The problem with trying to get a national heroine caught up in a scheme or two is that the authorities might, might catch wind of those transgressions.

When those authorities are represented by Princess Luna, alicorn princess of the night and dreams, it becomes less of a "might" and more of "I should consider leaving the country".

She delivered an ultimatum: The next thing (be it a product or a service) they offer absolutely has to perform as advertised as a minimum, and the slightest hint of unethical practices (business or otherwise) shall be thoroughly investigated and severely punished.

(Everypony figures that that is likely "to be sealed in a comet or something for like a thousand years", but they are too afraid to ask).

If anything, both unicorns have a great ability to detect opportunities, think outside the box, and overall business sense; the ability to convince others helps, too, since they needed ponies that actually knew what they were doing.

With the help of such illustrious and skilled equines the likes of Doctor Time Turner Trotsworth Whooves, Vinyl Scratch, Zecora, and many more acquaintances of the princess of Friendship herself, the newest brew by the Flim-Flam Brothers is ready for testing! A cause for celebration with some hard cider!

Too bad they created the wrong potion first.

WARNING: Transgender transformation, a pony waking up with a hangover after being black-out drunk, mentions of pregnancy and the events that caused said pregnancies, bisexual sex, nopony thinking there's anything weird with the arrangements, angry mares threatening to geld Flim, lactation, Flim and Flam considering their life choices, may contain traces of chocolate, fabricated by equipment that also processes peanuts and assorted nuts.

Created for the October 2017 Crackship Clopfic contest, so don't expect any rationality here!