Then Isabella can get in a little more shooting before Mercedes announces the end of the club!

Katarzyna hands back Isabella's stardarter and ammo. "Thank you again for the loan." 

"No problem! See you next week!" And she collects her bag (it's like a messenger bag, but designed to sit between wings in the back) and takes off.

Katarzyna stands there for a minute being happy for no reason she can figure out for a minute before heading back to the St. Lucia car. 

When they get back to the school, the first thing she does is hunt down her sister to talk to. 

(It's not gossip if it's the core of your introspection process, right?)

She outlines the club meeting (thus and such was the agenda, this is what my power does) and then launches into details and internal monologue. 

It isn't until about the fortieth Isabella this and Isabella that that Jaromira starts giggling. 

"What?" 

"I guess the magic gay kicks in harder than I thought! You, my dear sister, have a crush." 

"Oh, shit, I have a crush on Isabella." 

"That's what I just said! And why, exactly, is this a bad thing?" 

"I don't want to be one of those people who only hangs out with someone because they want to date them!"

"Then don't be. Ask her out, or don't, but--if she doesn't go out with you, would you stop wanting to be around her?" 

"No!!! She's so thoughtful and interesting and insightful and--she's amazing, Jaromira, amaaaaaaziiiiiiing." 

"Then you're not like that. Don't stress out about it." 

"Mngh." 

She flops on her bed face-first. 

"I can't believe it's a week until the next meeting and I didn't get her phone number or email or anything." 

"Aww. You'll live, dearheart," Jaromira says, sitting down beside her sister to pet her hair.

"I knoooow." Sigh. "Okay, I have my hair-related notes from the meeting, let's try some things--" 

They try some things. 

The hair length thing turns out to be less good than keeping it partially up in a hair-flower-thing with gems woven in; of other things they try because Jaromira thought of them, replacing the leg laces on her sandals with helixes like her bicep bracelets, adding toe rings, and turning all the metal in her jewelry into diamond and opal of the same colors constitute improvement. She is mildly put out that she will not be able to see the effect this has on her magic sense until next week when she can interact with other magical girls again. 

She emails her father to inform him that she is a magical girl now. She looks up stardarters online. 

Ones like Isabella has are $200 and come in custom colors; for extra you can get an emblem or other little touches added to them.

...Ooh. 

How much would it cost to get them in opalescent seafoam with blue and silver filigree?

Opalescence is extra, and the coverage she has in mind is a lot extra on top of that, but she can still get them both for under $500.

She goes for it, then, and selects the electronic receipt option at checkout and then forwards it to her father with a note saying that while of course she will not neglect her studies she also intends to take being a magical girl seriously. 

Her stardarters arrive in four days, pleasingly packaged and very shiny. The ammo is heavy.

Katarzyna has a fight with the school administration over them, due to weapons being Not Allowed on school grounds no matter what. 

Katarzyna does not win the fight, exactly; weapons are still Not Allowed inside the school no matter what. But she is stubborn and while she isn't good at people Jaromira is, and is on her side. The stardarters and ammo live in an equipment shed, to be picked up when she leaves for a magical girl meeting (...or for other reasons, if she really wants, the administration is worn down into conceding) and returned when she returns to campus. 

It's not optimal, but it will do. 

Katarzyna spends much of her free time studying, now, but less. 

Flying is not against the rules. 

Flying is great! Depending on how far afield she wanders, she might encounter other girls in the sky (as well as kites, RC airplanes, and balloons).