Sounds like the chapter intro "Crime Pays," p. 5, Vice. The main characters in the story are Pistons, her sister Bette, Bette's twin children, and /dev/grrl. At the end of the story, Pistons refers to /dev/grrl's parents worrying about her. It's possible that Pistons and Bette are /dev/grrl's aunts, but I think it's more likely that they're just close family friends. Also, /dev/grrl is old enough to provide medical supervision for long-term VR, but young enough to need a babysitter. I'd estimate 10-12 years old.