Dave von Lerche the 25th was just some low class bit of pale trash who was given a name that probably would've sounded somewhat royal on Earth quite a few centuries ago. The pale 13 year old with barely any body hair and shaggy brown hair in his sleep pod was dressed in a blue suit uniform with a school emblem on his left chest. All 3D tailored on his body as he was asleep, and as the sleep pod automatically drained the waste out of his body and filled his body with all the nutrients he would need for the day. Finally the sleep pod sent out a small pulse which instantly awoken Dave who was fully rested.
He simply stepped out as his little sister, mother, and father walked out of theirs into their cramped 7x7 foot sleeping chamber. It was mostly barren without even a window, just 4 sleeping pods and a door that the whole family walked out of into their 3 story mansion of a bottom of the rung poor family shack. The world was on the outskirts of known space, and the robots had a lot of raw materials to make things out of. So while the Lerches were poor as they were pioneering settlers they were well compensated with a lot of living space, and had their basic necessities taken care of. Although not much else as was shown by how the rest of the house were barely furnished and the fact that while the sleeping pods had nutrients they didn't have actual food or water consistently enough to have a kitchen, mini-fridge, or anything that would have to do with food outside of a dining table which they mostly just used to sit together with in their work and school chairs.
Dave von Lerche the 24th was in his Ad testing job, His wife Jane Saturn was working as a virtual pre-school instructor, and Dave von Lerche the 25th and his sister Jane Saturn Lerche were in their virtual schools. With time dilation school and all it's work was finished within an hour, but sadly for the father who earned very little watching ads needed to stay inside the job seat for a long time to make any actual money. Similar issue with his wife who was baby sitting the kids for a whole Earth day, but at least instead of watching inane commercials for a long time was able to enjoy some of the entertainment the little kids got as she watched them. Dave and 10 year old little sister with adorable blonde pigtails got out of their chairs a full days worth of learning completed. With the 8 hour sleep and 1 hour of school that left 15 hours for Dave the 25th and Jane Jr. to go about their day on the frontier world however they wanted... with basically no budget.
Dave however had made a weird discovery during his coding class, and while he was compiling some weird recursion program to work with some obscure web address he had set up. He however had made a few big issues considering the recursion program was set up badly and the web address he had set up was typed in incorrectly. The actual web page he typed into went directly into the super intelligent A.I. mainframe, and the recursion program ended up breaking through the security somehow. His errors and dumb luck had given him access to the A.I. that controlled the nanobots inside everyone, and as it turned out the initial designers made the A.I. to be accessed by humans with a very streamlined interface. Heck you could even tell the A.I. commands. Inside the system Dave being a guy who was just getting into the female form asked the A.I. to grow breasts on a planetary scale by 4 cup sizes for women. However when Dave got out nothing seemed to have changed.
"So Dave you recently turned 13 so... Do you think you'll be getting a part time job?"
Dave considering it said "Possible... I'd like to have one in real life though. Maybe I could get a job at one of the grocers. Then maybe we could actually eat."
Jane grinned and said "That would be great! Let's go now and see if they have a job opening!" The two siblings went to the grocery store which did have a help wanted sign. Entering Lisa's human grocers Dave was able to get an interview. Dave and Jane sat in the guest chairs in the office and on the other side of her desk sat the fashionable Lisa who in fact was rich enough to hire humans instead of just automating everything exceedingly cheaply. She was a philanthropist that way.
Lisa asked "So Dave... you brought your sister here and did she want a part time job as well?"
Dave shook his head and said "She's still too young, I just needed to bring her with me today." The little sister very curious what it was like in the office and wouldn't leave his side.
Lisa said "Alright, so Dave what would you like to do here at my Grocery?"
"I would like to... Restock?"
Lisa said "I'll let you Restock, but most of the time you'll probably be asked where something is. When a customer comes for assistance you do whatever they need ok?" Dave nodded and Lisa said "Great, by working here you get a discount on the goods here along with a salary of..."
The optic implants of everyone in the room started acting up as a computer window appeared in their vision saying "Due to a certain health study we would like to do involving breast milk the female population of your planet are having their breasts grown immediately."
Lisa muttered out loud "What th- WHA!" as the nanomachines in her body started gathering stored energy and matter creating more matter in Lisa's breasts.
"AAAHHH!!! THIS HURTS!!!" Dave looked to his side where Jane was clutching her chest which was growing as well. Lisa was having some issues with her clothes, but her clothes were a little more elastic than Jane's. After all Jane's uniform was developed specifically for Jane's exact measurements out of somewhat rigid material, and as she was prepubescent with her estrogen levels regulated to keep her a cute girl her chest area was designed to be nice and flat. Jane and Dave quickly found out that her breasts growing 4 sizes made it really easy for them to burst free from her uniform whose front tore open. Dave's face was flushed as her sister had a marvelous pair of tits out in the open and looking to Lisa he saw a flustered extremely buxom and beautiful woman with a really tight top.
"It actually worked, but it took awhile... and what was that about milk?" Dave thought as he mentally booted up the A.I. program and asked it to make another planetary change. Females permanently lactate and this time the prompt came up rather quickly.
"As the changes to breast size came out smoothly we will go forward with the production of human breast milk. Feel free to ask your grocer about selling your excess breast milk." Lisa and Jane looked like they were going to die as the nanomachines stimulated their breast glands.
Dave had a random thought "...So the first one took awhile as it was hard for the A.I. to justify growing everyone's breasts on the planet, but the second one was probably faster as that was the justification for growing everyone's breasts... Maybe I should try some changes to individuals next?" and then was brought back into reality as the woman and little girl were gasping as one felt a new feeling from her breasts as milk started to flow out, and the other was experiencing what it was like to have boobs in the first place.
Lisa gasped out and said "We'll continue the interview later, I've got your contact information so I'll call... Don't worry about this crazy new thing... It couldn't have possibly been your fault."
Dave the 25th however wondered what else he could do with this new power, and if he could tell anyone about it?