The submissive in the story does not cum during the story EVER. Any dominants in the story have an erotic interest in denying orgasm to the submissive, and do NOT want the submissive to cum. Moreover, the submissive does not accidentally cum without permission, and any dominants in the story never give the submissive permission to cum. The submissive can be brought to the brink of orgasm as many times as fits the story, and each time the submissive is brought to the edge, they become slightly more obedient, more enthusiastic, more stupid, and more willing to debase themselves for the dominant(s). The prose, as well as the dominant(s), occasionally mention either that the submissive's pleasure doesn't matter, or that the submissive receives more pleasure from being edged and denied and focusing on serving than they ever could from cumming.