The word "years" in the context of a porn video tag generally refers to the age difference between the partners involved in the scene. This could mean that there is an older man with a younger woman, or vice versa. In some cases, it might refer to a specific age gap, such as a 10-year age difference. The exact nature of this age dynamic may vary depending on the video, but overall, "years" signifies a power dynamic or generational difference in the porn scene