A Nereid's Deal

Castelilise had known what she had wanted to do for awhile now. She was going to give Felix a deal, one that he couldn't refuse because of the rules, and one that'd teach him what her life was like. How frustrating it was to be confined to a harem because of how monstrous her libido was, and how maybe she should be shared. That this wouldn't be NTR, because her objective wasn't to humiliate him or replace him, but simply to quench her thirst.

After she set up the slide in the pool area, and ate lunch, Castelilise swam to the master suite. It was a quick swim, as the demon that was their host evidently wanted to facilitate her access to the master. It was of a piece with how she knew Felix's fantasies better than he did, and their date was going to be the first day she was going to exploit that knowledge to its maximum possible effect.

"Felix, open up!" Castelilise yelled in excitement once she got to the master suite's door.

Felix opened the doors shortly afterwards, surprised to see the nereid so early. Before he could say anything, Castelilise burst into the room, and put her arms around Felix's neck. "Felix, I'm going to make you a deal."

The closing of the master suite doors behind her reinforced the impression that Felix was trapped with Castelilise for the foreseeable future, even before the beginning of their date. "Okay..." Felix said, cautious about where this was going.

"We're going to be in a free use relationship," Castelilise continued, pausing to kiss Felix's neck. "Whenever you want to fuck me, just do it. You want to fuck my ass, just grab me and put your dick in my asshole. However..."

The nereid trailed off while circling Felix, emphasizing . "... the price for this freedom is I get to do the same to you. Whenever I see you, I get to fuck you whenever I want and however I want."

"I can't refuse this deal can I?" Felix asked, scared and aroused at the same time.

The nereid grinned while saying, "Nope. Honestly I'm just giving you the same rights that I already have. Besides, you'll love this, as you're into free use, and very much into women using your body for carnal purposes."

With that last statement Castelilise drew Felix into a kiss. A deep, lustful french kiss that gave a hint of what the day was going to be like for him. The nereid dragged him into the canal, and said, "We'll stop for dinner, and I'll let you rest, as I don't think the demon would want you to drown."

Castelilise then dove under the water, and lived up to her promise to give Felix a blowjob. Knowing Felix's desires, she made sure to trap him against the wall, and sucked his dick with overwhelming enthusiasm. She didn't deep throat him, he wasn't going to get that unless he asked for it or fucked her face as part of their agreement, but she still gave him a unique experience. It wasn't everyday one could get a blowjob from a girl who was underwater, after all. It didn't take long for her, despite technically having no practice, to get him to uncontrollable cum in her mouth.

Blew Master: 10 VP

"Now," Castelilise announced while rising from the water. "I'd have you eat me out, but alas, it'd be tricky for you to do that underwater.

"How... you..." Felix struggled to get out words, overwhelmed by the orgasm he got from cumming in the nereid's mouth.

"Felix, you wound me," Castelilise gently dragged Felix away from the wall she had sucked him off against. "I'm a nereid, and that includes a level of lust that makes me a quick learner."

"I'll let you make up to me," Castelilise whispered into Felix's ear while she wrapped her legs around his hips, "because I'm going to fuck you until you cry. I'm going to do that not to torment you, but because the demon made me this way for you. You want to be my fucktoy, and you want me to treat you the way most women treat their favorite vibrator. Cherished, but ultimately a toy for pleasure..."

Vizrokoth was trying to relax when an adorable ghost in a giant hat showed up. "Mail!"

"Oh, poor thing, you must have had a hard time because of how I locked down the set from external interference," Vizrokoth said while going over to Lyn. "Let me take this so you can get back unscatched."

The demon took the letter, and patted Lyn in a way that safely teleported her back to her home dimension, saving her from what Vizrokoth feared could be a difficult trip.

"Dear Vizrokoth

It is wonderful to hear from another host who understands that gentle guidance can’t always get the ball rolling the way we want. I thank you for your advice and look forward to any future correspondence.

Regards.

-Jocelyn."

An excellent letter, and one that Vizrokoth wish she had gotten to previously, but she did have to protect her realm from foreign intrusions. She wasn't quite sure that Jocelyn understood the need to be willing to dominate the master to get things moving, but she was sure that the next time the host had fanmail, the demon could remind her if she hadn't gotten the lesson...

Kei Winters and Jamina spent the rest of their waking hours preparing for the challenge. Rather than compete with each other, they decided to go over mathematics, specifically of the kind that could matter when measuring the location one was in. Without the tension of deciding who was the better teacher, this managed to actually get somewhere. At some point in the discussion Jamina had a realization, and one that brought said discussion to a screeching halt.

"Wait, we're in a world of magic," Jamina said. "More than that, the challenge is going to be in our dreams, and in an ever changing world. How much can any of this work?"

"An astute observation," Kei Winters noted. "Mathematics is fundamentally based on logic, but dreams are not illogical, and magic allows one to twist reality like it's a dream. How do you think we should deal with that?"

Jamina gathered herself before replying. "We need to make sure we have a good relationship with the rest of the group, insofar as we can before tonight. Although not Cammy because..."

"Her role is different," Kei Winters finished. "I suspect logic can still play a role, but we'll need to be careful on when and where to apply it. With that noted, there are two contestants we most need to be in the good graces of."

"Why just two?" Jamina asked. "I get that time is limited but three contestants is not a majority when it comes to group decisions."

"Ah, but if Cammy is playing a different role, it may be half," Kei Winters countered. "As for who, I choose Hailey and Noah, because I think both will do well. Hailey has every incentive to prepare better for this contest than the last one, and isn't a contest that necessarily punishes her for being a normal human. Meanwhile, Noah will have a challenge that plays to her strengths, and she's someone who managed to eek out third place in a contest that primarily played to her biggest weakness in speed."

Jamina had to admit that Kei Winters had a point. "What do you think of the rest?"

"Janessa Smith is going to do terribly, as she has not only angered Felix and Cammy, but also is too used to being in a position that grants them authority," Kei Winters said with a voice dripping with contempt. "Besides, I have your memories, and I'm pretty sure they did things to anger Hailey, or even Noah. Meanwhile, I shouldn't even need to go over why Nox is going to do terribly in a contest requiring her to cooperate with people she used to bully, and Z is an outsider whose done nothing to ingratiate herself to everyone else."

"What about the nereid?" Jamina asked.

"I've got a decent relationship with her," Kei Winters said. "We can talk to her if we have time, but there are only a few hours left before bed, and we need to take the best possible advantage of them..."

Felix had heard before that sex underwater was actually kind of terrible because it washed away a woman's natural wetness. That idea evidently didn't apply to nereids, as Castelilise cummed all over his dick for hours upon hours of a relentless, lust filled haze. He was thankful that nereids could cum from penetration because he didn't want to drown trying to eat her out. It also made him thankful for being far more fit than a normal man, as this nereid was not the type to accept excuses like, "I'm tired," or, "I'm only human," for not getting sexual pleasure. She wasn't the only one cumming, he had cum so many times that he felt more sore from his dick than he ever had in his life, and yet... part of him wanted more. Part of him wanted to keep going, despite how often it seemed like he couldn't breath, or her pussy gripped his dick so tight that it hurt, because the pleasure was just as overwhelming as the pain. He didn't have to think about anything except the present while he was with Castelilise, and that was something anyone could be addicted to.

Sex With Master: 15 VP

"Alright, lets get dinner," Castelilise said. "You've been a good boy, insofar as you've understood your duties as a fucktoy."

For a different person, such language would be a turn off, or cause them to complain about being objectified. Felix enjoyed it, and didn't dare claim otherwise to someone who knew his own sexual fantasies better than he did. He also enjoyed being dragged by Castelilise to dinner through the canal system, and despite how sore he was, enjoyed how she had used him like a toy. Vizrokoth had clearly crafted the nereid's second transformation for moments like this one, where her knowledge would strip away his defenses in her presence, along with the rules of the season.

"So Felix, what did you think of that?" Castelilise asked as they arrived at the mess hall. "Was that your fantasy fulfilled?"

At first, Felix didn't say anything, and instead got a big plate of pasta to try to fill up after the intense fuck session. But eventually, he started to find his words. "That was... I would've had my pelvis shattered had we done that before Harem Hotel."

"Yes," Castelilise said while idly eating some fruit. "But you would've loved every minute of it. Every pulse pounding second where I take from you what I wanted. So what's the issue?"

When she became a nereid, Castelilise had gained more than a new species and a new name. Felix realized she also had a radically different worldview that prioritized the immediate, the now, over either the past or future. The sheer intensity with which she took what she wanted was both a fantasy come true for him, but also a terrifying realization of what it really meant to be at the mercy of someone as lustful as Casteilise was.

"Having a kink for something doesn't mean I love every aspect of it," Felix said while grabbing some fried shrimp for additional protein, and a bowl of ice cream for dessert. "I'm not supposed to be so..."

That caused Castelilise to be angry in a way Felix didn't anticipate at all. "Oh, because you're a man you aren't supposed to enjoy being ****? Are you only suppose to enjoy being the ****? Fuck that shit, you should know better."

The nereid stormed out of the canal and ran up to Felix before he try responding to her. Castelilise grabbed him by the chin, so that he had to look in her eyes. "Look me in the eyes, and listen very carefully. Your fetishes don't make you pathetic Felix, the only thing that does that is being ashamed of them. Understand?"

"But... I enjoyed you using me like a toy, and besides," Felix suddenly gained confidence with that last word enough to get out of the nereid's grasp, "I shouldn't enjoy any of this! I shouldn't enjoy being **** or being a ****, because..."

That caused Casteilise to sigh. "So that's what this is about. You think that because you enjoy being ****, you're betraying your dear mother."

"Of course," Felix said. "She was abused by Austin, and... I shouldn't enjoy being in that position. I shouldn't enjoy being an object the way she was."

"It's not the same Felix," Castelilise said as she guided him away from the buffet table and back into the canal. "Your mother was betrayed by society. All of its laws, customs, and the rest were useless when it most mattered, or worse, were weaponized to subject your mother to something she didn't enjoy, much less agree to."

"**** is wr-" Felix was cutoff, as Castelilise blocked his mouth with her hand, and then plunged them both into the canal.

When Felix broke back above the water, Castelilise was there to, once again, pin him to the canal wall. "What matters is whether you enjoyed it Felix."

"Nonsense, it can't-" Felix was cutoff again, this time by a kiss.

That kiss lead to the nereid enveloping Felix again. Shoving him against a wall again, and cutting off his escape again. He thought he knew where this was going, but then Castelilise stopped, and just gripped his dick, which despite his massive level of soreness, had gotten hard again. His body was ready to go another round, despite how sore he was, and despite that she had treated him like a toy.

"See, you enjoy it," Castelilise stared into Felix's eyes while saying that. "And while we're on Harem Hotel, the only that matters is whether you enjoy something. Not whether society deems it acceptable, whether it would be okay happening to someone else, whether it's a double standard, or even whether you wanted it to happen. The only thing that matters is whether your body enjoys what is happening to you. Understand?"

The question silenced Felix as the point sank in. Because Castelilise knew every single fetish he had, she always knew what she could get away with under the rules Vizrokoth had set out. It didn't matter that he was the master, in practice, she could do whatever she wanted as long as he cummed from it, or even just got turned on. Seeing that turmoil play out, she brought a hand to his face.

" You cannot change what happened to your mother, anymore than I can change all the horrible things I did as a human," Kei Winters said. "So why not enjoy the gifts that the host provided us?"

"... You're just like Kei Winters," Felix said while reminiscing. "She keeps telling me that the key to us getting out of here is for me to do what I want to do anyway. But..."

"You feel guilty about that as well, given the past she was given by the demon," The nereid continued. "Again, why does it matter? Those memories of hers aren't real, and if they become real... well, if she's part of your harem, she can't hurt anyone else again. She won't be able to touch another man without your permission, much less another teenage boy. That's something I'm very aware of."

The emphasis on the last point drew Felix's attention. "Is that what you want?"

"Surprisingly perceptive Felix," Castelilise said. "I don't want to be bound by anything except nature's law. And in nature, the only thing that matters is whether you have offspring. Not whether you have them with one or more partners, not who you raise those offspring with, or even whether you yourself live that long after children. It all boils down to passing on your genes to the next generation. That one rule manages to create a system far too complex for anyone to ever understand. Society tries to impose order and certainty on that, but all it accomplishes is polluting the air and complicating relationships to no purpose. Endless rules like that sex must be bound to one person at a time, that it can only be in a romantic relationship, and on and on, all of which are to exert control."

"So you're a tree hugging hippie on top of everything else?" Felix asked. "I'm a bit too attached to vaccines and air conditioning to-"

Once again he was cutoff by a kiss. "Technology is not the problem, just a symptom. The problem is your society Felix. Our world suffered because it lacked creatures like the one I am, or Z, to give nature a fighting chance. But, lets table that discussion for later. The same goes for the discussion of whether you share me, that is for another night. Tonight is about showing you what it means to be in a free use relationship with me, and what it means for a human to be at the mercy of a nereid..."