Gleaming Vacation

Shining Armor nuzzled against his wives mane as she cuddled against his side, “So, what was your idea?” he asked as he ran his hoof along her back.

They had for the first time in month managed to get away from running the Crystal Empire. Now they had a full week away from anything and anypony.

Cadance had planned it all and had them set up in a penthouse in Manehattan under different names, she had even worn an illusion and cast one on him as well on their way there, which he more than understood as it was needed to get away, but she had been mighty coy about the entire thing and kept everything but the most basic things hidden away. He had not even known where they were going until they got on the train.

But she only got this coy when it was something kinky she had in mind. Last time she been acting like this had been for his last birthday and then he had returned from a Guard inspection to their private quarters to find her waiting for him with Princess Luna, both of them wearing both provocative outfits.

He couldn’t help but smile at remembering that evening as he nuzzled at her ear.

Cadance smiled playfully, running her wing across his back, “Excited?” she asked and then nuzzled back, “Or nervous?”

“...Kinda both?” he admitted as he eyed her, “What’s going on in that pretty head of yours?”

“Well…” she cooed and nuzzled, “I have something for you,” she answered and floated a small vial of pink potion over to him with her magic.

He blinked at it, “What is it?” he asked with a small frown.

“That, my wonderful husband, is a x-change potion,” she cooed, “Once drunk, it will turn the drinker into a sexy mare. This specific one will last for just under a week… and may have some extra things as well.”

Shining Armor blinked at her in surprise, “...What?”

Cadance smiled and nuzzled, “Come on, it’ll be fun. And Nopony will be able to tell it’s you anyway. Trust me, it’ll be fun.”

He eyed the position nervously, “...Well, as long as it’s temporary…” and took it in his magic. Pulling the cap off, he smiled at her nervously before drinking it all down.

“...Strawberry,” he said and then gasped as tingles started to run through his body and he squirmed, groaning and shuddering as Cadance pulled him closer, stroking his back with her wing.

“Did it work?” He finally asked as the tingles stopped before he gasped at how light his voice was. He scooted back slightly from his wife and looked himself over.

Herself over.

Sitting up, she looked herself over. She was still a white coated unicorn, but instead of his normally muscular physique she was thin and slender, her mane no longer blue and instead long and pink. She shifted and looked to her flank, her cutie mark was still the same.

Swallowing, she turned to look at her smiling wife, “S-so… how do I look?” she asked nervously.

Cadance smiled and moved in to nuzzle softly, “You’re a very sexy little filly,” she teased and then shifted to kiss her softly.

Shining kisses back and felt herself melt into the kiss as she shivered in unfamiliar sensations, pressing deeper into the kiss, arching against her.

Cadance broke the kiss and smiled, “I’m thinking… Gleaming Shield.”

Shining blinked at her, “H-huh?”

“The name. Can’t call you Shining Armor like this, can I?” Cadance teased her.

Gleaming Shield blushed at that but nodded, “I-I guess that’s right. I guess Gleaming Shield works.”

Cadance smiled and nuzzled in for another small kiss, “Now, there are some things with this you have to remember. But the most important one is to not get pregnant.”

Gleaming blinked at her, “...had not planned on it.”

“Good, because that makes it permanent,” Cadance said seriously, “So be careful with that.”

Gleaming cringed and nodded, “Anything else?”

“Not if it had been a normal potion,” Cadance said and nuzzled her softly, causing Gleaming to look at her in question, so she continued with a smile, “As you might have noticed, you are looking a bit different?”

She then giggled at the look that earned her, “As you might have noticed, you are looking a bit younger than you are. This specific one turn you into a mare, as you would have looked if you were one when you were eighteen.”

Gleaming blushed, “Oh?” and then nosed softly at her, “Wanted a sexy little filly girlfriend for the week, huh?”

“Could be,” Cadance said and stroked her back with a wing, “Or I drink this,” she continued with a smile, holding another small pink potion vial in her magic, “Which turn me into your twin sister.”

Gleaming felt her cheeks burn with a deep blush.

“I did see those books,” Cadance admitted, “You know, the ones you have hi-”

“A-alright! Alright!” Gleaming said quickly, “W-why didn’t you say anything?”

“Because there is nothing wrong with fantasies,” Cadance said and gave her a small nuzzle, “And… I wanted to surprise you with making it possible. Want me to?”

Gleaming Shield kept blushing deeply but managed a small nod.

Cadance smiled and then tipped the potion back as she drank it all down in one swallow. Cadance shivered at the taste before she shifted. She shrank and while her coat remained pink, her long hair turned pink, making her the opposite of Gleamings pink mane and white coat.

In just a few seconds, Gleaming found herself looking at a unicorn mare that looked identical to herself, just with pink coat and white mane instead of white coat and pink mane.

Cadance looked herself over and then smiled and cast a quick spell over her cutiemark, making the crystal heart look like a red one instead, “There, what do you think… sis?” she asked, fluttering her eyelashes at her husband. Or now wife.

Gleaming Shield blushed and then answered by shifting closer and leaning in to kiss her softly, her soft lips moving against her ‘sisters’ as Cadance shifted closer in turn, running her tongue across Gleamings lips.

Gleamings tongue met hers and she couldn’t suppress a small moan of need before whimpering of disappointment as Cadance pulled back and broke the kiss.

“Not yet,” she cooed and then nuzzled softly, touching her horn to Gleamings, “We’re going out today.”

“W-we are?”

“Mhmm,” she said and then stole another small kiss, “We are dressing up and we’re going to a club. And if you are a good girl and sell that we are sisters, we can play when we get back.”

Gleaming swallowed, “A-and if not?”

“Then…” Cadance whispered into her ear with a small nuzzle, “You can watch me with a toy instead, but not touch.”

Gleaming blushed deeply and felt her ears fold back as she swallowed again, “T-that’s… “she managed to say before she looked to her wife, “I can do it… sis.”