"Could you make me younger?" Carla asked.
Dr. John said "No I cannot... At least not yet. This isn't magic where age is some easily accessible value. Age is very complex involving a lot of things, and while I can give you the appearance of someone younger your actual age is something I am not currently capable of changing until we get a larger sample size."
"Why's that?"
"Well It gets less complex if we take the body of someone younger, copy the data, and reskin most of that data into a different form." Dr. John saw that Carla had an uncomfortable look on her face. Thankfully that was easily remedied as Dr. John went through Carla's data and found her memories... Just erase everything that happened in the last minute or so and-
"Huh? What just happened?" Carla wondered "I just kinda jumped-"
"Looks like a small glitch in the test chamber... I'll need to figure out what caused that. No more editing for now let's get you out before you accidentally clip into a wall or something." After a few clicks on his computer Data Carla vanished from the virtual testing chamber as her data was being loaded into the Virtualizer. The machine started gathering it's energy and matter and in a bright flash a lovely naked woman materialized inside and stumbled a little as she wasn't prepped for popping into existence especially in a pretty unfamiliar form. Dr. John opened the Virtualizer chamber then said "Well Carla that's your body. I'd suggest examining yourself. Make sure everything came out right."
Carla was covering her body and said "Umm... Right..." still not used to her new voice... her new breasts and new everything... Obviously her old clothes didn't fit very well, but everything felt about right. She still sweat and salivated... Going to the bathroom... Well she could still go to the bathroom properly. Carla seemingly healthy was released, and was even given a small stipend to get some new clothes. Back at her old home and having some more time to look at herself... Well there was a few things she may have wanted to tweak, but for what she wanted to do... Well at least her face still looked like hers... just a lot more feminine. She grinned thinking about what she'd do with her new body as she texted someone for a meet up.