Kirk and Spock are on a strange planet with no weapons, no communicators, and no clue what the hell is happening. They have no way of knowing that Spock Prime's life depends on their choices.

You know of those stories where the transporter sends Kirk or Spock careening into another universe where everything is weird? Well, this isn't one of those. No, this is the story where the transporter makes everything weird in its own universe. Though it skipped the gender-change trope. No, this is a new one. Add on sex, political negotiations, angry admirals, and an unexpected marriage and things get quite complicated.

Sometimes the other Vulcans wonder how Spock managed to obtain such an exotic bondmate, and sometimes Spock wonders himself.