It did

Once his vision readjusted to the mage light and he could see again Mathias's jaw dropped. It worked! In his circle laid out on the floor completely immobile was a succubus, soon to be his succubus. She was the most beautiful girl he had ever seen. She looked to be about the age of a human girl of 21 marks, but Mathias knew she was probably centuries older, maybe even a millennia or more. She had hair as black as ink. Skin that was a dark grey, like that of a soot stick he used for sketching. Striking ruby red eyes and lips that stood out in stark contrast to her dark complection. Mathias couldn't guess her height while she was laying there, but she was definitely taller then himself. And builtexactly like he expected a sex demon to be. With breasts that were larger then any he'd seen on a human but fit perfectly with her bodies size, and puffy lighter grey nipples poking out of her soft, smooth mounds. It was chilly in the cave so the succubi's nipples were fully erect. Toned muscles in her arms biceps and forearms indicated to him that she must train with weapons or know a trade, but then he remembered that she's a fucking demon and probably used magic or whatever powers demons had to maintain her body. Her hands were soft and supple with long slender fingers, light grey palms and white fingernails manicured to flat tips about an inch long. As his gaze roamed over her he took a second to take in her middrift. Flat, tight muscles lay just beneath her skin, and with her arms and legs bound to the floor in a spread eagle X via the runes he drew, it really showed her off. Her muscular stomach, that curved beautifully inward at the waist, gave way to curvy hips that hinted at an immaculate ass, unfortunately she was laying on it. Mathias wanted to release her right then and there just to see it, but he managed to suppress his hormones and not free this lethal sex demon he had caught by the tail. Moving down her body he stopped at her pelvis. There was a strange silver rune tattooed, no not tattooed, painted? That's not it either, branded, it was branded into her skin right in the middle of her pelvic area, right where her chiseled stomach stopped and where her pubic hair would have began, if she had any. Her entire body, save for her head, was completely devoid of hair. He had never seen a woman's sex before so he didn't know what to expect and if hers was normal by humans standards. Everything else on her feminine, demonic frame seemed to be in order so he assumed that her sex was too. It seemed to follow the same color pattern as her breasts and nipples, growing lighter around her lips and opening. Mathias wondered what color the inside was. He felt himself start to stiffen and his heart beat so hard in his chest that it almost hurt. His head was swimming with the adrenaline and testosterone cocktail his body was producing in anticipation of sex. He shook his head and continued to examine his prize. Her legs, like the rest of her, were taught with corded muscles just below the surface. Perfect muscular cuts and curves spoke of powerful legs, capable of propelling this demon fast along the ground, that is, if she couldn't fly, or delivering the mother of all kicks if she so wanted to. The only thing notable about her feet was that the soles were the same light grey as her palms, nipples and sex, oh and the three inch claws on each toe. Unlike her fingernails these claws came to sharp, fatal points and where not the snow white color of her finger nails. But rather a dazzling onyx black, so shiny that the rays of his mage light reflected off of them.

Only about ten seconds had passed while Mathias was doing his visual inspection. The succubus waited patiently for him to finish, not like she could go anywhere, and besides this was a normal reaction to a being such as her. She would have been insulted to the point of rage if this young human hadn't stopped to drool over her supernatural looks. She had spend decades perfecting her appearance. Shaping and sculpting her body with exercise, magic and the life of her victims into the most enticing thing any human could ever hope to see. Demons are obnoxiously prideful and with good reason to be. For few other beings in all the realms, be them physical, mystical or otherwise, could measure up to that of a normal demon's beauty. Much less a demon who's sole purpose in this universe was to ensnare humans with the pleasures of the flesh.

Once Mathias finished staring he spoke. "It.. it worked." He was surprised that both the circle and grinmwoire worked as intended. He half expected the succubus to appear behind him or maybe not activate the entrapment runes. A smooth female voice answered him. "Apparently so young mage. Are you pleased with what you see? The demon asked, her voice sounding like sex incarnate. Soft and playful, with a tinge of lust on every word. Mathias had never heard a voice so soothing or arousing in his life. "Ye-yes", he stammered out, "I'm very pleased. What is your name madam demon?" Mathias didn't want to insult her by just simply calling her a demon. But didn't exactly know what her title might be. So he settled for madam for the time being. "tisk, tisk, tisk, you are obviously no fool my young mage, but you must think very low of my own intelligence if you'd assume I'd just willingly give you my name. But you may call me Nara. Now why dont you release me and we can have some fun." She said with a sexy lilt in her voice. "I'm sorry madam Nara but if I am to release you from your binds I must know your true name. And I am fully content to let you stay just like this untill you tell me." He crossed his arms and took a seat on a small bolder about ten feet away. Nara had been in a similar position a few times before and she wasn't worried. Every time the captor couldn't resist her beauty and ended up making a mistake. This time would be no different then the last. "Isn't there anything else you would like?" The succubus asked, "I can satisfy your deepest or darker desires. I can transform into the image of the woman you've always wanted but could never have, I can let you experience things no mortal could do. And all you have to do is let me out. I promise you won't regret it." Her voice had a sweet almost musical tone to it. And Mathias's mind began to wander and fantasize about what exactly he wanted from his captor. "You'll feel pleasure the likes of which no mortal woman could ever hope to compare. Just set me free and let me have my way with you." Her tongue slid out of her mouth slightly to moisten her ruby lips, Mathias saw it was pink like his, though much more snake like but not forked. Mathias was fighting an internal battle, he desperately wanted to break the circle and throw himself at the creature, to feel the pleasures she promised, to experience every sensation his body possibly could. His cock was twitching and his balls ached for release. His mind was being clouded by her words, her spell. His mind was floating in euphoria and he felt his body begin to move. Suddenly he snapped out of it and found himself just about to break the chalk line that imprisoned Nara the succubus. He took a careful step back and regained his composure. "A very generous offer madam Nara, but I'm afraid only your name will do." Nara tried a different tactic, she frowned and puffed out her lower lip in her best pouty face and spoke with a whimper, "But sir you must have some desires. A strong male specimen like yourself is no doubt well experienced in the prospects of love making but surely there must be something you have yet to try." This time Mathias was ready for her words and didn't give into the trance like state. "Madam Nara there is nothing that could please me more then your name." He said with a resolve that conveyed that there would be no compromise. Nara was stunned, she have never been rejected so often, she needed to think of something to bargain with, and fast. "Tell you what sir mage, since you've been so polite with me and because we seem to be at an impasse, I'll make you a deal. I'll promise you that I will not claim your soul for my goddess in exchange for you releasing me." Mathias thought this a good time to probe for information about his new friend. "What goddess does a demon such as yourself serve?" He asked. The demon smiled a beautiful, dangerous smile and began to explain, her words oozing with lust, "Venus," she drew the S out so she hissed like a serpent, "Goddess of lust, sex and beauty. She is the creator of the succubi and incubi and she has tasked us with collecting the souls of humans to forever fuel her power." Mathias had an idea. "Ok madam Nara, then I want you to swear on your goddess's name that no harm will come to me." Nara winced ever so slightly, this human was clever indeed. Demons where, by nature, evil. But they had rules, they could break promises whenever they desired, but an oath sworn before their patron god or goddess was binding, lest it sully that deities name and reputation in the world. A demons reputation would become worse if they broke promises regularly, it was a mystical phenomenon, the rules that governed this land would make it so that a demon with a lying tongue would produce an aura that would make other creatures less trustful of them. The same went for all beings but more so for the demon and the Faè creatures.

Nara didn't want to make this deal, she wasn't normally the deceitful type so her aura wasn't tainted. But this human was leaving her with very few options.