Darkness(Isekai Quartet)

Warning Tags: consensual sex, monster sex, monster dick, temperature play, fluffy compliments, and feel goods, minor body worship

Cocytus found his current situation increasingly bizarre as each day went by - this 'school life' he was supposed to be enjoying often nothing more than a waste of time. However, he had been instructed by Lord Ainz to do his part and follow the rules, and so Cocytus knew it was his utmost duty to follow those orders.

As such, his current role as head of the gym committee fit him surprisingly well. As the strongest member, it was only natural he had been chosen for the role, and Koenig, Neumann, and Weiss, although human, we're all exceptionally disciplined men who knew how to follow orders and do them well - perhaps in part due to the training on the part of von Degurechaff, as Cocytus understood they seemed to be under her command.

The one person who Cocytus had doubts about, however, was cut from a different cloth than the three men. Darkness was someone who genuinely made him pause at times, because her actions caught him so off guard, as they were so unexpected coming from a human such as herself it made him unsure of how to act around her. Despite her rather unusual interactions with him, he had to admit she was exceptionally trained, he had noticed as much - being able to complete the tasks he set out for her with vigor and determination.

He was about to join Lord Ainz and the other guardians after completing his duties in the gym when Darkness had approached him. The girl was clad in her usual armor - which was built in a manner rather unpractical in a manner of speaking, but perhaps that had been her intention when choosing its design. He tried not to stare at her breastplate for too long, hoping she would not get the wrong idea of why his eyes had been looking at them.

"Sir," Darkness looked as if she was trying to remain calm, however, Cocytus could tell it was not easy for the girl. Her face was as heated as ever whenever she was near him, and she gritted her teeth slightly as she waited for a response, as if trying to keep herself from expressing herself as she usually did.

"What is it, girl?" Cocytus asked, before letting out a rush of cool air from himself, right into Darkness' face. Perhaps unintentionally so, but it made her whimper, and he could see the visible strain it did on her body - how she had to hold herself from falling apart at that very moment. It honestly concerned him somewhat that a warrior such as herself would have such a reaction to being around him, but he put that aside for now.

"I need you, ah-" she paused, her eyes averting his gaze, not seeming to be able to look directly at Cocytus as she spoke, her face becoming redder and redder by the second. "I need your help with something."

"What is the matter?" Cocytus decided to go straight to business, not wanting to waste much time. He knew Lord Ainz would be waiting for him, so he did not want to dally around longer than he necessarily had to. However, he would wait to hear Darkness' request, as was his duty with someone who was under him. He hoped that lord Ainz wouldn't mind, as he was certain he would do the same for Cocytus in such a situation.

Darkness did not respond immediately, looking down at the ground so he could not see her face. "I-" she paused again, her breath hitching as she took a step closer to him. She likely was not used to being so close to someone like him, and given her disposition, he wasn't surprised that she might be distracted. "You've probably noticed how I act around you already."

Cocytus nodded, not saying anything, and waited for her to continue. She looked practically ready to melt under his gaze as if something was pleasing about being so close to a monster such as himself. It began to dawn on him that this was perhaps the issue she needed help fixing with - although he wasn't certain how exactly that would work.

"I want you to-"

"You want me to have sex with you?" Cocytus interrupted the girl, which made her visibly shiver as she bit down on her teeth to hold back a moan as she nodded slowly. He was not surprised that was her request, in all honesty. Letting out another rush of cold air, hitting Darkness directly on the face. She seemed like she was going to say something, but he interrupted her before she could.

"How will helping you benefit the gym committee?" he asked, deciding to take this from the perspective of a leader - as Lord Ainz would do. Maybe it was silly of him to be entertaining the idea of having sex with a human, but he could not help it. It was his duty as a leader to at least hear out before making his decision.

Finally, the girl responded to his question after a moment of pause, her face strained as if trying to make herself somewhat presentable. He had to commend her willpower, as it seemed to put a lot of pressure on herself to keep her from acting as she normally did around him. "If you were to have your way with me, I am sure it will help me with my duties as a member of the gym committee! After being used by such a strong and surely dangerous individual like you in a manner however you'd like, I am sure I will be able to focus again."

Cocytus genuinely thought about this for a moment. As the leader of the gym committee, it was his duty to help the humans under him with their problems, no matter how silly they seemed, and especially if they were detrimental to their performance - or at least, so he reasoned. It was not a far cry off from something Lord Ainz would do, although he had a hard time imagining him doing anything like this.

If it was his duty as head of the gym committee to look out for and aid the members under him, then he supposed this would fall under that as well.

"Very well. Let us head to the changing room at once."

***

Once they both had entered the changing rooms, neither made a move as they looked at each other. Cocytus was generally unsure how to start this, especially as his ultimate aim was making sure that Darkness' issues were solved. Therefore, he looked at her expectantly, letting out a cool breath as he waited for her instructions.

It seemed to strike her eventually, after a minute or so of continuous silence, that he was waiting for her to tell him what to do. Eyes widening, she seemed to be caught off guard, although he could not tell why exactly. "I want you to strip and degrade me and my body, to treat me like I am worthless, to tell me I am unworthy of my role in the committee," Darkness made her request quietly as she took a few steps forwards, looking directly at Cocytus.

The instructions troubled Cocytus if he was, to be honest. While he had no issue with stripping the girl nude, it was the degradation part that he found himself uncomfortable with. While he would gladly insult a human if he found them lacking, that was simply not the case with Darkness. No, she was a strong warrior who possessed a well-honed body, which did not deserve to be shamed. He had a hard time thinking of anything exactly degrading to speak of when it came to Darkness - despite her rather disturbing sexual requests.

Starting with her shoulder plate on her left side, he raised her arm with one hand to unbuckle it from her properly with two others, which made her let out a confused noise as she looked up at Cocytus as if looking for an explanation, which he did not give. Placing the shoulder plate aside, he did the same with the cloth-like material on her right shoulder.

"Wh- What are you doing?" Darkness asked, the confusion evident in her tone as he continued to strip her of her clothing, moving two of his hands to untie the red ribbon on her chest before gently placing it alongside the other clothing, organized neatly in a line.

"Stripping you," Cocytus said plainly, before forcing Darkness to raise her arms so he could pull her breastplate off from under her head. She complied without any signs of resistance, which he was grateful for. As he placed the breastplate to the side alongside the rest of her armor, he took a moment to look over Darkness again before continuing. "You have a very nice body."

"Wha-?" Darkness audibly gasped as he continued to take off her clothing, piece by piece, and neatly put it to the side, and she continued to whine in confusion as he did so without degrading her as she had asked him to. Despite defying what he had been told, however, she seemed to almost be enjoying this instead, letting out rather heated breathes as he continued with figuring out the best way to take off her armor without damaging it.

"You have very strong muscles, fit for a warrior such as yourself," he mused half to himself, but also to compliment Darkness, as his hand went over her arm for a moment to admire her body. "You should be proud of these, girl."

"To think, I am being complimented by a monster - a monster who will soon have his way with me" Darkness panted under her breathe, her free hand grasping at the remaining cloth on her as she let out a moan. She seemed to be enjoying this as much as she would have if he had gone with her original proposal, which was good - he did not wish to diminish her esteem, but he also wanted to remove the cravings that had been distracting her. Cocytus continued, pleased with himself.

"Yes - and you will enjoy yourself, girl," Cocytus assured her, finally beginning the last stages of her undress. Now, all that Darkness was wearing was a rather plain black shirt, and a matching pair of black pants, which hugged her body to emphasize certain assets. He wouldn't have been surprised to learn this was intentional on her part.

Stepping back for a moment, he looked her over one last time before his hand moved under her shirt, gently moving along her abdomen as he admired her strong midriff before his other hands began to slowly and carefully peel off the skintight shirt from her body, as he had done with the rest of her clothes. He was careful to avoid touching her breasts - instead preferring to ignore those for the time being.

Once he took off her shirt, he admired her scars for a moment. They were all located all over her body, some worn out and fading and others fresh, looking like they had only healed recently. Moving a finger over a rather long one starting at her shoulder blades and trailing down her back, he looked at Darkness again in the eyes.

There was still confusion apparent on the girl's face, but it was barely there now as she looked back at Cocytus, as if she wanted to say something, yet no words came out of her mouth, only heavy breathing. Letting a cool wave of air blast her in her face, Darkness let out a whimper as Cocytus continued to move his hands over the rest of her body, four well-trained hands exploring the scars carefully.

"You've been in many battles," he said, a hand brushing across her abdomen, before slowly edging upwards. "It is rather impressive for a human."

"M-most people don't find th-them very impressive," Darkness said, looking to the side, her face rather flush. It surprised Cocytus that she was being open about that, considering just who he was and what she considered him to be, yet he did not comment on that, for now. He could tell it was something personal, and he did not wish to pry more than he had to - this was very much not the time for that.

"They are beautiful," he said, his hand finally touching her breast, making her whimper slightly. Careful not to scratch her, he let out a wave of cool air, trying his best to calm himself and not to do anything too rash as he moved a second hand over her other breast, kneading them slowly. "Your scars show your courage and resilience."

"S-so cold," Darkness muttered under her breath as she continued to look up at Cocytus, shivering slightly, although he was not sure if it was because of the lack of heat he was emitting or because of her arousal, or a mixture of both. Flicking a finger over her nipple, he continued his best attempt at not harming her soft flesh in any way. He noted that her chest was less scarred than the other parts of her body - perhaps the impractical-looking breastplate had its uses, after all.

While those two hands were busy, he put the lower two to use in taking off her pants. Grabbing it carefully by the hem, he slowly shuffled it down her hips. However, despite his care, a sudden movement by Darkness resulted in an accidental tear in her pants along the sides.

"Your clothing has been torn," Cocytus said, taking his hands off of her breasts as he quickly removed the rest of her pants so she was only wearing her undergarments. "That was not my intention."

Darkness didn't respond, and for the first time, Cocytus could not tell exactly what she was feeling. Perhaps she was nervous, at being so bare and open in front of a powerful opponent, or maybe she was aroused at the thought of what was to come. Maybe it was both, and maybe a bit more than that. There was no use wasting time speculating, he decided.

"What now?" he asked, having fulfilled his duty of stripping her. Darkness looked at him for a moment, before realizing he was waiting for her to tell him what to do. Quickly, she shoved her undergarments down by her ankles, stepping out of them and kicking them behind her, a lot less neatly than Cocytus had done. Looking up at him for a moment, she was visibly shaking.

"You can do whatever you wish to me," her normal demeanor seemed to have returned for the moment, her legs trembling as she held herself as she spoke. "Pin me down with those four strong arms and take out your large, thick, and throbbing cock, using me as you please while I desperately try and hold out, until it is too late, and you break me-"

"I will not break you," Cocytus interrupted her, taking a step forward, letting another rush of cold air come forth as he breathed out. "I intend to help you solve your problem. Not exacerbate it."

"I-" Darkness looked at him again with wide eyes, just like she had when he had begun stripping her. The idea of what she perceived to be a monster, such as Cocytus, having the capability of treating her like this must have been new, or else she would not have been so nervous when he stepped forward.

"I shall have my way with you, girl, but not in the manner that you wish," he continued his explanation, taking another step forward, his lower hands grabbing her wrists and slowly lifting them. "It is not fitting for a warrior such as yourself to be demeaned in the way you wish for me to act."

When he was close enough to her for them to practically touch, Cocytus finally let his cock come out from its slit, pushing out from under the layered carapace as they unfolded, and let it come out, the tip of it aimed against her throat, before being pushed upwards and hitting her chin. The bottom part was slippery and surprisingly soft, thick and easy to move around, while it thinned out the closet it got to its tip, with that part being a lot harder and dense, with a bump at its head.

"This is a monster's cock," Darkness said, mostly to herself as she paused to admire it for a moment, placing her fingers around its head before moving them down until she hit his carapace, covering her hand in the viscous fluid which provided lubrication. Placing her other hand at its base, she moved it to the head was directly aimed at her mouth. She was practically salivating, Cocytus noted, although he did not comment about it.

Letting go of her wrists temporarily, he moved his lower hands to pull her up by her hips, his two upper hands grabbing her by her armpits as he lifted her. Darkness let out a surprised squeal at his action, as he tried to position it so her entrance would align with his cock, which he moved so that it was aimed upwards.

Lowering her downwards, Darkness wrapped her arms around his neck, pushing her breasts against his chest. She seemed to be closing her eyes, bracing herself, which was an understandable reaction. Perhaps, for all her wishes, she was scared at what was about to happen.

"It will be alright," he assured her, before slowly beginning to place the head of his cock along her folds. Her reaction was nearly instantaneous as she let out a loud whine, still not looking at him, Darkness' entire body shivering. He let her slowly fall, pushing himself inside of her as she let out another moan.

"S-so b-big," she groaned out from under her breathe, "so b-brutish, so strong." The idea of him being 'large' for a human slightly amused him - considering his length was considered an average size among his species, However, he did not wish to be distracted by such vain thoughts, and so he continued to put his focus on making sure Darkness remained comfortable.

Eventually, he reached a bump, and so he stopped letting her down and simply let her rest with his cock inside of her. Darkness squirmed for a moment, grinding her hips slightly as she tried her best to get comfortable, gritting her teeth. He waited until she got used to the feeling of having him inside of her before he began raising her upwards.

Moving his upper hands from her armpits, he moved them down to her waist, while his lower hands moved to steady themselves further by holding her along her outer thigh, before lowering her down again. Darkness made loud whimpers as she let Cocytus' cock slide back into her, letting out a loud moan as he hilted himself inside of her once again, before pulling her up again.

It felt surprisingly good for Cocytus as well, to have someone wrapped around his dick - although he did not possess a sex drive as humans did, he did enjoy it casually and he derived pleasure from it. Feeling her insides loosening as she was pushed downwards past the hard parts, he let out a breath of cold air, right at Darkness, trying his best to keep himself calm as he continued to bounce Darkness up and down on his cock.

"Your c-cock," Darkness moaned as she looked up at him, a sliver of drool coming from her mouth looking as if it had frozen on her face, stuttering on her words, "it's s-so c-cold."

Cocytus stopped for a moment, unsure if this was a positive or negative comment before he could feel Darkness beginning to move her hips on her own, raising them upwards slightly before dropping down again. Eventually, he did not even have to guide her, simply holding her up as she moved focused on making sure that she felt pleasure from this experience - and Cocytus was happy to let her do just so.

He could feel her inner muscles tightening around him as she came, as she let out a long and drawn-out groan before bringing herself up from his cock and simply hovering above it for a moment, her warm juices spilling onto both it and the floor until she finished orgasming. Once she had finished, he lifted her to look at her face. She seemed to have drooled more, as there were more slightly frozen trials of saliva that went down from her mouth and down her chin.

"More," Darkness moaned, leaning forward and kissing him between his eyes, making his mandibles twitch. He wasn't sure how to react to that, letting out a wave of cold air onto her body, freezing quite a bit of sweat that had accumulated on it. As her body shivered from the cold air hitting her bare flesh, she let out a pleased whimper, clearly enjoying the cold air and the freezing sensation, although Cocytus wasn't exactly sure why.

He also wasn't sure why he wasn't displeased by the fact she had kissed him. However, those thoughts would have to be put aside, for now, so he could focus on the task at hand.

"More?" Cocytus asked, looking directly at her to get confirmation. Her hair certainly was a mess, he noted, with strands of it frozen together. He wondered how resilient Darkness must have been to withstand such temperatures, and again, he wondered how she was deriving pleasure from such cold. It wasn't like any human he had ever seen, and it was simply another reason to add to his growing admiration for the human warrior.

"Uh-huh," she nodded enthusiastically, and before she could even react, he flipped her around and got on his knees. Letting out an excited squeal as she was placed onto the floor, she raised her rather firm-looking behind at Cocytus, who continued to tower above her. Looking at her, he admired her form once again, before guiding his wriggling cock towards her entrance again, the small yet bumpy tip resting along her lower lips.

He had to remind himself quickly he was doing this simply because it was his duty, although it was becoming increasingly hard to focus on that exact reason, especially as Darkness crawled backward along the floor, pushing apart her lips as she slipped the tip of his cock inside of her completely of her own volition, before pushing it in further, beginning to fuck herself steadily on Cocytus' length while he was processing what was happening.

A wave of air rushed out of him as he practically gasped in surprise, however, he quickly steadied himself by grabbing her by her hips to control the tempo of her movements. Whining as she was forced to go at a slower pace, he hoped he would make it worth her time as he began to thrust harder into her than he had been doing before, quickly changing Darkness' whines to pleasured shouts, incoherent but comprehensible enough to tell that she was enjoying this.

This continued for some time, neither of them stopping until he could feel himself coming closer and closer to his climax. "I am close," he said, his voice strained as he continued to pound into her despite knowing he was near his ending point. Without waiting for Darkness to respond, he pulled out, making her let out a disappointed sigh as he stroked at his sensitive head, admiring Darkness' body as she laid there one last time.

Finally, he came, the viscous thick pouring out of the tip and onto Darkness' ass and lower back, continuing to pump out as he let out a groan. He saw her looking back with a slightly disappointed look on her face. "You should have come inside me," she said, as the final droplets of cum were pushed out of his tip.

"Was my performance satisfactory?" Cocytus asked, slowly standing up as he let his cock simply fall. When Darkness did not rise, he leaned down and carried her in his arms.

"More than satisfactory," Darkness mumbled, closing her eyes for a moment as she pushed her head into his chest. He wasn't sure why she was being as affectionate as she was, or why he was not stopping her, but he began walking towards the shower stalls, to clean the both of them.

"We will have to do this a lot," she smiled, looking up at him just before they were about the enter the shower stall together. "For the benefit of the gym committee," she quickly added, as if the reason why they had done this in the first place had been an afterthought in the back of her mind.

"Yes," Cocytus agreed, looking back at her pleased face before she closed her eyes again. She was truly an admirable individual, he found himself thinking. "For the benefit of the gym committee."

***

"Where are those two going?" Kazuma asked, looking over at the big blue bug man and Darkness leaving to go off by themselves. They had been doing that a lot recently, although he wasn't exactly sure what the two of them could be doing besides Darkness making the giant insectoid incredibly uncomfortable with her lewd comments.

"They're going to have sex, most likely," a voice behind him spoke - one of the people from the war world. Neumann, Kazuma thought his name was.

Kazuma couldn't help but laugh at that remark. Darkness? And the giant bug man? Having actual, consensual sex, and leaving to go do so in such a calm manner? The very notion of that being a thing seemed ridiculous. "Don't pull my leg like that. What are they doing?"

"It's true," Nuemann said calmly, before glancing over at one of the other war world people - the one with thick eyebrows Kazuma didn't remember his name, but it didn't matter, as it turned out. "Weiss saw them having sex in the locker rooms. Isn't that right?"

"I did - although, I did not catch much of it, as I promptly left as to not interrupt them," Weiss admitted, ashamed look on his face as he closed his eyes and let out a sigh.

"You're kidding, right? You have to be kidding me!" Kazuma's eyes widened - no, Darkness could never have possibly convinced someone to have sex with her and have that same person, no, monster, enjoying it. That simply wasn't possible. That defied everything he knew about Darkness up until now.

"I would not lie about something like this," Weiss stated plainly, his face twitching slightly, probably annoyed by the way that Kazuma was acting. "I- Are you okay?"

Falling on his knees, Kazuma couldn't believe it. He just straight up refused to believe that Darkness could have possibly gotten laid before he did. The idea that such a creepy, masochistic good-for-nothing would be able to do that. He felt defeated, hopeless, and so utterly ashamed of himself.

Remaining in his seat in the far back row, Natsuki Subaru looked rather smug, feeling proud of himself that his advice had finally helped Darkness get her desires, after so many tries.