The exercise room within the gymnasium was usually quite empty at this time of the day, most of the students having either gone off to meet with their friends or back to the dorms in order to work on homework or projects. The emptiness of the large room, filled with just treadmills, bikes, mats, free weights, and all manners of exercise machines and fitness equipment, made it an excellent place to lurk in for monsters and students alike. On this night, however, there were no students using the exercise room, the last few having just recently left after working themselves into exhaustion for their club activities. There was, however, a monster in the room now, using the darkness of the railways above to rest, well out of the gaze of any fluorescent lights. Fornicarus had been in the room for a long while, watching as a great deal of girls had come and gone throughout the day, yet unwilling to ambush any of them. The demon lord had only wanted to rest and recuperate.

Indeed, having spent much of the day doing nothing but sleeping and lounging around, the Marquis felt well enough to resume his hunting activities. The swimming pool and the rooms surrounding that part of the gym was his usual hunting grounds. But this time, the demon lord felt it wise to alternate between locations, so that his victims did not grow to become accustomed to him. Even now, Fornicarus watched the slowly-darkening sky through the windows as he waited for a potential prey to show up. If none showed up before the darkness fell, then the demon would simply have to move on to another area.

On her way to the gym with a small, black sports bag, the busty red head found herself calm even at such an hour. It was growing darker and darker, which meant she couldn't go to the tracks although her fear of the monsters on the island decreased drastically as none did attack her since the new semester started. However, with any homework done and no clubs except the book club she would have to attend to another day, Ryu was free to do whatever she desired for the time being. The whole day spent with sitting in a chair, the only limb which actually moved her right arm as she wrote into her notebook, it seemed like a good idea to return to her workout routine she had to give up on once the first projects needed to be taken care of.

Once in the changing room, she removed her already tight uniform to switch into the familiar dark blue shorts and white t-shirt which didn't do much better in the task of hiding her appealing curves. Worst of all, the shirt made her luscious breasts stand out even more than the standard uniform, but Ryu wasn't hindered by this that day. Her things were stored in a locker, then she decided it was about time to start and headed for the exercise room.

Usually she'd walk by and glance in before she would consider entering if someone else was around, but to her relief nobody was present. With a smile she approached the treadmills, her hips swaying gently without the need to hide her attractive backside. "Oh how much I missed running on these." Ryu started off with stretching, pulling her smooth legs towards her firm bum and holding each there for a few seconds, one after another. The anticipation wouldn't let her do anything else but step on the treadmill, then let the machine come to life as she decided on a jog to warm up. With the first few steps she could feel her orbs bounce the slightest, but she put that thought aside as nobody would disturb or see her.

Suddenly, the Marquis heard someone speaking and peered down to see that a student had finally entered his new 'hunting ground'. And what a specimen she was! The demon lord watched as the girl started up her treadmill and began jogging on it. Quite naturally, the first thing the monster noticed was how the impressive chest that belonged to the student bounced with each step. "Oooh, we got quite a pair, don't we?" Fornicarus grinned down at the girl as she unknowingly flaunted all she had to offer before the demon lord. "Ah, well, I've rested up enough, I think. Time to enjoy a little reward for all my patience!" The demon began losing his form, becoming liquid as he moved into action. Slowly, as the student went on with her exercise, the monster quietly slid down the wall as little more than beads of water, each one far too small to be capable of being noticed by even the most observant of females.

Just as slowly, the small puddle of water grew larger and larger as the Marquis gathered on the floor, quietly sliding over the floor toward the student, using the machines that surrounded her to cover his tracks as he moved among them. Before long, the demon lord had gathered under the treadmill the student was using, taking care to not touch the machine or leave any evidence of his presence. It wouldn't have been funny if he had accidentally electrocuted the girl. Well... It'd probably be funny. But, It'd have been counterproductive as well, after all he had put so much time and effort in finding a new victim to savor. "Let's see... What shall we do now? Ah, there's been something I've been curious to try..." The Marquis thought to himself as the puddle of demonic water began to dissipate into air, becoming little more than a light mist that wafted up on the breeze caused by the treadmill. Soon, the mist began to swirl around the student's head, unknowingly inhaled by her as she jogged. "Let's see what happens when you breath in lust itself..." The Marquis watched from all around her as he waited for the effects of the aphrodisiac mist to begin working on the student. No doubt it would work much like his usual spells. The demon watched with interest as he ensured the student kept on breathing him in, allowing the power of lust to do its diabolical work from within the girl's own body, helped along by her own respiratory system. No doubt she would be feeling the effects by now, at first a soft burning from within her loins, then slowly spreading all over from there, inflaming every part of her body with a burning desire for pleasure,

The demon's presence remained unnoticed, the young woman focused on the jog her body was aching for. Everything was fine until she started to feel a bit odd, warm perhaps. Ryu shrugged it off and kept on moving at the same pace. Increased efforts to maintain a proper breathing technique however, which must have been the obvious origin of the feeling summoned while jogging, made it worse. Taking deeper breaths in the process, it wasn't long and her loins were spreading a soft burning which built up in them through her entire body, like a wild fire it burned through her veins. When it reached her breasts she couldn't help but gasp, the friction against them provided by the shirt sent a spark of pleasure through the luscious mounds. A pitiful expression on her face, the girl became slower, her cheeks abruptly flushed with a subtle red tone as she realized what was happening and struggled to lower the speed she'd have to run at.

"M-maybe it's just the shorts, rubbing against me somewhere, no big deal .. Hah .. I bet they gave me a smaller size on purpose .. again." Her voice a little jittery, she found it hard to keep at least walking. She could already feel a familiar tingling within her core, there was no use. Ryu stopped completely after a few more steps, never before built the urge to find relief in pleasure that fast. It wasn't only that, her body felt like it was going to burst forth with lust as she held onto the machine. Basically she clung to it, bending forward which, thanks to gravity, made the huge chest of hers even more appealing as the pair pressed against the fabric. Ryu thought it might be better to wait until the effect, of whatever might have caused her misery, wore off. With her body's building desire for pleasure, the student had a hard time, resulting in even deeper breaths as she absorbed the demonic aphrodisiac in higher amounts.

The Marquis was especially pleased with himself. He hadn't quite expected his idea to work, much less to this extent. Instead of making any moves, the demon lord merely began raising the strength of the mist surrounding Ryu, now that she had begun to breath in even harder, seeming to try and shake off her arousal that way. Pity, it wouldn't work. Instead, her lust only grew even stronger. By now, the demon could smell the juices of her arousal as her shorts indeed began to grow wetter in between her legs. 'Ahh, let's see just how far you can go before you can't take it any longer, my dear girl...' Fornicarus laughed silently to himself as he kept on strengthening the girl's lust, her arousal only growing even stronger by the second. By now, surely it would feel as if every cell in her body was demanding for pleasure, screaming out for stimulation of any kind. How long would she last until those legs of her couldn't stand up anymore, desperately needing to scratch at this particularly stubborn itch? How long would she ignore her body's growing demand for her to pleasure herself, here in the privacy of the exercise room. There was no doubt in the demon's mind that by now, lust was grinding down on her mind, pushing her into doing something, anything, about the incredible heat in between her legs, to do anything to calm the hardening nipples straining against the fabric of her shirt. 'No one can ignore lust, not least of all a simple girl like you...'

Ryu couldn't stand it anymore, her fingers slid off what she held onto, then the young woman descended to the floor, resting on her knees. Her legs were trembling, her hands were shaking as she could barely keep them from touching certain places. Indeed, the lust was driving her crazy, coming out of nowhere and steadily building up. Eventually she was giving in, spreading her legs apart as she took a look around. Fortunately the room seemed to be empty, but Ryu was hesitant, nobody should refer to her as the slut who did it to herself in the exercise room. That thought faded into nothingness as fast as it came to her inner eye, fingertips started to caress her already wet sex, she didn't care anymore. It was too much of a pain to withstand. "Ah .. T-that feels .. hah .. incredible." At this point her only focus was to get herself worked up in order to get rid of the heat cursing through the student. Unfortunately that wasn't enough, already parting her own lower lips through the cloth she traced them relentlessly, eventually creating a friction against her erect clit at the end of every stroke. Meanwhile her other hand, now not needed at the spot anymore, reached up to her sensitive chest, instinctively grasping one of the large orbs, squeezing and molding it immediately as lust overwhelmed her, a hardened nipple against her palm. Tender moans began to fill the air around her, if she didn't force herself to be quiet someone would hear her without a doubt. At the simple thought she blushed even more, nonetheless kept going as her hands didn't seem to help.

Pleased with his results thus far, the Marquis watched unseen as the girl gave in to her lust, unable to stop herself from trying to pleasure herself. The monster made sure to ensure that the mist retained its potency, making sure that the girl would stay the way she was, unable to make her lust lessen or go away at all. However, the results he had thus far was quite encouraging, and the demon lord decided to try and take it a step further, by mixing temptation in with the lust. With every breath the girl took, the mist slowly worked hidden suggestions into her mind and body, encouraging her to go further with her activities. Such suggestions would work their magic on the student, telling her to get rid of her clothes, telling her how restricting they were, how they got in the way, and most especially how much wonderful it would feel to masturbate in the nude. Most of all, they were telling her just how much more incredible it would be to play with herself, without anything in the way. Slowly, the mist worked on feeding the girl growing urges to strip herself, making her think of how naughty it would be to finger herself in public, the fear of being caught much too erotic to ignore. They moved in such ways that she would have no idea that they weren't her own thoughts, her own urges. Truly, they must have seemed quite natural, all too innocent, and not the work of some nefarious beast. This was only because the mist had been telling her that it was quite safe, that if there were indeed any monsters around, they would have pounced already, that no students would certainly be out this late. It was telling her that she was very much safe here. 'Yes, allow the power of temptation to rule your body and soul... Give in to what your body craves so much, my dear...'

As she was dealing with the various suggestions within her mind, she came to realize that those were actually tempting. A voyeur at times, Ryu found pleasure in being watched and end up within the position of her usual subjects as well, however never before did she imagine that the fear she experienced as she was trying to get off in public would be unbelievably erotic. As the woman stopped for only a second she could feel it made about no difference, her lust remained while she wasn't getting any pleasure, thus she had to hurry. Carefully her hands got a hold on her shirt before she pulled it up, revealing the firm roundness of her breasts, her nipples basically trying to push through the white bra that kept them within their bonds. Then she discarded the cloth, running her hands along her slightly pale skin down to the blue shorts, trying to push them off. Ryu couldn't tell why, but she had the urge to get rid of everything, that her clothes were nothing but on obstacle and hindered her as her masturbation would feel so much better when she was nude. Once each part of her gym clothes was discarded, creating a small pile, she could barely hold it anymore. Within a glimpse she slid towards the handles of the treadmill as she chose one of them, then positioned herself on top. No monsters would find out how naughty she would be, no student would ever know, it was too late for any to come around the gym at this hour. With this knowledge she placed her crotch on the handle, her hands worked to keep her without losing balance, then resumed to rub her wet sex against the machine while her heavy breasts swayed back and forth. A loud moan escaped her, this time echoed throughout the entire room as she didn't quell her voice. Within an instant the handle was covered in her love juice, the red head's moans filling the air as she sought ever increasing pleasure.

Quite pleased with his successes, the Marquis watched with growing appreciation as the young woman carried out what she thought were her own desires, taking off her clothes piece by piece and leaving them in a pile. She was certainly no small beauty, the demon privately thought to himself as he plainly ogled her heavy breasts, almost wanting to just go ahead fondle them. Quite taken with the young woman's impressive bust, the Marquis grinned as he finally decided on a plan, one that took advantage of the need for him to test his mist further. Even as the student climbed onto the machine, determined to satisfy the burning lust within her body by any means whatsoever, the Marquis began to reform his body, growing more solid as he moved from his hiding place. Gathering himself, the demon lord seemingly grew from the floor behind her, returning to his original form. Even as he did so, the Marquis held his arms out, approaching the girl from behind. "Ahhh... What do we have here?" The monster grinned as his hands suddenly slid onto her body, two of them closing down on her hips as the other two ran over her large breasts, squeezing them as he did so. At the same time, the mist continued to work its magic on her, clouding her mind further and further with the desire to be satisfied. Now, it whispered into her lust-filled body, saying that here was a wonderful opportunity for her to get what she craved. Yes, the mist added, why not allow the monster to do what she wanted to do, then make a mad dash for freedom once she had gotten what she wanted? It all sounded so reasonable, so doable. Even as the monster continued to feel her up, the mist made the sensations even stronger, nearly impossible to resist or ignore.

Lost in pleasure as her wet slit grinded back and forth, she found herself in the center of attention as hands surrounded her, settling on her hips and breasts before their owner decided it would be fun to squeeze them. She was initially working out ideas in her mind, things that involved the monster's intentions for the approach and the uncontrollable lust flowing through the woman herself. The movements stopped entirely as she groaned out by the terrific pleasure he gave her, simply stunned by the sensivity of her chest, even arching her back a little as she brought more of it into his palms. "Tha- ahh .. T-that is none of your business .. L-leave .. leave me alone." Every monster she met before would never leave when told to, neither would the one who was groping her breasts, but in an instant an idea popped up within her mind. To use monsters to her advantage wasn't something she was trained in, but she needed relief, just once to make the burning disappear. And after that was done there was always the possibility of an escape, it simply had to work out. Her body had begun to shiver at times, given the sensations that rippled through her young and nubile flesh. "N-no .. w-wait .. Ahn .. This is .. Uhn .. unbearable .. Plea- .. please .." It was only then that she turned her head, red eyes staring at the monster, reflecting the misery she was in. Her eyes widened significantly at his intimidating appearance, but had to submit to their weary expression once again as hands roamed over her breasts. However, she was in need, he was the one she'd take advantage of because even then, she could feel the pleasure well up inside her core, quickly leading towards a climax although he was simply fondling the soft orbs of her. Ryu couldn't stop moaning and while her moans and gasps became more intense, he'd definitely notice how much of a treat he was giving her.

Saying nothing in response, as he didn't really need to, the Marquis grinned as he then acted as if he was about to leave, only to be stopped by the young woman's plea. Giving her only a dismissive grunt, the demon lord returned his attention to her heavy breasts, now fondling and squeezing them in his hands, even as his fingers teased and toyed with the sensitive nipples. The demon could certainly tell how much she was enjoying it, given her moans of pleasure. This only told him that his mist was working far better than he had dared hope for. The hands resting on her hips, however, moved into action as well. The Marquis watched as he used one hand to slip under the woman's leg, pulling it up as his other hand slipped in between her legs, teasing only the clitoris with his fingers for now. It wasn't long before the demon finally pulled Ryu off the treadmill and had placed her down on the floor, against her back. Without so much a warning, the Marquis moved in between her legs, his rough tongue snaking out and quickly slurping against the woman's nether region, savoring the taste of her wet juices and teasing her once again.

Lust ruled her, unknowingly offering herself to a demon that took advantage of her from the very beginning. Her hips bucked forward as he wrapped the poor student around his finger, though teasing her the whole way through she was becoming putty in his hands. Ryu settled back against the ground and moaned loudly, her fingers attempting to dig into the floor as he had his way with her. But it simply wasn't enough, the heat wouldn't fade, her lust wouldn't disappear as long as she wasn't brought to the desired orgasm. It was the delay between stimulus and climax that was taking its toll on the woman's mind. Looking at his captor with half lidded eyes, filled with want as the monster worked his magic on her, she could feel the desired closing in as he was eating her out. "P-please m-more .. Ahhn I'm going to c-cu- .. Ahh .. cum soon!" Giving out moans and gasps at the assault on the girl's tender lips and tits, he would find that her nethers twitched occasionally, revealing her pleasure yet desperate need to feel more. In the back of her mind however something was telling her that everything worked as planned and there was no need to worry about getting away once she was satisfied.

As addled by the mist as Ryu was, she was all too vulnerable before the demon's ministrations, the mist constantly whispering into the student's mind just how wonderful it felt, just how incredible all this was. More to the point, it was telling her why bother running away, even though she most certainly could do it, when it felt so good?. It was telling her why not just stay here and enjoy all the monster had to offer? Throughout the Marquis' efforts in eating the student's pussy out, the mist kept her all too focused on every sensation she felt, driving her hotter and wilder with pure lust and raw need. After all, there was only one monster here, the mist reasoned. They never traveled in packs, the mist explained. That certainly wasn't how they worked, the mist said with absolute certainty. There hadn't been any students either as well. Therefore, the mist whispered into her innermost thoughts where she was most vulnerable to its suggestions, why not take the opportunity to let the monster fuck her brains out, with no one to see it at all. No one would ever accuse her of being a slut, of spreading her legs so easily. No monster would see her give herself freely to one either. And plus, the mist added, wasn't it so much better to do it willingly? No one likes being raped, after all. And even if she got away, there could always be another monster or two on the prowl. And those, she probably wouldn't be able to escape either, the mist said reasonably. Why bother getting raped later on when she was so much safer just saying here and enjoying the monster in between her legs. Throughout it all, the demon lord kept on slurping away, licking at her folds, savoring the sweet taste of her juices. It wasn't long before he moved away from her legs, leaning over the girl now, his thick cock now sawing against her slit. "Perhaps I didn't hear you right... Did you ask for more?" The Marquis grinned as he waited for her response, knowing full well how deep she was within the mist's power.

Absorbing the mist's suggestions completely, she couldn't help but give in as the monster's tongue worked its magic on her lower body. Ryu was panting heavily at this point, the raw energy of her lust keeping the heat at a high level as her swollen lips were practically begging to be filled, her nethers contracting by the movement of his shaft against them. It took her a bit of time to focus, to see through the blurred part of her mind, making it hard for her to speak. "P-please Ah! .. t-take me, stuff me with your hot rod, Ahn .. I beg you." The mist was bombarding her with all these facts and reasonable excuses to get rid of her wants that way, she did need it badly thus she couldn't do else but comply. She'd make use of him and he'd make use of her, it made sense to enjoy this to the fullest although deep within her mind she knew it was wrong, but totally overwhelmed by lust and the demonic mist without her even knowing about it. He wasn't the most unattractive type either, the specimen quite muscled and well endowed as the woman noticed his sizeable girth. Though she prefered to be seen as a strong woman, she basically had a weakness for stronger male sexual partners. "F-fuck me .. " Her tone was soft but once again her expression revealed how desperate she was, how needy. The red head managed a few words between her moans and gasps, almost considering to move by her own and force him to do it. His grin didn't make her less submissive, it only helped her mind to slip further into his grasp.

With the mist constantly urging her on to allow the demon to do as he wished with her, for the sake of satisfying her own needs, the Marquis only kept on grinning as his tail quickly shifted into strong legs. Kneeling on the floor, the demon lord used his upper hands to slid up the back of Ryu's thighs, pushing her legs into the air as he kept on sliding his cock against her puffy nether lips, the bottom hands sliding over her ass, spreading the cheeks apart and leaving her even more vulnerable before the monster. Without further word and without needing further mist-induced encouragement, the Marquis slid his cock back enough to angle it against the opening of her pussy, and began to push into her, almost all too easily as the heated walls of her passage were so wet with wanton lust. No longer needing to tease her,, the demon could see the need painted all over her face, even if it was encouraged by his mist, there was no question that her body was craving it. The Marquis began began sliding in and out of Ryu, pulling out slowly and allowing the thick girth of his meat to leave her feeling empty before bucking it back into her roughly, crushing that feeling with the sensation of being filled so much. With the mist keeping her quite willing, the demon lord began moving at a steady pace, humping hard against her, stabbing the hard shaft into her every time.