Hentai is popular because anime is vastly consumed in this society, people of different age and races have at least once saw an episode of two of any anime. This is for all weaboos out there who want to jerk off to their favorite anime girls-a lot of anime are lowkey giving sexual innuendos such as in echi or the softcore version of an hentai.
One famous animation porn is the notorious hentai, or the Japanese anime version of pornography. Animation porn is a vast genre, you probably think it has limited content but the truth is there are different kinds of animation and therefore you can expect to have a variety of such category. One would be lying if he says he has not seen at least one animation porn in his life.