Giantess porn is pornography featuring very large women, or giantesses. It reflects a (typically) male fantasy or fetish that is referred to as macrophilia, which means "lover of the large." However, it is not fat or even tall people represented in giantess porn - it's giants whose size discrepancy is far greater than that seen between actual humans. Although giantess porn can include non-sexual fantasies reminiscent of the old movie "Attack of the 50 Foot Woman," such as huge women crushing people, cars and buildings under their huge feet., it also includes highly sexualized imagery of giant women masturbating, inserting tiny men or engaging in other sex acts.
In giantess porn, actresses are made to look larger than life through camera tricks and the use of small models. It is also a common theme in animated or hentai porn.