The porn video tag "giantess-unaware" refers to a specific type of fetish content within the realm of adult videos. In this scenario, the theme centers around a woman (or sometimes a man) who grows to an enormous size, typically much larger than buildings or other landmarks, often without being aware of it.
The element of "unaware" suggests that the giantess character does not realize her true size and continues to live her life as if she were still at her normal height. This can lead to humorous, erotic, or even dangerous situations as she interacts with her environment and people around her who remain at their regular human sizes.
In these videos, the visual aspect of the giantess's size compared to the surroundings is often a central focus, showcasing her enormous proportions and how they impact her experiences. The fetish aspect usually revolves around the awe or fear experienced by the other characters who encounter the giantess, as well as the sexual attraction that may arise due to her immense size