Do you mean "one of the recipients insisted they stop after only a few strokes" or "the domme was forced to stop after only a few strokes"?

Or, "one of the recipients choose to stop after only a few strokes," or, "the pain was bad enough that one of the recipients felt she couldn't go on and it was forcing her to stop?"

Obviously, in the caning castings, no one really claims to be forced to do anything . . . the recipients can stop or proceed as they wish . . .

though it is true, when the domme is asked by a recipient to go easier on her, the domme says, often, "I can't do that," meaning, that won't work for this casting . . . but recipients know they can stop.