What rules do you make to change the lives of petite women like Christina?

A petite world

Your girlfriend had always been self concious about her height and size, so why not try to remove that as a source of anxiety? Not just because you've got a fetish for petite girls. Honest.

Old Rule: Human sexual dimorphism means that women are almost always smaller than men usually topping out at somewhere between 4ft and 5ft.

Old Rule: is it extremely rare for human breasts grows beyond AA, butts are also likewise flat and firm.

And why not add a little more?

Old Rule: females cease physically aging at the age of 19, outside of some brain development.

You set your the rulebook down and observe your surroundings and sure enough, all the women and the shop are tiny and flat. It's honestly kind of unnerving how nobody sees that things have changed. The universal pig tails are also kind of annoying now. Yeah, you'll scratch that rule out real quick.

Anyway, let's see how your girlfriend has been getting on.

"How's things been at work?"

She raises an amused eyebrow and shrugs, "Pretty good, not much has changed I think I might get that promotion soon!" That's a change, when last you spoke about this she had apparently been passed over for a bustier, taller co-worker.