The tag "3D-POV" refers to a type of adult film that is shot in a first-person, point-of-view perspective. It is typically presented in a 3D format for an immersive experience. This means the viewer sees the action from the perspective of the actor, as if they were actually participating in the scene. These films often involve a lot of close-up and intimate shots to enhance the sense of realism and presence for the viewer.