You can make a lot of arguments about James Tiberius Kirk. You can point out that he put on a few pounds over the years. You can contend that no rational Captain of a Starship would routinely beam down to an unknown planet with the initial exploring party, equipped only with a phaser and tricorder and a security guy in a red shirt who inevitably would be killed within seconds. You can argue that there is no way that Kirk could have defeated the Gorn, or could realistically have battled Spock to a draw in the thin, hothouse atmosphere of Vulcan. You can dispute whether, when all characteristics and traits are taken into account, James T. Kirk was a better Starship Captain than Jean-Luc Picard.
So, yes . . . you can make a lot of arguments about Captain Kirk — but I don’t think you can reasonably argue that Kirk was not attracted to women and instead harbored secret passions for his friend Mr. Spock. The only reason we didn’t see more obvious sexual activity between Kirk and his various female partners is that the original Star Trek was filmed in the 1960s, when TV shows were much less sexually explicit than they are now. After all, this was in the same time period when a young married couple, Rob and Laura Petrie, was depicted sleeping in separate twin beds on The Dick Van Dyke Show. In that time and place, Star Trek was pushing it with scenes where Kirk was shown sitting on a bed putting his boots on.
The best thing about Richard’s link, though, is that it is a good reminder of how there were many really crummy episodes of Star Trek. Some of the worst (or perhaps, most annoying) that I can think of right now are Charlie X, And The Children Shall Lead, the episode where Jason Bolt from Here Come The Brides was fighting himself from a parallel universe, the episode where the “Yangs” were fighting the “Comms,” and the episode where two guys who were literally half-white and half-black turned out to be bitter enemies because one was black on the right side and the other was black on the left. I’ll take an episode where Kirk is getting some action — even if implicit — over the episodes that hit you over the head with an overt political message any day.