When does she whisper such a provocative question, before the orgy or during it, does it matter? It isn’t a question a man could ask, they are either too impotent and would take offence, or too hasty and wish to gratify themselves. Sex is only the beginning, it’s easy and she has not exhausted herself. Any sense of lack could only come from an answer to a different question. A suggestion of lack is only possible if it’s internal to her and that’s why she asked, but why’d he believe her if he doesn’t know her. Using her in terms of lack anyways stems from an obscene and appropriative principle, taking advantage of this nothingness to guarantee his own wishes. Such a man would be lead into assured disappointment or hell because he’s guessed too hard.
This after obviously doesn’t concern him and it’s only a problem if he takes her question as his own and circles around it. He may never meet her on this secret rendezvous, but it’s because he’d said everything that would happen after the orgy. And so, she was right that everything wasn’t liberated during the orgy, he’s still going without having anything to do after.