This porn video tag consists of three terms that have specific meanings in the context of adult content:
1. "2": In this case, it refers to the number of participants involved in the scene. It could also be "3", "4", or any other number, depending on how many people are participating.
2. "Shemales": This term is used to describe individuals with male bodies and female secondary sex characteristics, typically possessing both male and female genitalia. Some may use the term transgender, transsexual, or intersex, but shemale is specific to adult content.
3. "Fuck": This term refers to sexual intercourse, most often penetrative in nature. In the context of this porn video tag, it suggests that the shemales in the scene are engaging in sexual activities with each other or others involved.
So, the tag "2-shemales-fuck" means a porn video featuring two individuals with male bodies and female secondary sex characteristics who are engaged in penetrative sex.