“Apology accepted,” she breathed. “In any case, I believe I’m going to go out to sample the fair Ponyville has to offer; might you have any recommendations?”

That would be fare

With a mane of sapphire hues and a silvery coat, he looked absolutely stunning . His eyes were like a pair of blue opals, contrasting sharply against the amber scales over her muzzle and back, and the sight of himself was enough to evoke another spontaneous giggling from him.

Did you know that "opal" is thought to be derived from the Greek word O"pallios", meaning "to see a change of colour?

A bit cruel of her, Anon didn't do it maliciously and apologies multiple times, if she really did give him the potion as a gift that's even worse, considering that giving something that changes your species and gender without saying it does that, doesn't sound like a gift, it would be better if Anon was more cavalier in his attitude on what happened to give a better reason on why she did it, not great IRL but good enough for fiction, or maybe have Anon drink it without her offering it and him taking it, would make it more deserving

Well maybe I'm reading too deeply into this, as this doesn't have a drama or dark tag it's probably going to end well

Also Anon is stupid for drinking random probably magical drinks, without asking what's in it

And then the kirin were wiped out by Equestria in the ensuing war.

Yeah, this story is truly stretching credulity. I mean most stories have some sort of believability to it. This is plain off its rocker.
Comedy? Okay. Anon? Pfft!

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You're almost as big A Nerd as **I** am, bwahahaha!!

Talk about having a wild night

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Is it really so hard to beleive a foreign culture with foreign values would be willing to offer Anon a different "perspective" in a literal way?

Her metamorphosis has apparently given her an inane ability to control the magic she wielded

Whoops! That should have been "innate".

Neat

When Rain left Anon's room I expected her to 'help the mare out' by bringing in a stallion.

This is a interesting story so far can't wait to see where this goes.

This chapter was disorienting. I get that Mr. Human was drugged and transitioning, but the flipping back and forth with the pronouns was unnecessarily confusing. There is a point that he changes to she, but you go back and forth and back again. He only swapped genders once.

He may not have been sporting a pair of tits like Milky Way, a somewhat notoriously busty mare in Canterlot, yet his breasts were quite respectably sized.

Milky Way: "Don't be ashamed about this. No one can match me!"

As he inspected himself in abject awe, he yelped and wheeled around when he noticed a sudden movement from behind him.

Maybe he will soon start chasing the intruder, only to eventually realize he was chasing his own tail all along.

As she planted her hind legs and arched her back, allowing herself to get into a more comfortable position, she bucked into her hoof and succumbed to her lecherous impulses.

Should be "leecherous". Not because it's semantically correct (because it isn't), but because it sounds better.
Especially considering who the author is.

“H…hey,” she croaked, obscenely cocking one hind leg and giving Rain an unfettered look at her sopping-wet loins, “wanna help a mare out?”
Though Rain said nothing, her eyes drifted down Anon’s body. The barest smirk split her muzzle, her tail raised slightly, and she gave a faint grunt of what sounded like approval as she turned and trotted to the exit.

Rain: "Mission accomplished!"
(I don't know why, but this paragraph was somehow hotter than it had any right to be!)

Good chapter!
I enjoyed reading it.

If you pay attention you'll notice how he slowly starts using she instead of he, until he she finally comes around.
And now I wonder what her "plan" is. Somehow I suspect it involves the rest of Ponyville...

i swear i'm going to kill that witch!

like, she just took The humanity from anon!