smartass_captain

From:

Spock does not hear any of Kirk's—Jim's—attempted explanations on the stairs. He is too busy replaying the image of him striking Samuel Kirk for what he had said about Spock. For Spock's benefit.

At some point in the kiss, Spock ends up tangling their fingers obscenely there against the wall; it is fortunate that Spock is the only Vulcan currently on the campus. He is not thinking about that, however. He is far too busy with the moment, with tasting Jim's mouth, with pressing their bodies together tightly.

Only when he draws back for a breath and Jim speaks again does Spock have the grace to fluster somewhat, clearing his throat and reluctantly taking a half-step back, though the hand that had found its place at Jim's waist remains there.

"I did not indicate whether I was using the Terran or Vulcan definition," Spock explains, "and they are very different."