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He can feel the effects of the drug setting in already, which means that it is about time to start testing just how effective it really is. Increasing stamina in any way always exists as a goal pursued by great minds everywhere, and Mayuri likes to think that he has made leaps and bounds in that field of research, but he also likes to think that there are always new discoveries just waiting to be made.
Starting with sexual stamina and working from there is a new approach, at least for him, but he is lucky enough to have an assistant to help him test his latest drug- not that she will ever hear a word of that from him. Not that anyone will ever hear him refer to himself as lucky for having Nemu around, willing to do whatever he asks of her without complaint. He will not be administering the drug to her, but that is because he has already discovered her to have a great deal of sexual stamina on her own, so she should be able to do the job just fine. Even if she tires out before he does, that will still be valuable data.
Even as he thinks about that, she is at work getting him undressed, sensing that their experiment is about to begin. Her own clothes are already in a neat pile on the floor, efficient just like everything else she does, but once again, that is not praise that he is going to give her openly. She strips him down quickly, and then waits for further instructions, standing at attention without letting her own excitement show.
He can tell, of course, because no one knows her better than he does. Even without any drugs coursing through her system, he knows that she is aroused already, used to looking for such signs in her. It wasn’t his intention for her to turn out so horny, but since she directs all of her lust entirely at him, he can’t actually say that he minds. At times, it can be tedious dealing with just how much she wants, and even if she would never demand it from him, he isn’t that heartless.
But Nemu’s intense sexual appetite has absolutely nothing to do with why he wants to explore his new drug’s effect on sexual stamina, nothing at all.
“On your knees,” he orders her, and she drops down without a second thought, obedient as ever. “Get to work, I will tell you when it’s time to move on to something else.” Knowing her orders now, Nemu reaches a hand up to wrap around his cock, leaning forward to press her lips against the tip. He has no need to give her direction with this part, because she already knows well enough exactly what he likes.
She starts working her hand up and down, stroking him while pressing her tongue out to start licking as well, and he can feel himself relaxing into it already. Nemu is good at what she does, and nice to look at, as well. Even if he would never praise her outright for either of those things, he thinks that it is only natural that he should feel pride in this, considering she is his creation, and this is all a reflection of his own capabilities. Some might argue that her beauty and ability to suck cock would not fall under such a category, but Mayuri is inclined to disagree with that.
It is not long before she has moved on, her hand dropping as she starts to engulf him in her mouth, taking his cock deeper and deeper. He lets a hand rest on the back of her head, sighing in contentment, pushing forward a bit, though not taking the lead just yet. There will be plenty of time for that later, if this drug is even half as effective as he expects it to. It will be hours before he is done with her, so for the time being, they can afford to take it slow, and he can afford to let her completely take the lead with him.
Pushing forward, she does not slow until his cock is completely buried in her mouth, pushing down her throat. He fucked the gag reflex out of her a long time ago, and she has no trouble taking him this deep, looking up at him with an expectant look in her eyes, her cheeks slightly flushed. For someone as dull as she is, she sure does wear her feelings all over her face, wherever her master is concerned.
Ah, but she prefers to think of him as her father whenever they’re intimate, doesn’t she?
He may have made her, but he definitely did not make her as much of a freak as she is. Wherever that came from, it is something that she has developed on her own, and while he gives her a hard time for it often, he does find it interesting to make notes of all of the different interests that she develops along the way. In that way, fucking her is a form of research as well, and certainly nothing anyone could blame him for.
Not that he gives a damn one way or another. As he relaxes more and more into her blow job, he reflects on just how little he cares about what anyone else thinks, because it is expecting quite a bit to expect the common idiot to be able to understand any of his work. And if he wants to indulge in something that he has created, it doesn’t really matter if that contributes to his research or not, because he has already put so much work into everything that he does- he deserves to be able to really relax every now and then.
This isn’t relaxation, though, no matter how good it may feel. As he groans, reaching his first climax, gripping the back of her head tight as she swallows it all, he says, “That’s one, now, don’t lose count. You and I both need to keep track of these things, so try not to let the numbers slip out of that empty head of yours.” His voice is breathless, but he still manages to get that order out to her.
No, this is not relaxation, this is work. The fact that he is not done now, that he feels an unbearable need to keep going, is enough reminder of that. He has a bit more stamina than just one round normally- he would have to, to be able to tolerate Nemu’s insatiable self- but even so, he can already tell that this is a lot more than what he is used to dealing with. Another round or two is not going to sate him, is not even going to come close, and so, he does not pull out of Nemu’s mouth, not even giving her a chance to catch her breath before he moves right along.
“Continuing the experiment,” he says, as he tightens his grip and begins to thrust forward. “Switching tactics after the first climax. I will be taking the lead, so make sure you can keep up.” She moans in response, but it is not long before he is thrusting so hard and fast into her open mouth that she is completely lost in it all, moaning and drooling, so pathetic and helpless.
Mayuri loves fucking her face like this, going as deep in her throat as he possibly can, just using her like some kind of doll. Even better is how much she loves it, proving every time just how pathetic she is, and just how happy she is to be able to serve him in any way. It might be cute, if it weren’t so pathetic, and if he were capable of considering anything cute.
His creation does not choke on his cock like she used to, when she was much younger, but his study of her loss of gag reflex has long since been concluded. This is not new data, and nothing worth making a mental note of. More important right now is how close he already is, overwhelmed so quickly by the way he fucks her mouth, and he knows that he will not last long, that his second orgasm is imminent. He has to remember how quick this second one was, as soon as he is able to make a proper note, but for right now-
Just before he comes, he pulls out, so that he covers her face in it, making a mess of her as she pants, trying to catch her breath, her mouth hanging open. Mayuri is panting now as well, and he stumbles back from her, mumbling, “Stay right where you are, while I- no, you can clean your face up, but come right back to me, I’m nowhere near done with the tests yet, I just need to write this down. That’s two, by the way, we still need to keep count.”
She nods dutifully at everything that he says, and gets up on shaky legs to clean herself off while he goes to make notes about his first two climaxes, and the approximate amount of time between the two. He does not believe keeping completely accurate timers on everything will contribute that much to the overall results, but if he finds that to be incorrect in the future, then he might have to run these tests all over again. Nemu certainly would not complain about that, not that she ever complains about anything he orders her to do, but this test in particular, she would not mind running again and he knows it.
But he thinks the information he is gathering is already sufficient, so any repeats will likely be for recreational purposes, rather than educational. Well, he does deserve some time to relax, after all.
When he returns to where he previously stood, Nemu is already back on her knees, her face spotless, cheeks flushed in anticipation. She is squirming a little bit, trying her best to hold still, but the poor slut is so horny by now that that’s impossible. It seems it is about time he do something that benefits her a bit more directly, both because she is getting so riled up and because it is time to create some variations in the experiment.
“Stand up and bend over,” he orders her, and she is on her feet in no time, facing the other way and bending over in front of him. He takes his place behind her, running his hands along her body, rubbing the tip of his cock against her. “You’re absolutely soaked, Nemu, and you haven’t even been given any drugs. That’s all just natural, isn’t it? Absolutely pathetic.”
“My apologies, fa- master. I got a bit excited while we were-”
“You don’t have to tell me, I was there, it just happened,” he says with an exasperated sigh. “And if you insist on calling me father while we run this experiment, then I won’t stop you, though I still have no idea how you got that into your head.”
Perhaps their relationship is like that of a parent and child, if one squints while looking at it. She is the closest thing he is ever going to have to a child, at least, but the fact that she prefers to look at things that way, specifically while he fucks her, is incredibly depraved. That depravity does not bother him in the slightest, considering his position as a scientist, but the incestuous nature of their relationship, at least from Nemu’s eyes, is definitely worth noting.
“Thank you, father,” she says, her voice soft. He could do the most basic things for her, and she would still thank him like this, like he has moved the world for her. Honestly, he has no idea where Nemu gets some of these traits from, because she certainly doesn’t get any of them from him.
But he has spent enough time pondering that in the past to waste his time on that now, and he is getting impatient enough, denying himself what he needs just to gripe at his creation who insists on being treated as is daughter. Mayuri is just too damn horny to worry about it, and he thrusts forward, hilting himself within her, making her cry out for him, her voice so shamelessly lewd.
She can be so quiet most of the time, but when it comes to sexual matters, she just can’t seem to help herself, so loud and so pathetic that it’s laughable. He can’t say that he minds that, and actually rather likes the sound of her voice when she gets carried away, but that is just another item on the list of things that he is never going to admit to her, the list of praise that she is never going to receive.
His hands settle on her hips, gripping her tight as he begins to thrust forward into her, his hips quickly falling into a rapid rhythm, fucking her hard and fast, with no need to bother holding back with her. She is so perfectly tight around him, the perfect fit and just what he needs. Her moans come out louder and more pathetic with each thrust, and he would not be surprised if she is the first one of the two of them to come.
“You’re so damn loud,” he scolds her, since he has already decided he can’t praise her for it.
“M-my apologies…my apologies, father!” she says, her voice starting in a mumble, but turning to a scream by the end, another moan overcoming her. Mayuri clicks his tongue and thrusts harder into her, just to make her scream again, because he loves the sound of it and because he knows that she will be self-conscious about it now, but completely helpless when it comes to actually hiding her pleasure from him.
She is a controlled and composed girl when it really counts, but he can read her like a book, especially while he’s fucking her. And once she starts to get close, he is even more sure of that, because he knew, he just knew, that she would be the first to be sent over the edge, unable to hold back as he uses her body like this, slamming into her roughly from behind, until she is sent into a screaming orgasm.
The convulsing of her cunt does turn out to be all it takes to overwhelm him, in this overly sensitive state, or at least he wants to say that is the cause, but more than likely, he thinks he would have been done in either way, drug or no drug. But it is the drug that keeps him hard even once he is done coming inside of her, even once he has started to come down from his afterglow, still so turned on that he knows he could immediately go for more.
“That’s three,” he breathes, “and my refractory period is nonexistent right now. Don’t let me forget to write that down, if you can even remember anything like this.”
Nemu’s head has slumped forward as she pants, trying so hard to catch her breath, and he moves a hand down to grab onto her braid, pulling her head back until she is looking back at him, upside down. “Did you hear me, Nemu?”
“I…I heard you, my apologies, father,” she gasps. “I was only trying to catch my breath.”
He yanks her hair hard enough to make her wince before letting go and sighing. “I really do expect too much out of a useless girl like you.” With that, he pulls out of her and lets go completely, and Nemu collapses to the ground, too weak to completely support herself right now.
“Is that all you have in you? I know you’re not going to be satisfied after one round, you’re far too much of a slut for that,” he says, and she rolls onto her back, looking up at him and shaking her head. “So, you’re still good to go, then?” Now, she nods. “That’s good, because I wasn’t planning on stopping any time soon. I’ll just have to find something that you can handle right now, even while you’re being useless.”
“I can…I can stand,” she says, and she gets to her feet, but she is shaking so much that he knows she will not be able to maintain that for long. Still, this will save him the trouble of actually having to carry her. Wordlessly, he points to an examination table, and she stumbles toward it so that she can lay down for him. They both know that it is sturdy enough to handle anything they might get up to, after years of experience with that.
Nemu loves being fucked on examination tables more than she could ever enjoy being fucked in a bed. Whether he straps her down or leaves her free, whether he has just finished an invasive operation to study her further or whether they are just fucking for the hell of it, this is her preferred place to do it, and Mayuri does not mind that, since it means he does not have to worry about leaving the lab.
Getting on top of her, he can’t stand to wait a second longer. This drug is definitely taking its toll on him, because his increased stamina and endurance come with an equal appetite, making sure that he uses up every bit of that stamina. Someday, he might have to test what happens if he tries to ignore that urge, but that is going to be difficult, mainly because he is not sure if he can trust Nemu to actually keep him tied up and not relieve him of his sexual urges. If he lost himself in it so much that he started to beg, he is sure his useless daughter would cave in no time at all.
Either way, now is not the time for that, and he pushes her legs back, allowing him the chance to fuck her that much deeper, as he thrusts into her. Again, she cries out, so loud and shameless, so pathetic and all for him, and the he does not try to bite back his own moan as he fits himself inside of her, and wastes no time before he has begun thrusting, falling into that same hectic pace, as if there has been no break between now and when he had her bent over for him.
He holds tight where he grips her, wondering if he will leave any bruises behind from this, but he is certain that, one way or another, he is going to end up bruising Nemu before this experiment is concluded. She has never said so out loud, but he has seen the way she tenderly touches any marks he has left on her body, wearing them like a badge of pride, loving any proof that he has touched her. Absolutely pathetic, he couldn’t imagine anyone more stupid than her if he tried.
But that thought still spurs him on, as he pounds into her, fucking her with a rough pace that makes her moan that much more for him, that perfect mixture of pleasure and pain that she can never get enough of. At the very least, her idiotic nature means that she takes it all equally, loving anything and everything that he does for her, and never complaining, never wanting to stop. She knows her place, and that is one thing that he can always say in her favor.
If he is planning on saying anything at all, at least, and he almost never is, so that just goes on the list of compliments that she is not going to receive, that he is not going to say.
Using her like this, it is never going to take long for him to get close, and he is not holding back, wanting any data that he can get on how this drug has effected him, and just what he can handle right now. He is the first to come this time, but Nemu just needs to feel him erupting inside of her, and then she is screaming out, shuddering as she joins him in.
Slumping forward onto her, he gasps to try and catch his breath, but the rest of his body is ready to go again already, acting as if he does not need any time to recover. He mumbles, “That’s four, and I’m struggling a bit to keep up with myself.”
Nemu is probably starting to get a little too overwhelmed, and he weighs his options as he pulls out of her, wondering if he wants to keep pushing her to see if she will break like this, or if he will go back to focusing strictly on his own pleasure, and give her some time to recover. He knows that she should be able to keep going, that she is definitely horny enough to want to, whether she is recovered or not, but it isn’t as if he is here to satisfy her needs either way.
The selfish approach is always the best one, at least in these matters, and so, he directs her to roll over and lay face down, so that he can make use of her body in other ways. As she complies, he stares down at her legs, one of her best features, though with a nearly flawless body, that is a difficult call to make. But he doesn’t make sure she dresses in clothes that expose her long legs for no reason, and he runs a hand down one of her thighs, saying, “Yes, this will definitely do the trick for now.”
He moves Nemu until she is positioned just how he needs her to be, getting on top of her, but instead of pressing his cock against her pussy, he puts it between her slightly spread thighs, and has her close them just a little bit, just enough so that every movement he makes will give him the friction that he needs. And, of course, he is still right up against her pussy, so she will feel him moving, and it will tease her that much more, until she is absolutely desperate to have him inside of her again.
On second thought, maybe he is still pushing her limits, but honestly, when he thinks about it like that, it is hard to come up with something that would not fall into that category, because she can get turned on from anything and everything that he does to her. Absolutely pathetic, in every way imaginable, and as he begins jerking his hips, slowly to start, he mutters something to himself about it.
“What was that, sir?” she asks, her voice still a little strained, still a little breathless.
“Nothing you need to concern yourself with, nosy girl,” he chides her. “Just mind your business, and do your job properly.”
“My apologies, father.”
At least she knows her place, he reminds himself as he starts to move his hips faster, her perfect thighs rubbing against his cock, causing his breath to hitch in his throat. There are so many different ways that he can use her body, and this experiment grants him all the energy he needs to completely exhaust those options, until he is finally satisfied with her, and until it has finally worn off.
He knows that, even though it feels like it has not been long, he is already working his way towards his fifth orgasm, and that they have been at this for a while, with time feeling as if it passes a bit more quickly, he is so distracted by all of this. If they have been at this for a while, it might not be long before Nemu actually does start to complain about something, something that she can’t help at all.
But for now, she manages to maintain her good behavior, letting him use her perfect thighs to work himself closer and closer to that climax. She remains still, not even squirming for him as he jerks forward, biting his lip and moaning out. After this, he already knows what he wants next, and after that, and after that, the idea coming to him so easily as he lets his increased libido drive him absolutely insane.
When he finally comes from this, it does nothing to relieve his appetite, and instead leaves him feeling that much more needy, ready to get onto the next part. He gasps out, “That’s five now, give me a moment to make a few notes, and then be ready to serve again.”
“Yes, father.”
He stumbles away from her, finding it hard to tear himself away even to make the notes he needs to, but if he keeps things going without writing anything down, he is going to end up forgetting things. His thoughts are already getting all jumbled up, and he needs to make sure that every bit of relevant data is properly recorded. Finally satisfied, he returns to her, telling her what he wants her to do to him without a hint of shame.
It is far from the first time that he has made his creation do such things for him; he can think of nothing that he would want from her that they have not already done, and bending over the table so that she can finger him is nothing new at all. Her expression remains blank, almost clinical, as she begins to work a finger into his ass, and were it not for the way her cheeks flush in excitement, it would seem as if she were completely unaffected by all of this.
The same can’t be said for Mayuri, not at this point. Even if he wanted to show restraint, even if he didn’t want to give her the satisfaction of moaning for her every touch, he is so riled up now, so sensitive that he can’t help it. He is glad that he had the foresight not to bother with making her do his makeup today, because they would both be a mess right now as he sweats and pants, making it all into a waste of time that they both could have spent on this experiment. Far better that they have that time to spend just like this.
Nemu has a delicate touch, and she is two fingers deep in him when he calls out for her to switch to the second stage, a phrase that she understands perfectly, from experience. If they had the time, if he had the patience, then he might want to test just how many fingers she can manage when he is this aroused, and once again, he has to remind himself to make a note of it for next time. But right now, he is more eager for something else, so eager for it that he barely notices anything else.
He barely notices the way that she has begun to fidget, which must mean that it is getting really bad. Nemu only shows signs, even slight signs like this, when she is absolutely bursting, and they have been at this for a while. She will not mention her need to relieve herself, no matter how hard he pushes her, and he looks forward to the moment she loses control, all because he has drawn things out for much too long, making her assist in this prolonged experiment, never giving her a single break.
Of course, he could switch to masturbating at any point, but touching himself is much like putting on his makeup; he was fine with doing it when Nemu did not exist, but now that he has her, what’s the point of putting in that effort himself?
She kneels down further, using her hands to spread him open that she can get straight to the heart of the matter, all of her previous practice making her absolutely amazing at eating his ass. Another bit of praise he won’t ever give her, and those just keep on piling up, but he has raised her well, with such a wide variety of skills that she can use for his purposes, all to make sure that he is content and satisfied, and that he never has to worry about trivial matters, fit for an assistant like her, when he could be focusing on something so much more important.
Working her tongue inside of him, she moans softly, or perhaps that is a whimper of pain. She must be getting close to her limit by now, needing to piss so badly that it will continue to weigh on her until she can’t hold back anymore. The two of them have run plenty of experiments regarding her bladder capacity in the past, and he knows her limits just as well as she does. He also knows how much he loves it whenever she loses control at last, losing her composure much like she does whenever he is able to make her come for him.
Though he still has not managed to completely connect the inherent eroticism of desperation to more “common” sexual stimulation, he has a feeling that he is just a few loose ends away from a real breakthrough. Perhaps this experiment will yield more results for that as well, but he’s getting ahead of himself, and on the verge of coming just from the way his daughter tongues his asshole.
Fuck, he must be really far gone now, thinking of her as his daughter because he is letting his focus slip so much, and he can’t hold back anymore, so there is no point in trying, and he does not mind the distraction, letting himself forget that little slip up as he comes for her, crying out, “That’s six,” as he does.
As he catches his breath, he strains to listen to her, listening to the way that she is softly whimpering now. Yes, she must be close to losing control if she can’t even keep quiet about it, and if that is the case, then he’s going to have to take a break to torment her a bit. Besides, it isn’t as if he couldn’t use that sort of break right now, and the only reason he has not paid his own bladder any mind is because of this damn persistent erection, and his desire to keep the experiment going with as few interruptions as possible.
“On your back,” he orders, as he gets back to his feet. Nemu tries her best to lay still on the floor, but it is impossible for her to hold still right now, and no matter how hard she tries, there are always slight twitches, a fidget here and there; her thighs pressed together, her legs trembling, and he looks down at her with a wicked smile on his face.
“Is that really the best you can do? I thought you had more endurance than that,” he scolds her. That isn’t actually true, because he is entirely aware of her limitations, and she has actually done a good job with trying to conceal it. Her endurance must be improving, but even his desire to study her can’t win out against his sadistic side right now. Looking at her, laying on her back, squirming under his gaze as she fights her body’s most basic urges, he just wants to hurt her, to humiliate her, to make her piss herself, rather than waiting for it to happen naturally.
He lifts his foot and brings it down on her stomach slowly, applying just a little bit of pressure. “You can’t hold it like this, can you, Nemu?” he asks. She shakes her head, and he says, “I expect you to answer me when I ask you a question.” Sometimes, he tells her not to bother wasting her breath on speaking when a simple gesture will do just fine, and then there are times like this, when he demands that she speak. He can’t really say that he blames her for not being able to keep up with what he means, whenever he asks her those sorts of question.
“I won’t be able to hold it like this, father,” she says, and there is a slight whine to her voice, something that he rarely gets to hear from her. He applies even more pressure, just to make her cry out, a spurt of piss spraying out of her as she briefly loses control, just barely able to regain it.
Mayuri clicks his tongue and says, “That’s disgusting, absolutely pathetic. You’re so weak, you know that? I don’t know why I still bother with you, when it’s clear that you’re a failure in every regard. Well, what are you waiting for? Do I have to keep stepping on you, or are you going to go ahead and prove my point by pissing yourself?”
She must know that he doesn’t mean it when he calls her a failure, must know that he really wouldn’t bother with her if he believed that. Either way, she takes at least some of what he says to heart- either that, or the pressure that he is applying with his foot has finally become too much for her to endure, because she finally gives in, a soft whimper slipping past her lips as she begins to piss herself. In no time at all, there is a puddle spreading around her where she lays on the floor, and he withdraws his foot, looking down at her with disappointment written all over his face, an act to hide the sadistic thrill he actually gets from this.
The best, or worst, part of it all is how much he knows this turns Nemu on. No matter how disappointed he is in her, or because he is disappointed in her, she gets so damn horny, but at the very least, she knows when this is and is not appropriate. After all, if she got turned on every time he showed any signs of disappointment, then she would never have any motivation to grow or improve. She has the good sense to know when it is put on for her sexual pleasure, and when he actually needs her to improve what she has done.
“Do not get up,” he snaps, when she starts to move. Immediately, she is flat on her back again, as he says, “Since you’re already a mess, I might as well go ahead…after all, you’re going to have to get cleaned up either way.” Her eyes widen as the meaning of his words finally starts to set in, and as he stands over her, he takes a few deep breaths, doing what he can to relax himself.
His bladder is absolutely aching right now, and watching Nemu piss herself certainly did not help matters, so even though his arousal is still at its peak, he is just briefly able to calm things down enough, at least enough so that he can comfortably piss on his daughter. Ah, there he goes again; he’s going to have to stop that, before it becomes a habit.
Nemu lays flat on her back, face flushed, eyes a bit more lively than usual, as he pisses on her, taking care to aim all over her body, until finally settling on her face, wanting to finish here, wanting to properly degrade her. Of course, she parts her lips for him, and keeps her mouth wide open to catch whatever she can.
“So filthy,” he groans, “I don’t even know what to say.” She drinks down everything that he allows her to, but he never makes it easy for her, never aims specifically for her mouth, until his stream has slowly trickled to a stop, and he is able to let out a soft sigh, content.
“I’m not sure if any of that is relevant, but I’m going to make note of it all, so sit up and stay right where you are.” Once he has it all written down, he returns to her, and she is on her knees, just like he ordered her to be, acting as if she is oblivious to the fact that she is completely soaked in piss right now. Internally, she is probably overjoyed about that, if he had to make a guess.
When he is standing in front of her again, he only has to say, “Chest,” for her to know what he means, and to get right to it. In every way, her body is perfect, exactly what he would have wanted from her, proving just how perfect her development has been. Her breasts are no exception to that rule, and he loves the way it feels, having her squeezing his cock between them, and the way she slowly starts to move them up and down, creating friction as she goes.
This is just as useless to her as fucking her thighs is, but he wants to do this now, while she is still a little wet all over, and he would not have been able to make it through this experiment without doing this at least once. He loves to indulge in every part of her body, and once she has started moving at a much quicker pace, he is able to lose himself in it, knowing that it will not be long before he comes again.
Climax number six? Wait, no, he thinks it might be seven, and he hopes that his notes are not as jumbled as his thoughts. Whatever the case, he is going to make a mess of her face once again, and though she has fallen into a quick rhythm, that is not nearly enough for Mayuri. He is soon thrusting even faster than she can keep up with, fucking his daughter’s perfect tits, cursing himself for thinking of her as his daughter yet again, and then forgetting all of that as his seventh orgasm overtakes him, and he tries to cry out that number, but just ends up moaning helplessly, wondering just how much more of this his body will be able to endure.
Predictably, Nemu parts her lips so that she can try and taste it as he comes, and he doesn’t even feel the need to comment anymore. Going at it for this long, he feels like he is just driving the point into the ground, reminding her of how filthy, disgusting, depraved, and pathetic she is. He just pulls back with a sigh, ready to catch his breath and keep going. He rather likes that he can just keep going, full speed ahead, and wants to keep chasing this same high, over and over again until he finally burns out, with still no real idea of when that might be.
Before long, he is sitting on a chair, inviting Nemu onto his lap, so that he can fuck her like this. She takes her position right on top of him, facing away with her legs spread behind her on either side of him, and he puts his lips hear her ear as he says, “You can take the lead on this one. How do you like that, you insatiable slut? You can fuck me as fast or as slow as you want to, while I just sit back and take it, but you need to make sure you actually get me off, or else you’re wasting my time.”
“Yes, father, I understand,” she replies. He knows that he does not actually have anything to worry about there, because there is no doubt in his mind that she will do just as he says. Even Nemu isn’t so useless that she could fail at something like this; actually, this is probably the thing that she is the least useless at, the one thing that she always gets right, no matter what.
Not only that, but she is particularly good at riding him, and with her insatiable appetite, he knows that she can keep this up for a while. All he has to do is sit back and hold onto her while she starts riding him, bouncing up and down on his lap with a steady rhythm, her breath coming out in soft, repetitive moans. Nemu can be a good girl when she puts her mind to it, at least when it’s something as self-serving as this. Really, this is nothing worth praising her for, so he does not even need to add it to the list of praise he’ll never give her.
Lazily, he begins to thrust into her after a little while, even though he told her that she could take the lead. It is hard to resist when she’s so perfectly tight around him, even after going at it for this long, and he will never admit how much he loves the way she moans for him every time she feels his cock moving inside of her. They are both getting so swept away in it that neither are paying attention to much of anything, and one of Mayuri’s hands drift up to pinch one of her nipples, while the other remains on her hip, with his lips against her neck, biting and licking at her skin, listening to the way this makes her whimper.
That is the scene that Akon walks in on, with neither of them noticing his sudden appearance until he clears his throat and says, “Sorry, am I interrupting something?”
Mayuri sighs, pulling his face away from Nemu’s neck. “You have eyes, don’t you? The two of us happen to be in the middle of a very important experiment, so you’d better have a good reason for interrupting me.”
“It isn’t urgent,” is all Akon has to say for himself, which is so predictable.
Sighing again, Mayuri says, “Then just stay right there. If you’re going to get in the way, you might as well make yourself useful. Actually, no, come closer.” Akon does as he is told, not with the same blind devotion that Nemu does, but he at least knows when it is easier to obey than disobey, and once he is close enough, Mayuri nudges Nemu, working so that the two of them can get up at the same time, all without him ever pulling out of her.
She is so dazed that it is difficult to get her to move with him, but then he has her bent over, fucking her from behind, right in front of Akon. Who is still just staring at the two of them like an idiot, like he honestly doesn’t know what is expected of him right now.
“Well, get it out already, how’s Nemu supposed to suck you off like this?” he snaps, and Akon finally figures things out- so damn slow, it’s a wonder he can handle any of his duties. He seems confused by all of this, but goes along with things because he knows his place, in an entirely different manner from how Nemu knows her place. She knows her place well enough that she does not even need to wait for orders, and does not even question things, before she has her lips wrapped around Akon’s cock, earning a strangled moan from him.
“I’ve been wanting to see how she handles something like this,” is the only explanation he gives before he gets back into the spirit of fucking her, and Nemu is rocked back and forth between the two of them, with Akon falling into the rhythm reflexively, going along with however his captain may lead him.
“You’re testing that endurance drug?” he asks after a moment, his voice a bit strained, showing how difficult it is for him to multitask, at least when one of those tasks involves having his lieutenant blow him.
“Obviously,” Mayuri replies, his voice a bit more even, though not by much. If it weren’t for that drug, and how many rounds he has had to go so far, he would be completely stable right now, even while balls deep in Nemu, but as things are, he is not operating at his best right now. And even that is better than Akon, which really says a lot about how pathetic he is, and how Mayuri has all the patience in the world, forced to deal with so many inferior specimens on a daily basis.
“Then what does this have to do with anything?”
The question hangs in the air for a moment, and Mayuri understands what it means, but still does not answer. Akon is obviously asking how Nemu sucking his cock has anything to do with testing Mayuri’s increased sexual stamina when the drug is administered, and the short answer is that it doesn’t have a blessed thing to do with it, but he doesn’t feel like he owes him that obvious an explanation. He never said that he wanted Akon to help with that particular experiment when he asked him to help out, and he really has to wonder about his powers of observation.
Mayuri simply clicks his tongue, looking off to the side, his disdain only fading as his quick pace starts to catch up to him. This is all that he can take right now, and he hilts himself within Nemu with another groan, giving into what he believes is his eighth orgasm, if his count is still correct. He needs to make even more detailed notes now, and to check over them, to make sure that he has not left anything important out, before he gets into another round with her.
Nemu is still dutifully sucking Akon’s cock even as Mayuri pulls out of her, because she was never asked to stop. Likewise, Akon seems to still be holding on, not stopping because he hasn’t been told to, but not letting himself come either, because he isn’t sure if he is allowed to. Since he’s already here, he might as well keep being useful, and Mayuri says, “I’m going to take a break to review my notes, but it won’t last long, so it shouldn’t interfere with mt results. Once you two are done with that, keep each other busy for as long as you need to. Like I said, I’ll be back and ready for more soon.”
It is almost hard to concentrate on his notes with the way Nemu moans, making his cock twitch, reminding him of just how horny he still is, the drug keeping him from knowing any sort of satisfaction. Once Akon came down her throat, it seems he decided to return the favor with even more oral, and normally, Mayuri would be able to focus through something like that. Right now, though, he can barely keep his thoughts straight while his third seat eats out his lieutenant, just a few feet away.
Even so, he perseveres, making sure that he checks over every last detail before he finally goes back to join them, and just in time for Nemu to be sent into a screaming orgasm, on top of that. Akon looks up to him, perhaps about to ask if that is all he needs him for, but Mayuri stops him before he can let out such a stupid question.
“Since you’re so intent on aiding the main experiment, you’ll be fucking me next,” he says simply, before ordering Nemu to his feet, his daughter- creation, assistant, lieutenant, whatever- so shaky and dazed that she can barely get the job done. Even so, she is quick and efficient, getting both of them ready for each other, as Mayuri bends over the exam table, and Akon never voices any questions or concerns that he might have, because he is at least smart enough to know better than that.
“I don’t care if you finish or not,” Mayuri says, which is partially a means of giving permission, partially a means of making sure Akon know he truly does not care. “The only thing that matters is you do not stop until I reach my climax. If you can’t keep it up after that, then we’re done here.”
He says it so dismissively, but Akon is used to that, used to only being needed when he can be useful, and essentially being forgotten right after. The two of them have never done anything like this before, but Mayuri is shameless enough to ask for it so openly, and is not the least bit surprised that Akon is still willing to go along with it, to do his part and fulfill whatever he is needed to do, and then go back to business as usual. If he had to describe it, Mayuri is fairly certain that he would say it is far from the strangest thing he has ever had to do in this lab.
But none of that matters as he starts to push inside of his captain, breath coming out in soft, short gasps. Mayuri is immediately caught up in this new sensation, so much more intense than anything Nemu has been able to do to him so far. There are just some things that he can only get by going outside of the norm, though he supposes that, next time, he might be able to get Nemu some sort of toy, so that she can continue to do his bidding. But for now, this is just fine, because it gives Akon a chance to truly feel needed.
“Is that alright?” he asks in a low, breathless voice, once he has managed to fit his cock completely inside of Mayuri.
Looking back at him from over his shoulder, he replies, “What are you wasting time for? Don’t you think I would have told you if there were a problem?” Even as breathless as he is right now, Mayuri still finds it in him to scold him, and Akon does not ask anymore stupid questions after that having learned his lesson. With that, he actually begins to move, starting with a slow pace, always waiting an appropriate amount of time before he starts to speed things up.
Every time, he is waiting to make sure that Mayuri is not ready to scold him again, so at least he learned his lesson about wasting time on questions. Soon enough, he has found a quick pace that has Mayuri moaning out for him, unable to hold back as he lets himself get carried away in it all. This is what he needed, the missing piece to really make this experiment complete, and he does not care if variety is not required to carry this out, nor does he care that doing the same repetitive action might have yielded more concrete, scientific results.
This is what he wants, and he is so damn horny right now that he is not going to settle for anything less than what he wants. Akon is getting carried away as well, but Mayuri already knows that he is going to outlast him, that there is no way that he can last long like this, already aching for that release, gasping and moaning out, so shameless, and honestly rather pathetic, but he would never describe himself in that way, not like the easy way he throws the word around where Nemu is concerned.
She is watching the two of them right now, probably still reeling from her reward from Akon, waiting for her chance to be needed again. He hopes she isn’t too tired by now, because he is far from done, and even as he is sent over the edge, voice breaking as he cries out, so far gone that he can’t ask himself what number that is, he knows that it will not be the last, that he will be right back to this, as soon as he can manage.
But Akon does not last all that much longer than him, coming inside of him suddenly, and with a deep moan. He doesn’t have the sort of stamina that Nemu does, that much is for certain, and he never would have been able to keep up for an experiment like this. At least he was able to do his part, though, and that more than makes up for nearly interrupting and derailing them with something unimportant, something that Mayuri still doesn’t want to hear about, not until the experiment is over.
Akon is shaking a bit as he pulls out, still overwhelmed, and Mayuri comments, “Well, you did your part. You can be on your way now. Don’t forget whatever it was that you were doing to tell me, and try to have better timing next time.”
“Right,” he says with a nod, simply accepting it all, knowing better than to try and argue anything right now. “Thank you, I hope I was able to help with the experiment.”
“It’s still underway, so if you’re done, then please let us get back to it,” is all he has to say to that, sending Akon on his way at last. He looks over to Nemu then, still panting where Akon left her, cheeks flushed as she gazes at Mayuri. Right now, he can only imagine how flushed and disheveled he must look to her, after hours of nearly nonstop fucking, but there is still that same adoration in her eyes.
It doesn’t matter how he looks, she is always going to look at him like that. She bites her lip, making it clear that she is so turned on right now she can barely stand it, and she really is lucky that he’s finally exposed himself to a substance that makes it possible for him to keep up with her ridiculous appetite. Not that that has anything to do with why he wanted to test it out like this.
“What are you staring at, Nemu? I didn’t say you could take this long of a break. Get over here and get back to work,” he orders, and she is more than eager to do exactly as he says.