I appear dense or naive.
As for the backrub, yeah. Kirk is *really* into it when he thinks Spock is doing it, and puts a stop to it immediately when he realizes it's not Spock working on him. He looks disappointed. I really have no idea what that's supposed to be about if it's not gay. There are lots of little moments like that with K/S, open to interpretation, but sometimes the gay option is the one that makes the most sense, rather than bending over backwards to explain why what just happened wasn't really gay.
I think that the scene is playful. The way I see it, it was way more inappropriate for Kirk (in character, as the captain) to receive a backrub by the yeoman than from one of his male friends.
That said,
here's my two cents. (warning: this is complex and a delicate topic, and I'm sure there are people who can explain this stuff way more eloquently than me)
I always try to judge tos with the eyes of the 60s-70s which isn't always so simple, to say the least.....
Context matters and what a lot of people seem to forget, sometimes, is that
at the time it was way more likely for a network to censor a scene between a man and a woman than one between
two men, even though both were similar and completely innocent for the most part. It's hard to understand it
nowadays because nowadays "queer baiting" in fiction
is a thing that the writers do but at the time when star trek was created,
paradoxically, they allowed two men to be close because they didn't consider
that indicative of a sexual/romantic interest by either character (and therefore they didn't think people would interpret it that way). You have to think about it with the logic of a writer from the 60s and how
limited that time was. Gay people were so ignored - beyond the stereotypes and homophobic parodies made about gay men - that they didn't even consider it something to take into consideration when they needed to "censor" a scene. Since for them the only sexual relationship/romance could be between men and women, then it's the interactions between characters of different sex that were subjected to censorship and were automatically perceived as being "too much" or inappropriate (even when they weren't) while the same interactions between a man and another man were completely innocent for them (i'm talking about
platonic interactions here )
Of course, I'm not saying that female characters
weren't purposely used as sexual objects, at times. They did. But that's not the point I'm trying to make here.
Though, it should be taken into consideration that misogyny and sexism were so rampant and because of that too, possibly, only male characters were - perhaps - allowed to have some depth in their relationships with other males. A depth that perhaps a male/female friendship couldn't have because those were automatically perceived as being sexual/romantic in nature.
Male homosocial relationships in media weren't considered "gay", it was in fact the norm.
Furthermore, it had always been considered normal for men that work in certain environments to create close relationships with other men without that having to indicate romantic attraction too (e.g., people in the army itself and sport teams. Just look at how some football players interact... they give to any popular slash ship a run for their money, honestly)
Even the Greek 'ideal' that people often bring up as the basis for the idea that Kirk and Spock are the single most important people in these characters' life is, basically, that
women ain't s**t.
All in all, it will never be plausible to me that they would intentionally depict K/S or any other character as gay in the 60s-70s and in
that context. (I might argue, though, that later it could have been perceived as queer baiting, especially when the writers
knew about the existence of the slash subculture)
K/S was more or less a result of the cultural mindset and biases of the time. As someone said in an essay I read about Spock, he really was "
The Othered Nerdy Jewish Friend of Hero" and basically never allowed to get a life outside of that friendship for a number of reasons. You should read some letters between Roddenberry and a friend in which it's basically said that the star of the show
had to be Shatner-Kirk but Spock was becoming too popular so they made Kirk and Spock best friends and inseparable to avoid rivalry between them and so that people would love Kirk
because of Spock (here's the letters:
http://www.lettersofnote.com/2012/06/getting-star-trek-on-air-was-impossible.html - in the specific read where it says
"I would dearly love to discuss with you a problem about the show and the format. It concerns Captain James Kirk and of course the actor who plays that role")
**Also, but not least important, didn't Roddenberry himself admit being a homophobe?
I'm surprised how many people seem to always dismiss this detail
"I would, sometimes, say something anti-homosexual off the top of my head because it was thought, in those days, to be funny. I never really deeply believed those comments, but I gave the impression of being thoughtless in these areas. I have, over many years, changed my attitude about gay men and women"
- Roddenberry spoke of overcoming his own homophobia, interview with The Humanist, 1991
to be fair, he wanted to introduce a gay character in the franchise but that was years and years after the original series was written (more around the time they did TNG I think). But the point is, with all due respect to people that consider him a saint or something like that, I have to express my doubts about whatever it was possible for this same guy
to intentionally write gay subtext/characters/relationships
in the 60s to 80s where,
from his own admission, he hadn't been so open minded and tolerant and respectful about gay people.
Also, to be honest, even some of the things he retroactively said about the K/S relationship (read: when he decided to be more open minded with the slash fans) hide, in my opinion, a tad of ignorance about bisexuality (and homosexuality) even when he was trying to sound tolerant. (e.g, when he basically said it could have been "the particular style of the 23rd century" to have sex with your best friend. I mean, dude.. imma let you finish but it is not 'trend' or fashion ... )
I have read that an early version of Plato's Stepchildren, intended as a series finale, would have Kirk ending up with Uhura and Spock with Chapel. If that had happened, I think the "you can make me soup" bit would be seen as building towards that. So my take on that is that there may have been intention for a Spock/Chapel pairing to happen down the road and it just didn't happen. If the show had gone another year, maybe something would have come of it. I'd be surprised if at least some of the writers weren't thinking that Spock and Chapel were endgame and would get together at the end.
Nichelle Nichols (and George Take) would disagree

she said that Roddenberry had wanted to explore a Spock/Uhura relationship if the show went past the third season. She also commented, though, that a relationship like the reboot one b/w S/U would have been impossible in the 60s because that kind of thing wasn't allowed in the show (because of racial and gender issues for sure)
here's one of sources:
http://www.youtube.com/watch?v=lQrHIQhvWNo
there is a transcript of what she said in the description of the video, if you don't want to watch it
here's the relevant excerpt from it:
"I decided then from the character that I read [Spock] that I wanted to be very much like that character but in a feminine way. And Gene said, and I was sharing this with George the other day, when I told him that I thought of Spock as my mentor. Because if you remember Uhura was the only one he was able to teach the Vulcan lyre too and he sang and spooffed onSpock. Now, you could have never had a love scene in 63 between Uhura and Spock but there were several hints and Gene was one in the kind of beginning to follow that and he wanted to do episodes if we had gone past the third year"
Also, for the sake of adding more trivia here
it's well known that the Kirk/Uhura kiss from 'Plato's Stepchildren' was supposed to be between Spock and Uhura originally but Shatner made them change it:
http://www.themarysue.com/uhura-spock-kirk-kiss/"[She] told The Vancouver Sun she was rehearsing her lip-lock with Leonard Nimoy (a.k.a. the Vulcan, Mr. Spock) when William Shatner (a.k.a. interstellar stud, Captain Kirk) saw the smooch. “Bill Shatner saw what was going on and he said, ‘Woah, woah, woah. If anybody is gonna get to kiss Lieutenant Uhura it’s gonna be me.’ And he had the whole thing changed so the first interracial kiss was with Lieutenant Uhura and Captain Kirk.”
As for
Spock/Chapel, there is a rumor that the pair also was one of the ideas that tptb had for the character of Spock (perhaps a sort of "plan B" after they saw they weren't allowed to get the interracial pair b/w Spock/Uhura?) but they could never develop that for a number of reasons.
I think that, overall, it wasn't possible at the time to put either Kirk or Spock in a stable romantic relationship with any girl because of what is written below in the bold part:
"Christine Chapel proved to be highly unpopular among some fans of Star Trek's original series. "It was because of her love for Spock and his occasional moments of gentleness toward her that Christine Chapel was largely disliked among the Trekkies who adored Spock," explained David Gerrold. "Female fans saw her as a threat to their own fantasies and male fans saw her as a threat to Spock's Vulcan stoicism." However, the fans who met Majel Barrett were often surprised by how beautiful she was. Gerrold concluded, "They just couldn't see it in her as Chapel because of the relationship between her and Spock." (The World of Star Trek, 3rd ed., p. 28)
______ from
http://en.memory-alpha.org/wiki/Christine_Chapel
and I think that what is written in the bold part is, sort of, the summary of what I'm trying to say here about the context of the time and why the "bromance" was everything you could get, in terms of important relationships and depth, for some male characters.
again, just my two cents

(sorry for going a bit OT perhaps.)