This recording increases your arousal when thinking about or in the presence of an extra cock in any sexual situation. You start out becoming more aroused just imagining it. This is good enough until you do it. You won't want to go back once you've experienced feeling this aroused. And so on it will go. Each new additional cock teaches you how aroused you can really be, so that that's how aroused you want to be. Imagine what you will do to reach peak arousal, and what you'll let your partner do.