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Chapter 13
by
ZeeRay905
How does Natalia figure out what the fuck is going on?
She reads her fucking notifications!
In my defense, I was dealing with a lot at the time, and hadn't had the chance to go through all of my notifications. Also, I was having the issue of dealing with the conflicting emotions brought about by my Custom Challenge and surprise Bonus Challenge. What this amounted to was juggling the changing perceptions of Marcie, the confusion and embarrassment of James, the cocksure attitudes and nonsensical idioms of Roy and my own strange re-realization that I was naked and deeply wanted to be outside as I came down off the sexual high of unleashing Marcie's inner cum slut. All in all, a whole hell of a lot to deal with on top of keeping up with my notifications.
Using the hand that was masturbating my pussy to also cover it, and the arm that was holding my phone to somewhat hide my nipples, I took a breath and tried to ignore the antsy, itchy feeling I had from not going outside. If anything I took solace in the fact that the curtains in front of our windows in our 3rd storey apartment were open and the bright sunlight was shining down upon my naked body as I lounged on the sofa with James caressing my legs.
My emotions more or less under my thumb, for the moment, I opened my notifications back up.
Hi, Natalia Evescolt! Thank you so much for using Custom Girls, v1.21! My name is June, your regional SuccuLabs community manager. We would like to inform you that one of your Custom Girls has been given an invite to participate in one or more of our other products in the SuccuLabs app suite. As default, Custom Girls can only see the Customizations you have selected the Custom Girl to be Aware of, however you can change this at will in the SuccuLabs Regional Moderator App (SRM), which we have already installed on your phone. We have also installed our storefront app, Girl Market. Have fun customizing and keep up the good work!
~June, Community Manager, CG Team, SuccuLabs Studios
Well that brings up more questions than it answers, I thought.
I started reading my notifications on the bonuses I'd unlocked when part of my brain tuned into the conversation between James and Marcie. He was asking her, politely, why it was she referred to herself in the third person. Marcie didn't have an answer for that and seemed to be a little uncomfortable with the question. James was going off on the psychological implications, complete with tangents. It was only a matter of time before the "This Slut" question came up, so, given that I was trying to burn gems anyway...
[Slut Pride] 6 gems.
This Custom Girl will enjoy being called a slut, feeling a small amount of pleasure every time, and will proudly self-identify as a slut.
As I hit the confirm button I began waiting for James to take a breath. When he did, I interjected myself back into the conversation. "I have to admit, I've noticed that too."
"Sorry, noticed what?" A tingle of embarrassment went through me as both Marcie and James looked back over at me, my naked body laid out on the sofa, my hand covering but also clearly working on my pussy, my other arm only managing to cover my nipples. I must have blushed because James gave me a sympathetic stroke of his hands on my legs and gave me a look as if to ask "You good?"
I shook off the feeling, contenting the embarrassment program (or whatever it was in my head) to just continue covering my pussy and nipples and continued: "I've noticed that, Marcie, you've been referring to yourself as 'this slut' a lot recently. Is this a new thing you're doing?"
When I said the word 'Slut', Marcie got a strange look on her face, like she was concerned, but also confused. She thought for a few minutes. As she did so, I whispered to James: "I really like the way you're petting me, by the way." James responded by smiling at me and giving me longer strokes of his hand from ankle up to my hip...
"This Slut..." and she paused and shivered as she called herself a slut, clearly enjoying the way that sounded. "This slut feels... what this slut means is..." she shook her head, struggling to put her thoughts into words, and, I suspected more than a little distracted by the little tickles of pleasure the word gave her.
"So, Marcie, would you like us to refer to you as a slut from now on? Like, 'Oh, Marcie, you slut, that cum on your face looks amazing!' Like that?"
"Mmmm... yeah, that, for some reason, that just... this slut doesn't know... feels right... Call this slut a slut again?"
"You're a slut, Marcie. A wonderful, proud, cock-sucking, cum covered slut."
"Mmmmm..." Marcie grabbed both of her breasts, one in each hand, and gave them a little squeeze, a smile of contentment coming over her cum glazed face as she sighed with pleasure.
"It sounds like you're really embracing your true slutty nature, Marcie. Really embracing your fantasies and living them, rather than just dreaming about it," I continued.
"Mm-hm..." Marcie said, giving her breasts another squeeze.
"That's just, I don't know, so commendable, Marcie! You go, slut!"
A huge smile of thanks at the affirmation came over her face as she stood up. "Thank you, Nattie. I'm sorry I got so upset with you being naked yesterday. Is this, um, is this your new self now too?" She was holding her hands over her breasts, finding her modesty again as she was done with her pancakes, and jutted her chin out to me to gesture toward my naked body.
"Yeah, I think so... I think I'm sort of an exhibitionist."
"I think you definitely are," James said.
"Sure looked like it earlier," Roy piped up. He had been sitting in an armchair this whole time, mostly fiddling with his phone and surreptitiously taking pictures of my naked body when he thought I wasn't looking.
"And, uh, Marcie?"
"Yes?" she said, walking around to behind the sofa and looking straight down at me. A drop of cum fell off her face and landed on the tip of my nose.
"Oh!" I said, rubbing the cum off my nose with the side of my hand and then, seeing the look on Marcie's face, licking it off my hand. Before anyone could comment on this action, I pressed on. "Well, my dear, dear slutty friend," I buttered her up to hopefully get what I wanted. "Would you mind if I sort of became a home nudist, and didn't wear clothes while in the apartment?"
Marcie sighed, and some of the old Marcie showed through in her frustrated sounds. But she took a deep breath and seemed to push the irritation away. "And I guess you won't be putting clothes on when people come over?"
"I don't think so... I'd like to try that out for a while. I'm still kind of figuring myself out. I'm not sure I have your clarity and determination, Marcie."
"Stop trying to flatter me, naked girl," the cum covered slut teased.
I grinned. "Sorry, slut girl."
"Mm," she said, liking the sound of that. "Well..." she sighed again. "I guess. But don't leave your clothes in the bathroom, and just because your a part time nudist doesn't mean you get out of doing laundry - we still alternate weeks like we agreed, yeah?"
"Absolutely!" I agree quickly.
"You two do each other's laundry?" James asked.
"Yeah, we agreed that we'd pool our laundry and switch off who does it on alternating weeks."
"Sounds like a good idea," Roy said, trying to look casual as he took a picture of a topless cum plastered girl standing over a reclined totally naked one. I wondered if James and Marcie saw what he was doing?
"Cynthia would never agree to it," James shrugged. The way he was rubbing my hip was driving me just a little bit crazy, I'm sure my arousal level had been super high ever since watching Marcie get cum coated, but I was too exhausted and my tummy too satisfyingly full to do much about it until now...
I tried to carry on with the conversation a little longer. "Um, Marcie, where are you going?"
Marcie had picked up her discarded tee-shirt and was going into the hallway to our rooms and the bathroom. "I'm going to change my shirt, I'm not an exhibitionist like you are, naked girl."
Well, I thought, we'll work on that. "Fair enough," I said.
Marcie, holding her discarded shirt over her breasts, went to her room to get another top, probably one that didn't have to go over her head and risk messing up her new favourite makeup.
James and Roy were talking about roommate agreements and I half listened while I went back to reading my notifications.
There were several notifications regarding new Bonuses I'd unlocked from my achievements. To summarize these notifications, they were as follows:
[Resist Mindbreak]
When your arousal level is at or above 100%, you will retain more brain function than previously, and be less likely to experience orgasm paralysis, sexual fugue, and other high-arousal status effects.
[Willing Partners]
When your arousal level is at or above 100%, others around you will begin to become aroused as well and their sexual inhibitions will go down.
[Arousal Regeneration]
When your arousal level is at or above 100%, some of this sexual energy will be channeled back to you in order to heal, restore and refresh you! With high enough arousal, you may not need to sleep to remove fatigue!
[Mind Break Gem Reward]
When you keep a Custom Girl at or above 100% arousal, you will earn +1 gems per minute that she remains at or above 100%! Works with unlimited number of Custom Girls at once!
My hands were shaking with excitement! The mind-blowing implications of this app kept getting more and more vast as I continued to use it. Then I realized that this wasn't the only reason my hand was shaking. It seems that, as I had been reading, I'd spread my legs, my left leg having removed itself from James' lap, that foot on the floor in front of the sofa, and I was masturbating in earnest with my free hand. I was approaching an orgasm.
I put down my phone and moaned, head back. "Mmm... would you guys mind watching me orgasm again? I have trouble getting off when people aren't watching."
"No problem, little filly! Happy to help!"
"Is that a thing you've been dealing with for a long time, or is this part of your 'striking out on your own' discovery development?" James asked. I looked up to see if he was at least looking at my pussy the way I asked him to before, seeing that he was (good boy!), I answered. "I've always enjoyed the idea of people watching me masturbate," I said, giving something of a non-answer.
Head pressed back against the pillow as I continued to masturbate, helped along by the fact that James was still gently caressing my leg and thighs and hips... I held my phone over my face to check my own arousal levels. I was creeping up toward 80%. Apparently, naturally raising oneself to 100% was hard without significant modifications, like I'd given Marcie. Part of it might also been the Bonus Challenge mechanics: maybe I didn't have a big enough audience or this wasn't considered "outside" enough, and that was messing with me somehow.
I decided to try a bit of an experiment.
"Hey, do either of you like spanking?"
"W-what do you mean?" James said, slightly confused by the jump in topic.
"I really, really like to be spanked!"
"Well, I can give it a shot, little filly!"
"Oh, could you?" I said, getting up, bouncing with excitement.
James made a disappointed face when he lost the girl lying across his lap. I grinned and stood in front of him, bent at the waist, to present my butt out to Roy, my hands on James' knees. "I'd love it, James, if you could stroke my hair and call me a good girl for taking my spanking?"
"Um, sure!"
I left my phone on the sofa, locked. I didn't want to risk checking it while I had someone both in front of me and behind me.
I stood on my toes as I was bent over, in order to hold up my butt nice and high.
"You want me to start out soft or come out strong?"
"Let's start soft and I'll let you know, yeah?"
"You got it, filly."
James was already caressing my head and I grinned and rubbed my head into his palm. If I have known that one could get fuck buddies like this just by going outside naked and masturbating in public, I would have done it years ago.
Roy patted my butt.
"One," I said. "Harder, please."
Roy slapped my butt.
"Two. Harder, please."
Roy gave my butt a proper little spank. "Oh! Getting somewhere! Three. Much harder, though, please."
Smack!
"Four," I crooned. "Harder, please."
SMACK!
"Five! Harder, please, sir!"
SMACK!
"Oooh! Six! Harder, please, sir!"
THWACK!
"OHYES! THANK YOU SIR! Harder, please...! SEVEN!
This continued for some time, Roy really leaning into his efforts and swinging from the shoulder. I sort of lost count, too, lost in the stinging sensation in my butt and in James holding my head with one hand, stroking and playing with my hair with the other, crooning to me what a good girl I was. I was so lost to the pleasure I didn't even realize my legs had given out and that I had fallen to my knees, lying in James' lap until I noticed that Roy's rhythm had changed. Since my butt was lower, he had switched to an underhand swipe, which wasn't as strong as the swing he had been using previously. I struggled to stand back up, and when I got there (helped by Roy), I couldn't help but start masturbating, sobbing for Roy to watch me cum.
I can only guess what a mess I was, but I'm certain I was over the arousal threshold. I came with screaming fits of pleasure, my head pressed against James' chest. Afterwards I curled up on the sofa again, my head in his lap and he continued to pet me and play with my hair. I felt so, so good...
An indeterminate amount of time later, I rolled over and said: "Mmmm... thank you."
"You're welcome," James said.
I looked around. "Where'd Roy go?"
"Back to our apartment."
"Was I asleep?" I looked out the window. It was still sunny out.
"Sort of. You seemed like you needed a few minutes."
"Why James," I said in a playful voice. "You didn't take advantage of my naked body when I was asleep, did you?" I made a face of clearly mock shock as I sat up and covered my breasts with my hands.
"N-no!" James said, defensively.
"Hm..." I said, rolling my eyes. "Well, I wish you would next time. I mean, just a little bit?"
James gave a nervous chuckle. "I'll, um, see what I can do?"
"That's all I ask," I teased further. I sat up straight and stretched my arms over my head and yawned before retrieving my phone with one hand and covering my breasts with the other.
I still had notifications to read and parts of the app to check out, but, being that it was just James and I, it would be rude to not engage him in conversation. I asked him some psychology questions which had him off on a tangent again, which I half listened to, giving token answers like "interesting" and asking small clarification questions when I heard a term I didn't recognize.
The first thing I needed to clear up was how my new [Mind Break Gem Reward] mechanic worked. According to my gem bank breakdown, today I had earned 11 gems from a "Custom Girl", I'm guessing Marcie, being over 100% of her arousal threshold. Which meant that, while she was sucking Roy's cock and jacking off James, she must have been over 100% for approximately 11 minutes. So, that was good to know.
The rest of the breakdown was done thusly:
Earned Gems
Custom Challenge Gems: 59 gems
By Day:
8-26-2033: 59 gems
8-27-2033: 0 gems
Achievement Gems: 61 gems
By Day:
8-26-2033: 1 gem
8-27-2033: 60 gems
Bonus Challenge Gems: 0 gems
By Day:
8-26-2033: 0 gems
8-27-2033: 0 gems
Custom Girl Income Gems: 11 gems
By Day:
8-26-2033: 0 gems
8-27-2033: 11 gems
Earned Gems (total): 131
Complementary Gems: 10
Total (Lifetime) Gems: 141
Well, that was one mystery solved. Two more notifications were about achievements.
SHAPER OF CARNALITY
Invest at least 100 gems into a single Custom Girl: COMPLETED! 20 GEMS AWARDED + [CG Immunity]
Invest at least 200 gems into a single Custom Girl: 118/200. 30 GEM AWARD.
MASOCHIST GOOD GIRL
Take 50 spanks in a row: COMPLETED! 5 GEM AWARD + [Sensitive Butt]
Take 100 spanks in a row: 53/100. 10 GEM AWARD + New Feature Unlock
Accepting the awards, my new gem total was 47/105. And I still had at least 10 that I could pop from the COLLECTOR OF CUSTOM GIRLS achievement chain with the addition of at least one more Custom Girl. Work work work, I teased myself.
It was... tempting to keep plugging away at Marcie, but I really had to get some other Custom Girls as, effectively, I only really had one. Dr. van Olsbracht didn't really count yet.
"Hey, I need to go take a shower, you want to go to the mall or something afterwards?"
"Of course! I'd love to hang out!" I said. Was I being hit on? "I um... yeah! We could, like, check out what they have? I haven't been there much yet. Have you?"
"Oh, yeah, I've been here for a bout two semesters now, I think I've got a pretty good grasp of this mall. It's not bad."
"Um, sure, meet you back here soon?"
"Yeah." He stood up. Saying awkward goodbyes and "see you laters" James left to get ready. I looked back down at the app, determined to finish my notifications.
[Sensitive Butt]
Your butt is now extremely sensitive to stimulation, giving you a high amount of pleasure when it is stimulated.
Testing this out, I gave my butt cheek a playful little slap.
I nearly fell off the sofa and screamed out loud with the gentle tap I'd given myself.
Marcie came running out into the living room, dressed in a button-up white blouse and her school skirt, cum starting to dry on her face a bit. "What's wrong?"
"Oh, nothing, I was just... playing with myself."
"It sounded like you hurt yourself."
"Yeah, we were doing some spanking earlier, my butt sort of hurts now."
"Is that a good thing?"
I sighed into a huge dopey smile. "Oh, it is such a good thing, slut girl."
Marcie returned my smile. "Okay, good to hear, naked girl. Be careful."
"Always," I teased. Marcie went back to her room.
Through the app I could see her current status was "Watching Internet Videos".
My last current notification was regarding my last new Bonus unlock.
[CG Immunity]
You are now immune to all sexually transmitted diseases. Also, once you invest at least 50 gems in a Custom Girl, they will become immune to all sexually transmitted diseases as well!
Fantastic! I thought. Yet more moral justification for my quest to bring about other women's sexual self-actualizations!
In that vein, I started looking around the Girls in Range list and began plotting my "cheese the system with CG collection" plan. The way I looked at it, I could either grab some girls in the apartment who were in range, sight unseen, or I could go to the mall and do some window shopping for Custom Girls. For the former, Cynthia was an obvious choice. For the later, I knew I might run into some classmates, or some of James' classmates, at the very least.
Decisions, decisions, I thought...
Gems Remaining: 47
Total Gems Spent: 119
Lifetime Total Gems: 166
Average Gems Earned/Day: 78Girls Customized: 2
Achievements Unlocked: 15
Orgasm Count: 43
Custom Girl Investment Tracker:
Marcie Klein: 118 gems
Dr. Stella van Olsbracht: 1 gem
Who does Natalia customize next?
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Custom Girls
Involuntary sluts
An App that can women to follow rules of behavior against their will.
Updated on Jun 9, 2026
by duduvar
Created on Aug 21, 2020
by duduvar
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