>>26791
They can be. Drag someone into a lewd, lotus-eater machine, that errs on the side of being too lewd, or devolves into sheer cum dragging. As horror. The longer you dream, the more your body is sapped of it's life force, until you're drained so much you never awake, a dried out husk being all that remains. Or you can go the route where succubi, despite being a little "Plain", make up for it by being extremely evil, highly OP bitches who you can't do anything against. Succubus Prison's a good example of this. The succubi are giving off raw allure, that people go insane seeing them naked, or get charmed with one eye glowing glance into their gaze. Before they're done with you, you're going to be mindbroken by pleasure so much, you'll be happy they're murdering you. It could be their breasts that charmed you to your death, their ass, a succubi's main weapon between her legs...or really anything. Every part of them can kill, and even seemingly the weakest, safest succ will murder you for fun or food.
I suppose you can play with weaker succubi who are less overwhelming in power even at their weakest, but if you give them one good orgasm, you shift from being dominant, in control, or at worst just tempted into something that should be mostly harmless, to mere prey.
>>26793
Seems like a neat idea, not my cup of tea, but it's creative. Maybe they rape a virgin, and keep them a "virgin", and knock them up for fun stuff, or the rape taints them to suddenly turn into a raging whore who needs dick.. Throw in some marriage on the way for the girl, or a relationship that's slow and steady, then ruin it all, seemingly all on her own.