Bondanime

Tentacle rape is a concept found in some horror hentai titles, where various tentacled creatures (usually fictional monsters) rape or otherwise penetrate women (or, less commonly, men). Much of the genre also consists of humiliation and bondage fetishes, since the victim typically is restrained by the appendages.

Tentacled creatures appeared in Japanese erotica long before animated pornography; among the most famous of the early instances (and perhaps the first) is a Hokusai woodcut called The Dream of the Fisherman's Wife, depicting a woman sexually entwined with a pair of octopuses. This woodcut arose in the Edo period in Japan when Shinto was making a resurgence; the resulting animism and a more playful attitude to sexuality combined powerfully in Hokusai's piece. It is a celebrated example of shunga and has been reworked by a number of artists. Australian artist David Laity reworked the woodcut into a painting of the same name, and Masami Teraoka brought the image up to date with his 2001 work "Sarah and Octopus/Seventh Heaven", part of his Waves and Plagues collection.

A paper by Danielle Talerico showed that although western audiences have often interpreted Hokusai's famous print as rape, Japanese Edo period audiences would have associated the print with the legend of the abalone diver Tamatori. In the story, Tamatori steals a jewel from the Sea-Dragon King, but during her egress, the Sea-Dragon King, accompanied by his sea life minions (including octopuses), pursues her. Furthermore, within the writing on the print itself, the diver and two octopuses express mutual enjoyment.