>>279867914
The trouble with "chubby" is that it's just not a statis option, not really. Most of the time, if a girl isn't keeping herself thin she's going to be getting fatter. And once she's "chubby," she's probably not going to STAY that way.

I suppose in theory you could try to precisely calculate a caloric intake regimen designed to keep a girl at a certain weight, and apply it to your chubby waifu.