Hentai fetishes - Futanari and Tentacle art

Hentai is a Japanese word that used when referring to sexually explicit or pornographic doujin, anime and computer games. The word hentai is mostly used to mean – sexual wicked.
Hentai anime features many niches like heterosexual interactions are known as yaoi, and yuri which focus on the female homosexual interactions. There are much more other different sub-genres - bakunyu, the depiction of women with big bosoms, futanari, depictions of hermaphrodites, tentacle porn, the depiction of tentacled creatures and sometimes monsters. Let’s talk about last two in details.
Tentacle erotica is a bizarre genre of animation and doujinshi in which women are attacked and penetrated by weird creatures with tentacles. Japanese shokushu goukan is a concept found in many horror hentai anime titles, where various tentacled monsters (usually fictional creatures) catch or otherwise penetrate women, dickgirl and, less commonly, male. This niche is quite popular in Japanese erotica.

Tentacle porn has roots in classical asian art. In painting ‘The Dream of the Fisherman’s Wife’, a nude woman is graphically attacked by a pair of octopuses.

Tentacle sex has a strong influence at the hentai world. Lot of hentai anime and manga have been turned into live action tentacle movies. Many famous AV idols like Maria Ozawa, Haruka Sanada, Sasa Handa, Yuka Osawa acts in well known Touch of Tentacle Orgasm live action tentacle series.
Other famous Japanese genre is futanari. This genre depicts hermaphrodite characters. Other common words used to describe futanari characters are dickgirls or hentai shemales (but terms dickgirl and shemale is wrong). Futanari, along with term newhalf, are more common terms.
Originally futanari referred to any hentai anime and videos character that having both man and woman sexual organs.
The term futanari is usually used for characters painted in Japanese hentai anime style. Western art is usually simply referred to as futanari dickgirls.