Just how quickly can you finish? The longer it takes for you to cum the more you're going to spend. Every time I say stop you can expect to pay tribute. It'll start small but keep ramping up, each tribute becoming more and more money. The quicker you are, the less tributes there will be. The longer you take, the more expensive it gets. Not to mention that if you don't finish before I say so at the end there will be another large tribute due if you want to cum. Lets see if you're quick enough.