On very rare occasions you will find two characters who exist solely to be shipped together. Mulder and Scully, David and Maddie, Castle and Beckett, Kirk and Spock. Possibly the poster men for the future, Kirk and Spock share a bond that is at the very least that of two inseperable friends, and at most (according to many fans) a couple that was simply meant to be. The 'ship was so key to Star Trek that you even get nods of the connection in the more recent iterations. Whether or not you actually ship the Captain and his Science officer, there is no denying their chemistry, in both the Pine/Quinto version and the Shatner/Nemoy version.
Let us know what you think in the comments and tell us about your favorite Trek moments.