“Guh, I simply cannot believe it...” - grunted Luna, closing the door and kicking her boots off in irritation. - “Tia! I'm home!”

“I'm in my study, sis! C'mere...” - came the reply from the depths of the house, and Luna grudgingly made her way to the defined destination.

What hit her as odd was that her the blinds were closed shut; Celestia always preferred her quarters to be flooded in bright light. Now it was dim and dusky.

“Oh, sis, good to have you here...” - cooed Celestia. - “Pass me an ashtray, be a dear?” - Luna was dumbstruck at the sight of her sister: her usually pristine, flowing hair were now unkempt, as if she just negligently sprung it up with both hands, and the fact that she was laying lazily in her armchair... with a glass of whiskey? Biting off the tip of a large Havana?!

“Tia?..” - Luna cautiosly inquired, passing a bronze-cast ashtray to her sister. - “You feeling alright, sister?”

“Why, I feel awesome...” - she giggled, lighting a cigar with a match and dragging deep. - “Can't a girl indulge to her small guilty pleasures?..”

“Why yes, but...” - Luna stopped abruptly, noticing that Celestia crossed her legs over one another at the armchair's arm post, feeling a familiar envious tingle at the sight of her sister's long, slim, alabaster-white legs; she had always envied how long and slender her sister's legs were, and the short silk bathrobe gave her quite a look.

Well, she herself wasn't much different in terms of physical fitness, but she was shorter than Celestia...

“Nevermind...” - Luna shook off the shock, returning to the more pressing matter. - “Tia! We need to talk!”

“Go ahead, little sis...” - purred the lady, taking a sip. - “What's on your mind?..”

“I just heard it from a grape vine that you've pulled an intricate scheme... All that concert, fundraising and stuff...” - Luna just choked at her righteous fury, as she had seen Celestia's smug grin. - “What for, sis?! What for?!”

“That was smart, wasn't it?” - the principle of CHS giggled, pulling deep on a cigar. - “Come on, sis, admit it!”

“Well, yes, but... wait.” - Luna raised a hand, milling what she had to say in her mind. - “Let's not ramble and get this straight: you pulled money from the school budget...”

“Exactly...”

“...to pay some fraud...”

“Technically, he's a veteran mercenary and a professional con artist...” - nodded Celestia, swirling the drink in her glass. - “But yeah, you caught the drift!”

“...so that he'd run some devious revenge plans of yours?!” - Luna fumed with anger and surprise.

“Guilty as charged.” - laughed Celestia. - “What? The fundraising went smooth!”

“Yes, I can't deny that – and I won't, but – Tia, isn't that a bit extreme?! I mean, getting back on Cinche is one think – I can't stand that hag, too, but Mayor? What has she ever done to you?!”

“There are some things I'd rather not speak about, Lulu...” - cooed Celestia. - “Let's say I've let sweet Cadence to try and stand in charge of the Crystal Preps; I'm sure she'd do nice, and also I've made Cinche eat a nice hot serving of a humble pie, so it's a win-win... And also I've had tons of fun, so make it triple win!”

“I... I just...” - stuttered Luna, dumbstruck at the scale of her sister's deviousness. - “I... I guess that explains why people sometimes dub you 'Trollestia'...” - she exhaled, drooping her head in defeat.

“That's exactly why I call the shots, dear sister...” - smirked Celestia, downing her drink in one swig.

Le fin.

Author's Note

Well, that concludes this not-quite-oneshot; I just recalled the fun I've had with the Stainless Steel Rat book and an idea sprung in me noggin; so, two nights and this one sprung up.
Enjoy.