Shon T'Hara wrote:
If I remember the novelization correctly, Saavik was getting lucky more than Kirk in II-IV -- she not only helped Spock through pon-far, she was banging David and, before that, Peter Preston..
Saavik didn't do it with Preston. He had a crush on her, but it never went anywhere - she didn't return it, although she did befriend him after Spock explained to her what a crush was.
Saavik and David were indeed having it off though.
And Spock looked to be at least 17 when he and Saavik were into it...