A different sibling's wedding

Twilight tried to rest in her bed, still feeling incredibly insulted by her brother's outburst at the rehearsal.

It's not that she felt he was judging her, he stated that he was nothing but supportive, but she felt like he was just too overprotective for his own good.

Why couldn't she just marry somepony without having him peer over her shoulder?!

"Is everything alright dear?" Her bride asked her concerned...

"No, I'm still incredibly upset at Shining Armor..."

"That's understandable, why shouldn't you be able to marry a mare like me?" She asked, as she wrapped her hoof around the purple unicorn.

"Cadance, it's not that I feel that Shining is homophobic, it's that he feels that I can't just marry somepony without his constant supervision and monitorization! It's as if he doesn't trust me at all..."

"Oh... Of course, I knew that. I've known Shining Armor for as long as I've known you, and he always seemed like a great guy. But THIS? Completely unacceptable."

"Really? Because I know you and Shining didn't interact that much, your focus was mainly on foalsitting me. How could you know that?"

"Well, what I meant was that I spent little time with him compared to you."

"That's exactly what I meant."

"Oh, well..."

"Cadance... Are you feeling alright? You're memories seem to be a bit hazy..."

"No they're not! I remember everything! Clear as day."

"Really? Do you remember our sunshine sunshine dance?"

...

"What?..."

"Our dance, the one we played everyday we saw each other. Something we do even in adulthood, do you remember?"

"Yes! Yes of course, our dance. It went... Sunshine, sunshine, Caterpillars, asleep?..."

Twilight stared at her bride suspiciously...

"Well, it's been fun but I really have to continue preparing for our big day..." Twilight's bride declared, as she opened the door with green magic.

"What happened to your magic?"

"Huh?"

"Your blue magic, it's green now..."

...............................

Twilight begun to place the pieces together...

She misremembered her interactions with Shining Armor, she doesn't remember their sunshine dance, and her magic was now green...

"My Celestia... You're not Cadance! Who are you and what have you done with her-?!"

In a fit, "Cadance" casted another spell on the purple unicorn, she tried to resist it, but it was no use.

The spell took a grip on her mind, as she fell into a dazed trance...

"Your bride is right here, my dear. Everything is fine, isn't that right?"

"Mmm hmm..." Twilight mindlessly nodded her head.

"Perfect, now if you'll excuse me, I have to prepare our special day..." "Cadance" stated, as she left Twilight standing there, not doing anything...