This is the 500 stroke challenge. You will be instructed on how many strokes I want you to do, at the end you will be set a task. Before you can move on to the next set of strokes, you must complete the task. The aim of the game is to not cum until I say you can. If you cum early, there will be a forfeit. Failure to reach the end, will resort in you starting over. The pace of the stroking will be altered, I'm not going to make this easy. Can you last 500 strokes?