Hentai fetishes - Futanari and Tentacle art

Hentai is a Japanese word that used when referring to sexually explicit or pornographic manga, anime and PC games. The word hentai is commonly used to mean – sexual distorted.
Hentai anime features many fetishes like heterosexual interactions are known as yaoi, and yuri which focus on the female homosexual relationships. There are plenty more other different sub-niches - bakunyu, the depiction of women with big breasts, futanari, depictions of hermaphrodites, tentacle sex, the depiction of tentacled creatures and sometimes monsters. Let’s talk about last two in details.
Tentacle sex is a bizarre niche of animation and doujinshi in which women are attacked and penetrated by strange creatures with tentacles. Japanese shokushu goukan is a concept found in many horror hentai anime titles, where various tentacled monsters (usually fictional monsters) attack 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 ravaged by a pair of tentacles.

Tentacle erotica 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 famous Touch of Tentacle Orgasm live action tentacle series.
Other interesting 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 movies character that having both man and female sexual signs.
The term newhalf is usually reserved for characters drawn in Japanese hentai anime style. Western style is usually simply referred to as futanari dickgirls.