Hmm... Maybe by working out?

Occasional visits to a walk-in mall clinic, with injections and an IV for the day dropping all SORTS of semi-nice material into her, including nano, to rebuild her from the bones out. Also comes with a nifty implanted RFID chip and a butt and boob tattoo that reads "Warning: Nanoactive Blood, Do Not Transfuse" Also means eating specific supplements for the better part of several weeks while the growth kicks in, and dealing with the low-grade fever and necessary high caloric intake thus produced.

I really should have posted a visual picture link to drop box before actually asking ^^

https://www.dropbox.com/s/6gi148e8r.....a_002.jpg?dl=0

Still a valid option. I mean, basically, character gets buffed up. About right for the minor height difference too. Interested in the body choice there.