Learn How to Write a Goddamn Encyclopedia Article

Containing both heterosexual and lesbian love-making (sometimes in the same scene), with an emphasis on story, characters and relationships unheard-of in western pornography, and making good use of several time-honored traditions of romantic fantasy, perhaps most notably genuine affection and cuteness, Ai Shimai is a series well suited to hentai fans who are sick of cruel fates, unhappy endings, loveless sex and, of course, giant demon beasts with penis tentacles.

The episode ending sequences depict Rumi and Tomoko hugging or holding hands, wrapped up in ribbons, together. Coupled with the rather emotional closing theme, this strong, moving imagery has been known to make at least one person cry.
-http://en.wikipedia.org/wiki/Immoral_Sisters

Wikipedia includes everything. Yes. This is true. But it includes everything written in a non-point-of-view manner using only sourced facts. It's not your little editorial playground to hype your favorite japanese rape simulation, or what have you. That excerpt is not even the worst of it.