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Chapter 3
by
Basaj
What do I do next?
Try not to panic
My heart is pounding in my chest as I sit on the toilet. I’m actually pretty calm given the situation. Am I dreaming? I pinch myself. Nope, I’m awake.
After I sit on the toilet long enough to give me something of an excuse, I flush and wash my hands. Before I head back to my room, I walk over to the living room to check on Heather for a second time. She’s sitting on the couch, working or playing on her laptop. Yeah, she’s definitely changed. I can see her new proportions from across the room, and there’s no mistaking the changes to her body.
I think of my relationship with my older sister. We used to be a lot closer as kids, but she’s been more and more distant over the past couple years. I can’t help but feel she’s started to look down on me, what with her graduating with honors, already preparing to start med school next year, meanwhile it’s obvious to everyone now that I won’t finish college on time, if at all.
Her clothes are still way too small for her newly expanded body, but she doesn’t seem to notice. I feel compelled to try and figure out what’s going through her mind.
“Hey heather, what’s up.”
“Uh, hey James, you’re awake. I’m fine I guess.” I’m not exactly socially proactive lately, but the surprise on her face when she realized I’m out of my room and trying to make conversation feels a little damning. Still, I need to continue.
“Are you feeling…. different at all today?”
“No, I feel pretty good today. If you feel off, it’s probably because you stayed up all night playing video games again.”
My face flushes with embarrassment. “Yeah, maybe, just checking in, see you later.”
Mom and dad are one thing, but having Heather act disappointed in me really hurts. Still, I got what I wanted, there’s no mistaking that the app changed her, and no question now in my mind that this is really happening. I head back to my room to experiment more.
I shut and lock the door behind me and sit down on my bed. I can’t risk anyone finding out I have this. Not only would my family kill me if they find out what I already did with it, the government or military or who knows what else is going to want to take this away.
I open the app and I’m greeted with the same home screen from earlier. I’m still level one, and now my gem count is sitting at a fat red zero. The only difference from when I first opened the game is that now I also have a tab labeled “my girls” which is a list of the girls I’ve “collected” as well as a number representing what “level” they’re at. Right now the only girl I have is Heather, and she’s at level 1.
Seeing the way the app has changed her and knowing that I’m the one who sculpted her body like that is way too exiting. I need to get a hold of more gems so I can keep experimenting.
I remember from the tutorial that I’m supposed to be able to earn gems from beating game levels. Starting a level take a certain amount of energy, which replenished as a set rate throughout the day. If this game is like most others, the first few levels will be disproportionately easy and rewarding.
Besides gems, I also got 250 gold coins from beating the tutorial. When I thought this was a normal game, I assumed gold was going to be the worthless resource that non-paying players could get as a reward and had a fraction of the usefulness of gems. Now that I know how powerful the app is, I decide to tap the info icon next to my gold total and see what I can buy with it.
A tooltip pops up.
Gold is a new resource introduced in the latest version of custom girls. Gold was introduced because the development team felt the need for a less valuable and more plentiful resource than gems. You can typically spend gold on one time actions and temporary upgrades for your girls. To see what temporary upgrades are available, check out the gold tab under “upgrades.”
The gold menu isn’t hard to find. It’s in the last tab, next to “hotkeys.”
I scrolled through the list of temporary upgrades, making note of a few that catch my eye.
Summon target – 10 gold
Target must wear an outfit of users choice for one day - 450 gold
Target will serve the user breakfast in bed – 50 gold
Target will give user a blowjob until the user cums – 500 gold
User can freely grope target with no consequences until the end of the day – 650 gold
Target must clean and tidy the user’s living space – 100 gold
Shit, does the app know I need to clean my room, too? There’s no way whatever all powerful beings created the app are seriously watching me and shaking his head about how much of a slob I am, is there?
Actually, though, the game did just remind me of what I was thinking earlier, I really need to clean up my room before mom gets home.
I scroll up toward the top of the list and select the option to have Heather clean my room for me. She should think what she’s doing is normal, but that doesn’t mean she won’t judge me for the state I’ve left it in.
With a tap, I buy the upgrade, and the gold is immediately deducted from my account. I know the app is real, but this is the first time I’ve used it to change a behavior. I’m not sure what to expect.
Around a minute later, I hear a soft knock at my door. I open it, and my sister stands in the hallway, holding a box of wipes and still wearing the too tight outfit from earlier.
Does she still not notice her clothes don’t fit anymore? Will she ever?
I can clearly see the outline of her bra as it’s pushed out and strained to the breaking point by her swollen tits. As her bra struggles to contain her, it pushes her breasts up and out, forming exaggerated cleavage that spills generously out of the top of her shirt. Her old jean shorts are in even worse shape. It actually looks like they’re going to split if she moves around too much. Heather used to have a slim and somewhat athletic build, but her new fat, juicy thighs look like they could barely squeeze into her shorts.
She probably couldn’t get those shorts on anymore, with her body being like this. Hell, I don’t even know how she’ll get them off.
Without saying anything, she walks in and starts collecting dirty clothes off the floor. She doesn’t seem to think anything of giving me a perfect view of her new cleavage as she bends over in front of me to pick up some of my old t-shirts from the floor.
Is that a feature of the app, or is she just naturally oblivious? Maybe she doesn’t realize how much of a pervert I am.
At first, I don’t want to test things, but I’m overcome by curiosity. Does she really not notice anything off about any of this?
“Hey sis, why are you in here?”
“I’m cleaning your room for you, it needs to be clean before mom gets back.” She’s talking over her shoulder as she bends over my hamper to collect the few clothes I bother to put there instead of on the floor. As she bends over, she gives me a perfect view of her inflated, exaggerated bubble butt. She doesn’t seem to notice what she’s doing.
“Ok but, why? Why did you suddenly decide to help me out?”
She actually looks puzzled for a second, but I notice she doesn’t interrupt her cleaning at all while she’s talking. “Well, I don’t really have a reason, it just feels like the thing to do, you know?”
“Well, it’s not that I don’t appreciate the help, but, like, you’ve never done anything like this for me before, don’t you think it’s a little strange to be doing it now?”
She looks like she’s thinking of how to respond, but before the can say anything she finishes collecting the last of the dirty clothes from the floor of my room. As soon as she’s done collecting, the immediately turns around and leaves the room without saying another word, presumably to put them in the wash. I guess the app isn’t going to let heather take a break from her cleaning to stay and chat.
The fact she was talking to me like everything was normal, while not even knowing she wasn’t the one in control of her actions, was exhilarating. With the app controlling her, she probably won’t, stop until she’s done, no matter what I say to her. I wonder briefly if she would even stop if I touched her. If I reached down and popped one of her breasts out of that top of hers, would she even fix herself? Or would she finish cleaning my room with her tits hanging out? The thought is exiting, but I put it out of my mind; there’s no reason to push my luck and get myself in trouble when I have this insane power at my fingertips.
A few minutes later, she returns. She doesn’t bother to knock this time, she just opens the door and gets right back to cleaning. While Heather gets back to cleaning, I open the app and start grinding out the first few levels.
The game seems easy, just like I predicted. The concept seems to be that I pick one of my custom girls to serve as my avatar while I maneuver through a maze, past obstacles and bandits waiting to ravish me and toward treasure. At the end of each level, both me and the girl I’m playing as earn “experience points” which contribute toward eventually levelling both of us up. After I finish the third level the game informs me that I’m out of energy, it will probably take until tomorrow before the energy bar is refilled and I can play again.
Beating the first three levels earned me another 13 gems, and an additional 650 gold, for a total of 800.
It’s tempting to use my newly earned resources right away, but I don’t know how easy it will be to keep getting gems in the future.
Make another purchase?
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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