A couple of questions...
Is she dead set on a 9mm?
Is this for personal protection and/or range use?
Is a revolver out of the question?
The reason I ask the last question is that there's absolutely nothing wrong with owning a wheelgun, and if there's any shortcoming with grip size and feel, at least a revolver has more options (with aftermarket grips), to accommodate for smaller hands.
Also with a revolver, she could go with something chambered in .357 mag for defensive use, and have the option to use .38 special for range use.
One last question (and word of advice),...
Is she paying for the firearm or is this a gift?
If the latter... don't walk into the gun store, have her pick out the one she wants (and asks your advice), she fills out the form 4473 and you hand the dealer the cash.
There's nothing wrong with you two doing that (it's all perfectly legal as long as both parties aren't prohibited purchasers).
It's just one of those things that antsy or cautious FFls might give you a raised eyebrow or deny the sale about.
Give her the cash beforehand or afterwards then let her thank you in the morning.
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