2 days

The previous days and nights were a challenge to Mane's short fuse, along with Pinkamena's stubbornness.
Teaching a psychotic mare to behave in public was like convincing a foal to eat the veggies at dinner, let alone how to behave in a gala.

From walking coordination to how to speak with high class figures. Mane's youth came helpful in that phase, considering his days on the Crystal Empire and great part of It in Canterlot, with enough galas seen to teach her the basics.
She started to accept It, bit by bit, considering she had an objective ahead of her, which she decided herself.

"Again. How do you greet an high class mare?"

"Goodnight Miss..." - She said in ha smooth tone, such smoothness that made the colt shiver in a positive way.

"You're going well, Diane... good job. Next! How do eat and drink in a high society event?"

She grabbed the apple and gave a small byte, and chewing it slowly, letting the sweet flavor empathize with her mouth. And then, grabbing the glass of water, and with the same procedure, taking a small sip.

Mane smiled, showing her she was doing great with her training, filling her with confidence.
Pinkamena diverted her eyes to the switchblade at the end of the table, and the colt could read her thoughts.

"I know, I know... we will get there eventually. The only thing we need is the dress, to check a way to hide It. Then we can train the method."

Moments later between the the session, a bang on a wooden surface was heard.

"I'll go check." - She stood up from the chair, and in the way out of the room, she gets possession of a cleaver.

That kind of behavior, Mane couldn't decide if It was sick or normal. Giving the circumstances he started living with a psychopath with a lust for blood, even if he changed her, that lust was still there and he knew It. The only thing keeping him safe from her was her gratitude and self-control of her new self.

She returns with a package, and drops It on the table.
"It arrived!" - She said loudly in her happy mood.

"Speaking of the devil, I guess..."

"Can I try It? Please! Please! I never tried or saw a dress before!"

"I'm not blocking you."

She took the package to her new renovated bedroom, now with a better bed and furniture, and the scribbles erased from the walls. The gasping and giggles could be heard from behind the door, leaving Mane in wonder.
Times like these, he starts meditating about his decisions and thoughts.

*Did I do the right thing..? I could have redeem the others too... and instead, I choose her. Maybe It's my destiny. Just like the task They gave me. Clean this world, but the methods were not discussed... Would this make Celestia happy, and maybe be forgiven..?*

The bedroom door opened, and she walked out slowly blushing, not being used to those things, let alone It was her first time in such clothes.

It was long, crafted by a master. The black tone matched with her nature, and along with It, leather boots that resembled Mane's jacket material, tied by a yellow bright rope, reminding gold treads from Celestia's dress.
The dress was simple, black silk covering her dark pink color along her slim body, showing her head which part covered by a black lace veil, decorated by a silk red rose by the left side of her forehead.
It was beautiful...

"Well... how do I look..?" - Pinkamena asked in a low voice, covering her blush.

Mane Shaker was completely stunned in his place with his jaw dropped.
He always had a weak spot for gothic mares, and seeing Pinkamena in a dress like that, he was lost in words.
It was like a wending dress at his eyes.
The more he looked into her, the more he couldn't resist in saying some words.

"I look awful, I know..."

"NO! No!... I just... ah... I can't..."

"What?"

"You look... gorgeous..."

One word was enough to make her smile slowly. She walked more to the middle of the room, and stood on her bipedal pose. The dress was really made for her. Lil Miss Rarity had everything in mind. Her nature, color, including what she could do.

"And Mane! Look at this!" - She grabbed the switchblade and putted inside the silk rose in her forehead, the weapon was completely hidden

"She really though of everything, eh?"

"Looks like It. I like the boots too... It's weird but then you get used to."

"It's like wearing a jacket all the time, considering we don't need these clothes all the time..."

"Indeed." - She agreed - "But I never use clothes all the time, like you."

"Hey, It's a leather jacket, don't compare to a full dress."

"Well...this is also different from a skin apron..."

"I guess..."

They stood there gazing the beauty of the dress, until they noticed the clock. Three hours to midnight, and then the gala would be twenty four hours away.

"I think we should hurry..." - He notified in a paused tone

"I agree..."