A great question, char.
Personally, I agree that "The Talk" tends to be the original reveal to one's spouse about their dressing. I suppose that such a "talk" may occur several times as the topic is shared with children, parents, friends, co-workers, others?
I would believe it to be rather rare that everything can be covered and resolved after the initial "talk" so there seemingly - invariably? - tends to be more talk. Maybe after that it could be referred to as another piece of "the conversation" for clarification, for request of new boundaries from either partner, other variables discussed. Perhaps that "conversation" continues for years until both parties have found their personal levels of acceptance on the topic as well as accepted their partner's level of acceptance.
Interesting to note is it feels as if the conversation could take much of a lifetime for some. For my wife and I things have been rather settled for quite many a year yet, as we see retirement on the not-so-distant horizon, there may be a re-opening of the conversation to reset boundaries and preferences. That part is likely an entirely different post.