Dryvus hugs the passed-out succubus closer, wrapping his arms around her back and jackhammering into her ass, cumming within minutes, filling up the insensate succubus' ass with his hot cum. Then, he pulls her off him slowly, careful to be gentle with the fucked-raw demon.
He stands up and stretches, the bones in his back popping as he does so. He feels powerful, as if he could run a marathon and back without breaking a sweat. He loved it.
"Mortal." It was Invunche's voice, whispering through his head. "What?" Dryvus mentally replies to his question. "If you so wish, I can stop the corruption, but it would continue to change your body. But in exchange..." Invunche gives one of his creepy breaking-bone chuckles. "In exchange for what?" Dryvus asks. "I decide just when to stop the corruption. I think around half should do. I would say you're about... 25% corrupted. I will stop it when it reaches a stage where you're more inclined to rape." Dryvus can almost hear the satisfaction in Invunche's voice. "Fine. I agree to your terms." He replies. "Good, good. Now this is going to be a lot of fun. Oh, and look at your shoulder if you haven't already." Invunche gives another of his creepy laughs, and servers the mental connection. Dryvus looks at his shoulder, noticing the mark for the first time. "Well damn. That's a little creepy..." He murmurs aloud. Then, he sits next to the succubus and waits for her to wake up.