Succubus erotic fiction is different because it involves a supernatural element. Unlike regular erotic fiction which may focus on normal human relationships, this type has a succubus which is a non - human, often demonic entity. So it has a more otherworldly feel to it.
Succubus erotic fiction stands out from other erotic fiction in multiple ways. Firstly, the nature of the succubus as a mythical and often malevolent being adds an element of danger and the unknown. This is not typically found in other erotic stories. Secondly, the cultural and historical background associated with succubi, which often ties in with religious and superstitious beliefs, gives it a different context. The sexual encounters in succubus erotic fiction are often influenced by the succubus's need to feed on the life force or energy of the human, which is a very different motivation compared to the relationships depicted in other erotic fictions.