JOI (Jerk Off Instructions) is one of the greatest porn genres out there. We're going to go ahead and make a bold claim that JOI is the single most immersive way of watching online porn. Instead of being the onlooker, you're the one that "interacts" with the girl, making JOI both interactive and immersive.
Due to their very nature, JOI videos oftentimes explore taboo stuff. For example, some of the most popular JOI porn videos focus on sister seduction, edging, spanking, mommy seduction, daddy/little girl roleplay, and so forth. This is the kinda stuff you do see in mainstream porn, but is never ever directed at YOU.
With these chicks, you can indulge in a crazy fantasy, immerse yourself in your innermost desires. The chicks encourage you to jerk your cock for them, but they all do it in a distinctly different manner.