The succubus is a much misused and abused monster. At best, most of the time, they’re just placeholder sexy demons a million miles from the seductresses and manipulators of men that they could be or should be. The same goes in reverse for the Incubus.
These are creatures that can know and fulfil your innermost, most secret, shameful desires and use them to twist you up and make you do the devil’s bidding. These creatures should be more like cenobites than busty playboy models.
They should be the embodiment of transgressive desires, of the kinds of things people might be ashamed of, the kind of things they might have trouble getting.
There’s a useful list of paraphilias HERE on wikipedia, but let’s take a closer look at a handful of them, Needless to say, this is going to be a bit adult.