"Alright, let's see what a Level 10 Sex Dungeon is like," Roxy said.

"Should we really be delving Sex Dungeons when we plan to be taking over a kingdom?" Nicky asked.

"One, you told your mom that you're still busy with Guild life and would prefer to avoid having serious conversations and making plans until after you've hit a soft level cap," Roxy said. "She said that sounded perfectly reasonable and commended you on your responsibility, as well as your rapid progress, but admonished you against the possibility of getting lazy or soft. Therefore, we have pretty much as long as we need, depending on how long your mom thinks it should take you to hit a soft level cap without getting soft or lazy, give or take some time."

"Mmmn, fair," Nicky admitted.

"Two, right in that other room, my Normal-type Adjustable Dungeon Gate is still being inspected. The dial is stuck to 10 for the inspection, to speed things along and ensure they can take more readings more safely, but a Level 10 Dungeon still takes two hours to delve for a team of Level 14s, which is two per contracted workday due to Guild regs, and I'm not paying extra to have them expedite the process with more teams. They are, therefore, going to take another few days to get it Silver Certified, which is really all we need to use it in-house."

"Then why did you get the Sex Dungeon Gate Gold Certified?" Akane asked.

"The inspector said that my circumstances lined up such that I couldn't, by the regulations, have a Silver Certification on this Gate," Roxy said. "The Gate still only needed ten delves to get Gold, though, so it still got done in a day, and I wasn't that bothered. Still wrote into the Guild about it though, and occasionally get some correspondence about the debate on how to handle it."

"Really?" Akane asked. "Why on earth... Why is it a debate?"

"So," Roxy said. "Silver Certification requires one tenth the number of test delves to achieve as Gold Certification. By default, that's a hundred for Silver and a thousand for Gold. Historically, though, Dungeon Masters who were Level 10 or higher only needed a hundred test delves to get certified- which means that anything I build only needs a hundred delves to get Gold Certified, or ten delves to get Silver Certified. Well, then there comes another fact: Sex Dungeons are unusually safe and stable for Dungeons, as are Training Dungeons and Toy Dungeons. All of those also historically only needed a hundred delves for certification- which is, you might note, a tenth of what's needed for default Gold Certification."

"And so a Level 10 or higher Dungeon Master making a Sex Dungeon only needs ten delves to get Gold Certified... or one delve to get Silver Certified," Lisa said.

"Exactly! And there are currently two sides to this ongoing arguments," Roxy said. "One side says that you can't gather meaningful information about a dungeon's reliability from just one delve. The other side says you can't really get that from just ten delves either, and these reduced requirements are a sign of well-earned trust, and the one delve from Silver Certification is sufficient to see that the Dungeon Master isn't simply lying about what their Dungeon Gate is."

"I see," Akane said.

"Didn't you say you were the only living Dungeon Master above Level 10?" Nicky asked.

"There might be another one who doesn't live in Dorn or simply isn't in the Guild?" Roxy hazarded. "But yeah, I'm the only one we know of, and so I just keep stating, on the record, that as the only Dungeon Master this rules change would apply to at the moment, I cannot in good faith render my opinion on the matter or advocate for either side. And until I decide to build a Toy Dungeon or a Training Dungeon, which people actually care about, instead of a Sex Dungeon, this argument is going to stay pretty low-stakes and low-importance. Nobody gives a fuck about the fuck dungeons. That's why I'm pretty sure this is the only Dungeon Gate in the world that makes Sex Dungeons of a level higher than, like, four."

"Speaking of Sex Dungeons," Akane said, strolling up to the Gate. "Let's see what a Level 10 Sex Dungeon is like." She hit the button to activate it, draining mana from the reservoir in Roxy's house- she didn't drink all those mana potions herself, after all. Instead, she had a powerful and efficient self-built mana generator, which turned the potions directly into usable mana- which, having been built by a Level 13 Mystic Artificer, was actually more efficient than Roxy drinking the potions herself, not just capable of handling larger volumes- before storing it in a mana reservoirs, which, again, had been constructed by Roxy herself, and from there connected to everything in the house that used mana but which Roxy did not want to power with her own mana pool.

The Dungeon Gate filled in with a door, which then opened, allowing the party entrance to their first- and quite possibly last- Level 10 Sex Dungeon.

"So," Akane said, stopping before the first door. "Provided we keep up our pace of one new level of Sex Dungeon per day... four days from now, we delve a Level 14 Sex Dungeon, and then the day after that, our new Dungeon Gate will be Silver Certified, and we can start delving that."

"Mhm," Roxy said. "One delve in that, with the right party contract, will get you and Nicky up to Level 14 in your main classes, and also myself up to Level 14 in one of my non-Wizard classes. Probably Mystic Artificer first, because it needs it. After that, it'll boost any other classes we've picked up, which I'm aware may still be zero for you and Nicky."

"I haven't really committed to picking anything myself," Akane admitted. "I mean, yeah, delvers taking non-combat classes is how we got the economic boom, but I kind of don't care that much? Being a Wizard is enough intellectual stimulation for me. I wanna spend my time outside a Dungeon in full-on no-thoughts-head-empty mode, which used to involve a lot of lowest-common-denominator pulp fiction, and now involves getting fucked so hard I forget my own name, and also a lot of lowest-common-denominator pulp fiction."

"Any of it any good?" Roxy asked.

"...Define good," Akane said. "But also, no."

"Well, hell, that's fair," Roxy said. "Fuck knows I've wasted plenty of time on objectively bad media."

"Time you enjoyed wasting wasn't wasted," Nicky said serenely.

"You need to hear that more than Akane and I do."

"I'm trying to internalize it, every day," Nicky said.

"Can we maybe get on with the dungeon?" Lisa asked.

"Oh right, we're in a dungeon," Akane said, opening the first door and waltzing through without stopping to look, because, funnily enough, Sex Dungeons pretty much never did anything to you that you weren't okay with. They were Sex Dungeons after all, and sex without consent wasn't actually sex.

So when she immediately got caught in a trap laid by a tentacle monster, everyone was pretty confident she was enjoying herself.

"Oh, fuck yes," Akane said, before a tentacle went into her mouth.

There were, also, other reasons everyone was so confident, admittedly.

Akane hung there, mostly limp, the only effort she had to exert being the rhythmic squeezing of her throat, her pussy, and her ass. In return, she got the powerful, bone-deep carnal pleasure of being stretched and filled and fucked. It was divine.

And from the sidelines, Nicky and Lisa watched with eager interest, thinking 'god I wish that was me' and imagining how good it must feel to be used like that. Especially since the tentacle monster, perhaps noting how stretchy Akane was- thanks to an enchanted ring Roxy had made, inspired by a ring that had dropped in the Level 8 Dungeon- began to fill her holes with more and more tentacles, until the tentacle monster evidently ran out of tentacles, having to remove the tentacles holding her wrists and ankles to stuff inside her voluminous ass and pussy.

Roxy, meanwhile, was a bit interested, enjoying the sight of Akane's naked body jiggling as she got fucked, but the view from behind had never excited her that much, and Akane wasn't close enough to reach out and touch, let alone grab her tits. And as a stone top, the idea of being the one getting fucked simply was not an idea she entertained.

Akane continued to ride and squeeze and milk the tentacles like a champion, lasting a whole five minutes before all of the tentacles started to spasm, at the same time, the tentacle monster getting overloaded with pleasure and pumping Akane's greedy holes with buckets of seed.

This time, all that cum being pumped into her- enough to visibly swell the tentacles as it flowed through them- did in fact count as reasonably-pure cum, going straight into Roxy's cum gauge. Out of curiosity, Roxy decided to put some of that load towards giving Akane Succubus Level 2, just to see what it did.

Immediately, the tentacles swelled even further, and Akane milked even more cum from them, before, finally, the deluge slowed to a trickle, and Akane was grabbing and suckling at the tentacles in her throat to get every last drop, before the tentacle monster finally succeeded at withdrawing from her.

"Whoa," Akane said, turning to face everyone, her tits somehow still inside her 'clothing,' such as it was.

"You're a Level 2 Succubus, now," Roxy said, stepping through the door and noticing the distinctly withered-looking tentacle monster that made up the ceiling. "I take it you can milk cum out of people more efficiently, now?"

"I can make people cum really hard," Akane said. "I mean, I could do that already, my hole game is immaculate, but now I can do it even better! Oh, man, this Dungeon rocks!"

She turned around and set off again at a brisk pace.

"Watch out, there's another-" Lisa tried to warn Akane.

"Round two!" Akane declared as she got caught by another tentacle monster. "Try to last longer than the first guy!"

"There's six more in this hallway," Lisa said.

"And she's going to suck all of them dry," Nicky said, folding her arms and nodding approvingly. "God, I love her."

"She's pretty lovable, ain't she?" Roxy said, patting Nicky's shoulder. "Now... it took her five minutes to make the first monster cum. Let's say it takes five minutes for her to drain a monster, starting from the moment she finishes with the last one. That leaves us with thirty five minutes to kill."

"...Ah," Nicky said. "Yes, and... watching Akane get fucked is fun, but it isn't half an hour of fun."

"So, I'm gonna just..." Roxy pulled out her phone, popped a squat, and started playing some Tetris.

"I wish I had pockets," Nicky said as she retrieved her phone from her inventory.

"You have a belt," Lisa said, producing her own phone from within her cleavage- or, rather, from the front of her jumpsuit, where it touched a boob. Her rack wasn't big enough for its cleavage to hold her phone. "Your sword's already hanging from it. Put some pouches on it, too."

"Point," Nicky said. "Can you make some for me?"

"Yeah, I'll see what I have to work with," Lisa said. "You up for a rematch with my latest team?"

"Sure, why not," Nicky said.

"I'm mad," Akane complained, once again, as they approached the boss door. "I got fucked by eight tentacle monsters- Level 10 tentacle monsters, with me as a Level 2 Succubus, and I wore them out before they wore me out?! That's just poor service, it is."

"Akane, you fucked eight tentacle monsters to exhaustion," Roxy said. "You are a goddamn prodigy of bottoming. You also got a spell for summoning tentacle monsters to drop, which I've used to concoct a related spell that gives the caster some tentacles of their own. I'd say you should take pride in this and be happy."

"I don't wanna take pride, I wanna take cocks!" Akane whined.

"Then you can be patient and wait for your Incubus to cast the spell that gives her more cocks for you to take."

"Oooooh..."

Akane took point for the boss door, as it was once again her turn, and upon opening it, met eyes with a particularly sexy snakewoman, her body from the hips up being that of a particularly sexy woman, and her body from the hips down being that of a particularly large, thick, and long-bodied snake.

"Hello, slave," the snakewoman said, her eyes glowing green. "Stand beside your new mistress."

"Oh?" Nicky asked, following Akane in, and also getting hypnotized by the snakewoman's gaze, followed by Lisa.

Roxy sighed as she walked in, shaking her head.

"And one last slave to complete the set," the snakewoman said, as Roxy lifted her head and met her eyes. "Submit."

"No you," Roxy said, her enchanted glasses reflecting the snakewoman's magical gaze back upon her.

"...Hello, Master," the snakewoman said after a pause. "I hope you aren't upset about what I did to your other slaves."

"Eh, I've learned that they're into mind control in a sexual way," Roxy said, shrugging. "What do you drop, anyhow?"

"A pair of hypnotizing contact lenses, along with a spell for hypnotizing others," the snakewoman said.

"Ah. Hrm. Okay, those are pretty fucking illegal to own, for. Obvious reasons," Roxy said. "Buuuuuut, they also make my dick hard, and they clearly make everyone else here horny, sooooo..."

"So, you'll still fuck me?"

"Hrm... Maybe," Roxy said. "Turn on your hypnosis light and maintain eye contact, slave. I will order you more thoroughly."

"Yes, mistress," the snakewoman said as her eyes glowed green, reflecting back at her off Roxy's glasses.

"You think I'm fucking you. Any evidence to the contrary is your eyes lying to you," Roxy commanded.

"Y-yes, mistress," the snakewoman said, her hips beginning to gyrate sinuously. "Mmmh... it feels good, mistress..."

"You're so sensitive, aren't you?"

"Mm- mmhmmm," the snakewoman said, nodding quietly.

"So sensitive, you're already close," Roxy said, briefly glancing down- moving her eyes, not her head- to re-confirm that the snakewoman was an omega, and thus had no jizz to harvest. "So close to cumming, from barely a minute of fucking... So sensitive, so shameless."

"I'm- ah! I'm your sensitive, shameless slut, mistress!" the snakewoman affirmed. "Please, I'm so close... Let me cum, mistress!"

"I'm not stopping you," Roxy said. "Cum for your mistress, slave. Now."

The snakewoman writhed in ecstasy, and the spell broke along with her concentration.

Roxy opened the chest, taking the loot. "Let's go home."