He chuckled. She made a good enough point, even someone with her weak powers and inept skills would have some idea of the magical lays and of the political and physical vulnerabilities of the kingdoms.
"Fair enough."
And with those two words he motioned at her. A perfect, seamless ring of leather, a collar, appeared around her neck, a symbol of her submission, of her being owned. And in that second, Gorath came. He shot his load with such force and volume that he not only filled her every crack and crevice inside, but that the force caused the witch to shoot from his cock like a rocket, landing a few feet away, still under the fountain of his seed, drenching her until the gush finally stopped. His magically imbued cum slowly soaked into her skin & pussy, beginning her transformation from witch to enthralled succubus.
As she lay in the puddle of cum, her body was beginning to become wracked with orgasms as the changes began. First were her tits. They grew two cups, still staying as perfect and perky as ever. Every ounce of fat melted from her already lithe body, and from her heels grew spikes of black obsidian; permanent high heels. A thin spade tail grew from just above her ass, and her tongue elongated, but it was the last change that brought the greatest orgasm for her. From her forehead she grew a pair of horns, a perfect facsimile of the pair on her helmet.
"Arise succubus. Now you shall take your place in my conquests." Gorath told her.