The porn video tag "young-ftm" refers to content that features a young, female-to-male (FTM) transgender individual. FTM stands for "female-to-male," which is a term used to describe individuals who were assigned female at birth but identify as male and may be undergoing hormone replacement therapy or other gender transition processes. In the context of pornography, these videos often showcase the physical and sexual exploration of young FTM individuals, providing viewers with an opportunity to gain insight into their unique experiences. It is essential to note that this tag is for adult audiences only, as it contains explicit content.