There are several points that are prohibited in life and among them is the temptation of the restricted teacher-student porn videos. These video clips are a combination of power functions, young and innocent looking personalities and the excitement of the taboo. This is why they are so preferred amongst the fans of adult material.
It is the entire package, the characters' communication, the power battle in between the advisor and the pupil. It is the drama of the characters who are caught in the internet of their own desires and the threat of being captured.
These video clips are not for everybody