Pathetic... weak... submissive... horny... looks like you're the perfect candidate to be my next victim!
One night, you wake up- your vision is blurry and lit with an otherworldly pink light, and out from the shadows comes... me. I crawl over to you slowly, taking my time to relish your complete shock and horror as your conscious mind stirs enough to make two observations; first: the figure coming closer to you is an impossibly sexy woman and second: you can't move a single muscle. I reach my hand up and slap you until you awaken enough to truly begin to panic. My sweet, sultry voice commands your arousal as much as it does your fear as I explain to your slow, stupid human brain exactly what's going on. I am a succubus and I've been looking all over for someone like you, who's so much of a desperate loser that you'd actually get turned on by me draining you, using you up for my sustenance until you're nothing but an empty husk... that's right. I feed off of "men" like you, I can taste how much your complete helplessness turns you on. It means you're going to keep getting hard for me until I've had my fill of you. I don't even have to fuck you to get what I want. All I need is my irresistible body and one hand to make you give in to me. You're just that easy, even if I ruin your orgasm so that I milk your cock while giving you none of the pleasure.
And I'm going to keep coming back for more, over and over, until I've had my fill.