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 canThe 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?