Trying the app

My entire body tingled like a livewire. What was this app? I mentally spun her around again and again. Each time her ample assets jiggled. Below her T-posed model was a list of tabs. Each was a label.

SPEECH HEAD BREASTS BODY ASS LEGS MOTOR MISC. HOTKEYS

I had no idea what most of that meant but I explored. The two that drew me in were Breasts and Ass, just like Ms. Munroe herself. I clicked on the Breasts tab and was greeted by a list of different things I could do to her breasts. Customizations, the app called them.

Breasts jiggles at slightest movement: 7 Gems.

Can never turn down a request for a titjob: 90 Gems.

Craves semen on breasts: 65 Gems.

Double breast sensitivity: 15 Gems.

Increase cup size: 5 Gems per cup size.

Lactates when aroused: 25 Gems.

Must show off cleavage at all times: 1 Gem.

Permanently hard nipples: 2 Gems.

And it just went on. Many were way out of my current reach. I continued looking for a moment, but then moved onto the Ass section. There, I saw it. Something perfect.

Allows people to touch ass without consequence: 20 Gems.

Ever since I saw it that ass has been racking the ins and outs of my mind. The ability to touch it? Incalculable value. I had to have it. I clicked on the purchase and it asked me if I wanted to spend all my gems. I approved and it took them all. When I finished buying, a new window popped up.

Achievements!
Earn bonus gems for completing certain criteria. As you unlock more and more achievements they get harder and harder.

Add a custom girl 1/1. 1 Gem unlocked!

Add 5 custom girls 1/5. 5 gem reward.

Buy a customization 1/1. 5 Gems unlocked!

But 5 customizations 1/5. 10 gem reward.

So there were bonus gems. I wasn't just locked into 10 a day. I could spend some more of these but I wanted to test out if what I bought even worked first before buying more. I tabbed out of that window and then another pop-up appeared about another new mechanic.

Welcome to Awareness!
Here you can mess around with how the rest of the world reacts to the change you just made. Do only you notice? Is everyone aware? You decide!

Next to the newly bought customization a toggle was available. I could set it so that only I was aware, Ms. Munroe was aware, everyone but her was aware, all my custom girls were aware, or no change, everyone aware.

“Well, it's not much of a prank if she doesn't notice,” I thought. I set the awareness so me and Ms. Munroe knew, but no one else did.

Change awareness for a customization 1/1. 2 Gems unlocked!

“Now all I have to do is test it.” I said.

---

“So you see, Ms. Lane, this is an extraordinary opportunity for Max here.” Ms. Munroe was talking to Mom in the living room. Her back was to the stairs. She turned to look at me come down them when she heard the steps creak but then went back to talking to Mom.

“I can see that.” Mom was holding a brochure in her hand. “It's just, I'm so concerned about him going there on his own. He just got in trouble at school and he's been a handful lately.”

“Ms. Lane, the Jean Grey Institute has dealt with all manner of troublemakers.” She turned to look at me. “He's nothing we can't handle.” She turned back to Mom. “Besides, we're only a phone call away.” She smiled an intense smile.

As the two continued to talk about boring stuff like tuition and curriculum, I slowly approached Ms. Munroe from behind. I gulped. This was the moment of truth. Can't wait for my mutant ability to get me killed because a prankster like me can't tell when someone else is pranking them.

I grazed my knuckle against her rear. Just brief enough that if anyone asks it was an accident. But it was anything but.

“We have some of the best teachers in the nation,” Ms. Munroe continued. “Professors in molecular biology, genetics, behavioral psychology.” She just kept going like nothing happened.

I did it again. Still nothing. I let go of a breath I don't even know I'm holding. It worked! It fucking worked! Magic apps that let you edit women are real!

I got bolder. I turned on my mental camera to record her reaction. I took my full hand and just grabbed a chunk of her ass. I squeezed. Hard.

“Yeep,” Ms. Munroe yelps. “Apologies. What were you saying Ms. Lane?” So she can feel it.

“Excuse me,” I interrupted.

“Yes, Max?” She turned to me. I was still knuckle deep in her ass with one hand.

“Can I get one of those pamphlets?” I asked.

“Sure,” She hands me one. I roll it up into a cone. I step behind her again as she goes back to talking to Mom. I take my hand off her ass and go for broke. I swing the rolled up paper with both my hands at her ass, full ****.

“Ow!” She yells out. She bounced off the balls of her heels in shock. It's at this moment I think I'm screwed. She was playing with me, right? Maybe she even liked the groping but smacking her ass that hard was a bridge too far. But no, nothing happens. She just goes back to talking. Mom doesn't say anything either.

“So you're covering the whole expense? Why?” Mom asks.

“The institute has a very generous pro bono department.” Ms Munroe smiles. She starts to rub her behind with one hand to soothe the pain. Then she turns to me. Oh no, I'm caught. I shut my eyes in preparation for what's about to happen. “Are you ready to go?” I open them.

“Huh?” I said.

“You came downstairs,” She says. “I assume that means you've finished packing, no?”

“Uhhh, yeah, let me just grab my bag.” I ran upstairs. I can't believe that happened. I can't believe it worked!

I had to go now. There were so many hot mutant babes I could be messing with using this app. I grabbed my bag and hurried downstairs. Ms. Munroe was waiting for me by the doorway. I gave Mom a hug and kiss goodbye and followed Ms. Munroe out the door.

I didn't exactly know where she was taking me and I didn't care. While she led the way I played bongos on her behind with my hands. I was recording in slow motion each sway bouncing jiggle from my machinations. By the time we reached Ms. Munroe’s car I was rock hard.

Once we sat down the rest of the ride was pretty standard. I couldn't exactly grope her while he was sitting down and driving so we just talked. Ms. Munroe really wanted to hammer home this idea of responsibility in me and maybe any other day she would be hot enough for it to work but finding out I could mess with women on a whole new level really hindered my beliefs in fairness and equity. While she talked I just spun around her naked model in Custom Girls, gawking at it.

“We’re here,” Ms. Munroe said after a couple hours in the car. We got out and she led me to a venerable mansion. While we were walking I continued to slap and grope her ass as we walked because what else was I to do?

Eventually I looked up and was astounded by what I was looking at. The place was huge! Dozens of students walked the campus and my hunch was right, mutants came packing. Girls had large chests and men had broad shoulders. The ones that looked human at least. About a quarter of the students, maybe less, were some manner of otherworldly. Technicolor skin, gooey exteriors, skulls for heads. There is no telling what they would look like. It was all a lot to take in.

“Woah,” I mustered.

“Yes, it can be very overwhelming,” Ms. Munroe said. “Take a minute to breathe it in. When you're ready, I want to take you to the headmistress. She would love to meet you.” The headmaster’s a girl? Probably a mutant girl? A hot mutant girl? I nod.

“I think I'm ready,” I said. I exhaled. Time to see what this is all about.

We got to the headmaster’s office pretty quick. I tried not to gawk at the inhuman mutants but failed miserably. Even frequenting the forums I've never seen this many superpowered people at once. Made my little tech abilities feel like nothing.

“Well, here we are,” Ms. Munroe says as we approach a door towards the middle of the mansion. It has the label JEAN GREY — HEADMISTRESS” on it. Ms. MWeonroe gestures for me to enter. I was currently using her left ass cheek as a stress ball I was so nervous.

“Are you not coming with me?” I turned to her. She shakes her head.

“We believe it best for the first meeting between headmistress and new student to be one-on-one.” She said.

So this is where me and that sultry accent and bodacious bod part ways. For now. I slowly let go of her ass and stepped forward. I took a breath. Then I opened the door.

When I walk into the room I am greeted but I truly gorgeous woman. I know I've been saying that about basically every mutant but the truth is she was stunning. Hot as hell.

She was sitting on a desk filling out some paperwork. Even just by her sitting down I can tell her chest was ginormous, possibly larger than Ms. Munroe's. She had flowing red hair the color of fire. Like, I've met redheads before, a couple go to my old school, but this was another level. I'm pretty sure they only have this color in Halloween dye bottles. She was wearing small wire frame glasses that highlighted her deep green eyes. She really sold the sexy librarian book.

“Hello,” She said when she looked up at me. She took off the glasses and put them on her desk. “You must be Max. Ororo called ahead and told me about you.” She got up from behind the desk and walked in front of it. That's when I saw it.

Jean was clearly pregnant. She wasn't nine months or anything but had a sizable baby bump. I've never told anyone this but I kinda heva pregnancy fetish. I think it's obvious from my attraction to the app that I like transformation and pregnancy is like nature's first transformation. Milky tits are also just an attractive image.

“Hello,” I sputtered out. I reach out to shake her hands. She takes it. I immediately snap a photo of her.

“I wanted to welcome you to the institute,” She said. As she talked I uploaded her image to Custom Girls. When I did, a window appeared. The same one from when I uploaded Ms. Munroe.

“'More Data Needed. Image Required: Cleavage Shot'’

Okay, simple enough.

“Do you have any questions? Jean asked.

“Oh, uh,” I stumbled. Right, I was in the middle of a conversation.

“Yeah, this place is for mutants, right?” I asked. Jean’s smile stumbled.

“The institute is for everyone,” She said. She spread her arms out to gesture before putting them down. “But yes, our clientele is almost exclusively mutant.” Almost exclusively? I would have to investigate that.

“Well, um, know any superheroes?” I blurted out. God, I get so stupid whenever a hot woman is in front of me.

“The Jean Grey Institute has no affiliation with any vigilantes or official superheroes, mutant or otherwise, but given our mission statement we do occasionally talk to mutants in the public eye.” Jean said. It sounded very rehearsed. Still, that wasn't really a no.

“Alright,” I said.

Now to get that cleavage shot. Jean is wearing a sensible top but it isn't a turtleneck and there's just a limit to how much you can cover her generous breasts. I mentally zoom in as we keep talking. First I take a small little video of her breasts jiggling as she speaks. Then I go in for what I seek. I took a very close up photo of just the top of her chest. Like her face wasn't even in the shot and really all I can see is her collarbone and the slightest peak of her breasts. Not really meant to titillate, just the natural curve of a top. Heh, titillate.

“I hope this works,” I thought. I uploaded the image. The app takes a minute to load and I get worried, but then a pop-up shows up.

Second Custom Girl Successfully Added!

I close the pop-up and immediately start looking at modifications for those wonderful breasts. Some of the modifications were the same as Ms. Munroe's, but Jean had some unique ones.

Allows people to touch breasts without consequence: 15 Gems.

Feels immense pleasure when her breasts are played with or rubbed against: 10 Gems.

Squeezes tits whenever she says “breasts” or a similar word: 4 Gems.

Still, the thing that surprised me were the costs. When they overlapped with Ms. Munroe's lists, the costs were still usually different. For example, Jean had this customization.

Increase cup size: 2 Gems per cup size.

That was way less than Ms. Munroe's 5 per cup size! I decided to capitalize on that. Four cup sizes coming right up. Once I confirmed the purchase I closed the app and sat back to watch the literal magic happen.

The change was immediate. Jean's breast steadily grew and grew. Her top started to stretch and the little implication of cleavage became a vast canyon. Her breasts became big enough that it was starting to make the bottom of her top ride up.

It was that that moment I realized I fucked up. With Ms. Munroe maybe other people would grab her ass and it would just be a weird thing she realized. But no one goes up a cup size so quickly, much less multiple. There's no way she wouldn't connect it back to me. I quickly checked awareness. I still hadn't okayed it for her yet. I decided Jean would be my control. But she would not notice the changes around her and no one else would. These breasts were just for me.

“So, um, are you a mutant?” I suddenly said to break the silence. I realized immediately how invasive that sounds. Tits just make me so stupid. “I mean, uh,”

Jean just smirks. She held out a hand to her side her and bent her fingers slightly. Suddenly a piece of paper floats off her desk and gently glides into her hand.

“I'm a telekinetic. I don't use it much but it comes in handy,” Jean said. “You'll find many of your teachers have amazing gifts. Try not to stare.” She touched the bottom of my chin and I realized my mouth had been hanging open. I closed it at her urging. “Now, Ororo will show you to your room. You have a roommate. I don't think he'll be psyched that his single has become a double, but he'll come around eventually. Classes start tomorrow. I know that's short notice but your mother wants you busy and the school year is already midway through. Any more questions?”

“Um, no,” I shook my head viciously. “Um, I guess one.”

“Yes?” Jean perked up. She moved to sit on the edge of her desk. It made her newly enhanced chest wiggle about, its braw no longer sufficient.

“When's lunch?” I asked.

---

Author's Note: Hello! I swear I'm not stealing Dogdog's thunder. We're actually collabing! We'll switch off chapters when convenient. I hope you enjoy my contributions as well. If you have any feedback, feel free to give it.