My theory with "Counterpoint" is that Janeway was manipulating Kashyk the whole time, and she used some seduction to do it. Come on, who can't see that Kashyk had the hots for her as well? There was sexual tension between the both of them in that episode.
Yes there was, and yes she did use seduction. But she didn't pull it out of nothingness, it was obviously based on some real sexual attraction, as was his actions. That's why the episode was so great, they both were playing a game that they both kind of wanted to fall for.