Void Crystalline

27 | she/her | minors do not interact | 18+, adult kpop fiction

[voidcrystalline]

The Kpop Workshop

In a world where Kpop idols become slaves, one "talent agency" stands above the rest when it comes to customer satisfaction. This is a catalog of their merchandise.

Things you will find contained here: Documentation, Sexual Slavery, Oral Sex, Rough Oral Sex, Anal Sex, Anal, Ass Play, Blow Jobs, Titfucking, Crying, Begging, Corruption, Face-Fucking, Forced Orgasm, Hair-pulling, Futanari, Hotdogging, Humiliation, Rimming, Watersports, Deepthroating, Cock Warming, Auction, Nipple Piercings, Slapping, Spanking, Gags, Multiple Penetration, Intercrural Sex, Kissing, Massage, Foot Jobs, Sex Toys, Bondage, Exhaustion, Sounding, Urethral Play, Aphrodisiacs, Body Modification, Choking, Objectification, Masturbation

(Tags are mostly implied within the documentation, but I will write small fics to accompany some of these when the inspiration strikes me.)

There are many groups/idols that I intend to add to this catalog. If there are any you want to see sooner than later, please drop a comment/ask/message! If I'm not as familiar with them, I'll let you know so you can give me some hints.

Catalog

Holy crap this list is so ugly. Tumblr is so bad at this. I'll fix the formatting soon (writing this as of Jan 20, 2026)

Aespa

Profiles

Headcanons (1)

Stories (Karina 1)

(Non-Kpop-Workshop Things)

CLC

Profiles

Headcanons

Stories

(Non-Kpop-Workshop Things)

Everglow

Profiles

Headcanons

Stories

(Non-Kpop-Workshop Things)

Fromis_9

Profiles (I will need help with these)

Headcanons

Stories

(Non-Kpop-Workshop Things)

Gfriend

Profiles

Headcanons

Stories

(Non-Kpop-Workshop Things)

I-DLE

Profiles

Headcanons

Stories

(Non-Kpop-Workshop Things)

Itzy

Profiles

Headcanons (1)

Stories (Yuna 1)

(Non-Kpop-Workshop Things)

Kiss of Life

Profiles (Need some help with Haneul)

Headcanons

Stories

(Non-Kpop-Workshop Things)

Le Sserafim

Profiles (Need some help with Kazuha and Eunchae)

Headcanons

Stories

(Non-Kpop-Workshop Things)

Loona

Profiles (Loossemble, ARTMS, Soloists)

Headcanons (1, 2)

Stories (Jinsoul 1, Choerry 1)

(Non-Kpop-Workshop Things)

Purple Kiss

Profiles

Headcanons

Stories

(Non-Kpop-Workshop Things)

Red Velvet

Profiles

Headcanons

Stories (Joy 1)

(Non-Kpop-Workshop Things)

Twice

Profiles (MiSaMo, Jihyo)

Headcanons

Stories

(Non-Kpop-Workshop Things)

Weki Meki

Profiles

Headcanons

Stories

(Non-Kpop-Workshop Things)

WJSN

Profiles

Headcanons

Stories

(Non-Kpop-Workshop Things)

Other (soloists and individuals separated from their group)

Profiles (Chanelle)

Headcanons

Stories

(Non-Kpop-Workshop Things)

Glossary

[voidcrystalline]

Are you sure about fanprose?

I don't think you're glorifying sexual assault

I think it's worth asking at least

If you say so. I'll make an account and ask but be prepared for me to post a screenshot of the response and say "I told you so"

[voidcrystalline]

that itzy owning each other ask,,, hot. your writing of it? scorching. thanks for indulging your (and our) desires to write/read some dark kinky fic (theres such a lack?)

any chance we could get the same premise for the loossemble girls? ik yeojin is going to have a *time* (and hyunjin x hyeju petplay is doing things to me.)

Oh my god right? That asker was a genius. I wish they'd come back so I could give them a big smooch and study their brain to advance human potential

And thank you and you're very welcome!

I would love to do the same thing for all of Loona. I actually started, and have a sentence or two for every pairing. There are just... exponentially more pairings, so when I take a step back and look at it all I instantly exhaust myself, lol

I might break it up into Loossemble/ARTMS/Yves&Chuu just to make the project less daunting? Idk, I said that about writing the profiles and then went back on it shortly after, so maybe I'm just stupid

Doesn't mean I'm not trying though! Yeojin needs everyone to know about her brothel!

[voidcrystalline]

Are you interested in Lovelyz and OH MY GIRL?

I am! I was never a huge stan, but I appreciated them

[voidcrystalline]

Loona profile is a masterpiece!

Do you have any plans to write profiles of I.O.I and IZ*ONE? They're a group with many members, too

I believe I would with enough information about them sure

[voidcrystalline]

https://www.tumblr.com/voidcrystalline/806303399114113024/have-you-thought-about-doing-dayoung-i-wasnt-a

YES

https://www.instagram.com/reel/DYWohq0FLiX/

UM YES

[voidcrystalline]

Chaesisters

https://youtube.com/shorts/xLVsinqEZ34?si=HwL3nwwuVC_4AX5n

https://youtube.com/shorts/_U2tHAxQU7c?si=YUFaav9hVL-t9f66

https://youtube.com/shorts/zlFHrDteY2o?si=Do515Ow6dWLyRQxg

https://youtube.com/shorts/BqNmjujkT8o?si=rTMkoQbxysHGeubf

To the person who sent me this (and so many more): I want you to know that you are a wonderful and helpful person. I definitely want to write something with all this research material, hopefully the next time my depression decides to calm down

[voidcrystalline]

Please sell SinB for gangbang or hardcore abuse. We need to get her emotions.

Unfortunately the Workshop has tried many methods of eliciting emotion from SinB, including the methods you have suggested, and all have failed. This is why we suspect she received a pre-acquisition modification, though we haven't been able to determine its exact nature.

You are certainly welcome to run additional tests after purchase, of course, and the Workshop can assist for a nominal fee.

[voidcrystalline]

What do you think about idol sisters?

ITZY Chaeryeong and Lee Chaeyeon

IVE Wonyoung and Jang Daah

TWICE Jeongyeon and Gong Seungyeon

TripleS Nakyoung and Bibi

What would their reaction be?

Mostly I'm a little ambivalent toward this kind of idea BUT the Chaesisters in particular get me going. They have a fantastic public dynamic that really make me want to write them together.

I'll include a more detailed bit about their reaction when I get around to writing that, but for now I'll say

They DO love performing together...

[voidcrystalline]

I found your blog recently and I really like your writing! :3

More TWICE content, please!

Thank you, and happy to have you here!

I really should finish up the Twice profiles. I made Nayeon's unnecessarily complicated, so I've been procrastinating. I actually just finished up some headcanons for them, but it feels weird to post them without the profiles existing first...

I'll speed it up though! I have some free time coming up, so I'll commit to getting them done before the end of the week!

[voidcrystalline]

how about categorizing idol members by nationality, not by group?

japanese members, chinese members, etc.

what characteristics would they have?

That's kind of what I started with Vivi/Tzuyu and the Hong Kong stuff, but I didn't like how it ended up, so I don't think I'll do much of that anymore

[voidcrystalline]

Which non-kpop celebrities would you want to join the Workshop if the opportunity arose?

I've been thinking a bit more about that since being asked about making profiles for OfflineTV and I'm still not super sure

There's just something about the dynamic of a group that makes them easier to write profiles for, I think. OfflineTV has that going for them so it's a little easier to imagine (someone sent me some more specific requests for them too, so those profiles are in the works)

I might do some actresses someday though? I think I commented once on Kdrama actresses though, and the same applies here. I have slightly unconventional tastes, so it wouldn't be your Jennas Ortega, Scarlets Johansson, or the usual super-famous-for-being-hot ones

I can't think of any western musical artists that I'd do, strangely. I love listening to Ariana Grande's music, for example, but I don't really feel compelled to make a profile for her, you know?

EDIT: Oh maybe Katseye? Do they count as non-Kpop? They kinda feel like Kpop

[voidcrystalline]

It might be strange to ask for this, but I know there's a lot of fandom overlap with K-pop and OfflineTV (streamers in general). For example, see smuttysabina, also a big Everglow fan. Would you be interested in writing for OTV too?

I was so concerned for a second there that you knew me IRL or I accidentally cross-posted on my main blog or something. I forgot that I've talked about being a Forever here. Hahaaaaa... yoikes

But to answer your question: You're asking if I would I be interested in following in the footsteps of a smut writer that I absolutely fucking adore. Yes, and the fact that there was even kind of a comparison between us in your mind flatters me immensely

Problem though. I know even less about streamers than I know about how not to be a dumb whore, which is saying something. I was never a gamer so I think I don't have enough context, besides what Sabina has written. Happy to give it a shot though, if you can send me some information about whoever you think needs a profile

[voidcrystalline]

Which idol do you think would ask for the implant that makes them love the taste of cock?

Among idols who have resigned themselves to their fate as slaves and wish to make their experience less personally stressful, this is a rather common request. See Yuqi, for example. We try not to indulge idols in these desires however, as simply pacifying them is not an inherent goal.

For all of the technological advances we have made, however, the Workshop is not magical, and cannot cause a slave's opinion or personal preferences to change so simply. That is, in part, what their training is for. If an idol has any deeply seated interest or latent desires, our training is designed to bring that out in them. You can see this in action with Gowon.

Of course, we do also modify certain physical attributes. We can make an idol's mouth their primary erogenous zone, as with Yuna. She may not have liked the taste of cock initially, but we can all learn to love whatever is or is adjacent to whatever, brings us the most pleasure.

[voidcrystalline]

How much do you think each member of GFriend would enjoy being a slave?

SinB: All attempts to get SinB to express emotion have failed. Her modifications seem to have effectively removed her self-determination. Whether or not she enjoys her slavery then is irrelevant, as she is passive enough to ignore escape attempts.

Yuju: Yuju is content to perform slave labor as long as she is occasionally provided with victims. Otherwise her mood will rapidly decline and she will potentially become dangerous. This is easy enough to avoid if you own any additional slaves.

Yerin: Yerin is an extremely enthusiastic slave, eager to receive and carry out orders beyond the point of exhaustion. She will seek out orders, so giving her long tasks is recommended. Ideal for buyers who enjoy constant sexual gratification.

Sowon: It seems Sowon is content with her enslavement, but her mood can shift at unexpected times. Preventing this is simple, as she only needs to be provided enough alcohol to curb her addiction. This can notably lessen her capability to carry out orders, but makes containment much easier.

Eunha: Although Eunha will, under regular circumstances, argue that she is unhappy as a slave, she seems to enjoy it subconsciously. The precise mechanism for this is so far unknown. As long as she is ordered authoritatively or forcefully, she will perform to a great level of skill, without complaint.

Umji: While influenced by her modifications, Umji is quite content with her lot as a slave. At worst, she may become dissatisfied with the amount of sexual attention she receives, if low. If her modifications are disabled she very clearly ceases all enjoyment and quickly formulates an escape plan.

[voidcrystalline]

Hey! Hope you're doing well. If you don't mind, can you write a Ningning headcanon once you're free? I don't see many good fics about her on here and I really like everything you've wrote so far.

You've asked at a good time, as I'm "in a very Chinese era of my life," or whatever it is Tiktokers are saying these days. In this case, meaning Ningning is kind of bias wrecking me. I'm very loyal to my Karina bias, but the way Ningning has been slutting up lately makes me feel very seen

Well I would need to know specifically what kind of headcanon you're looking for. For example, I just threw this together (hypothetical question, similar to a few I have in the inbox but strangely not this one specifically: "How does Aespa give head?")

Ningning: Ningning’s training in oral sex, as with the rest, had to be delayed and specialized for her recovery. Bodily fluids boost the efficiency of her medication, however, so oral sex is strongly recommended. Buyers will need to be cautious and let Ningning lead to avoid serious damage. She has been trained to be gentle as well. She will need to supplement the oral performance with her hands. 

Giselle: On normal days, Giselle performs oral sex unenthusiastically and with subpar skill, despite being capable of oral orgasm. In a heat cycle, she will deepthroat, or drive her tongue into, anything offered to her without question or regard for safety. She will do this until she is physically forced away, or she passes out from lack or air or exhaustion. This frantic behavior is increased if she receives stimulation to her other holes as well. 

Winter: Winter’s oral sex skills are highly advanced. Without being given detailed instruction, she will default to performing deepthroat or rough cunnilingus. She will make a show out of the amount of mess she makes of her own face, smearing saliva, ejaculate, and makeup all over. This seems to be a fear response, wherein her expectation is to avoid further punishment by making it appear to have already caused her harm. This is of course incorrect, and she can reasonably take a great amount more punishment. 

Karina: Karina excels in oral sex as much as in other areas. Her training is in all manner of oral sex, but she seems to have a preference for that requiring minimal head movement or deep penetration. She is particularly adept with small penis and clitoris pleasure. Provided a penis large enough, she will prefer to suck the tip as the rest is held between her breasts. Otherwise, she will find the best manner to display her breasts for view.

[voidcrystalline]

that aespa kinks post incredibly written!! i’d love to see a loona version, if you’re up for it of course :)

Thank you so much! I know you sent this fifty-seven dog years ago, so I wanted you to know I am working on it. I only have 4/12 so far, but I'm trying to be really specific