Gleaming Sparkle

by MetalJrock

Rating: mature
Tags: Romance, Comedy, Random, Shining Armor, Sex, Twilight Sparkle, Slice of Life, My Little Pony: Friendship is Magic, Alternate Universe
Length: 1926

Twilight decides to let Shining Armor in on her dirty secret. Or Gleaming Shield in this instance.

Twilight Sparkle's mind grows ever curious. She already has an illicit relationship with her mother, Twilight Velvet and she wouldn't change it for the world. But she wished she had the same bond with her brother.

Shining Armor wakes up to find things have changed. Or, as he was known as in that moment, Gleaming Shield.

Perhaps she can fulfill Twilight's fantasies.

Warning: Incest. Genderbent Shining Armor. GleamingSparkle aka ShiningSparkle. Implied VelvetSparkle.

Published 2017-05-16 00:10:01 UTC
Last updated 2017-05-16 00:10:01 UTC

Sibling Bonding

Shining Armor awoke in his bed. What was weird to him was that Cadance wasn't with him and the sheets were raised, as though she had to leave for something. The unicorn shrugged it off, thinking it was to take care of Flurry Heart or princess duties.

So, the unicorn stretched once he got on all fours, but noticed something felt... off about himself. "Hm..." he said. His eyes widened and out his hooves to his mouth. Despite being the source, he could tell that his voice sounded different. It sounded more... feminine.

Obviously confused, he ran to the nearest mirror. Once he saw his reflection, he shrieked, nearly shattering the crystals upon the sound of his new voice.

"AAAAAAAAAAAAAHHHHHHHHHHH!" a slow inhale, "AAAAAHHHHHHHHH!"

Except he wasn't a he anymore.

Shining looked at his curvy body, his eyelashes, his muzzle, his blue mane now dropping lower than before. He was a mare now, somehow. He, or rather, she growled to herself, holding her mane in confusion and frustration.

"Cadance!" she screamed.

Storming across the halls, Shining noticed that the Crystal palace was empty. Not a guard in sight. And what caught her off guard were the petals lying about on the floor. She assumed this was one of his wife's unique methods of... bedroom playtime experimentation. The Princess of Love had needs after all, and he was willing to comply.

At last, Shining arrived at where the petal trail ended, seeing a door slightly creaked open, being the only source of light in the other room from what it appeared. Shining lightly pushed the door open and looked at the candles lying around. Her head looked around, wondering what was happening.

She didn't anticipate who was on the bed. She had a lustful look to her face, gesturing to lie down next to her as she was lying down in a sensual position. Shining noticed it wasn't Cadance.

"Twily?" Shining asked.

Twilight smirked seductively, batting her eyelashes at the new mare, "Yes, Shiny? Or should I say Gleaming Shield?" she cooed quietly.

Shining, or Gleaming now apparantly turned his head swiftly, "What are you doing here? If Cadance finds out about this--"

Twilight giggled, "This was her idea, BSBFF. Cadance put the spell on you and told me to wait here for you to show up. She, Flurry and the guards are out dealing with other matters. So we have all this to ourselves..." she revealed. This made Gleaming fume slightly. "I thought... maybe I can spend precious time with you. In a different manner so to speak. A way I've been wanting to for a while."

Gleaming scoffed, "Are you... Are you trying to... seduce me?"

The alicorn smiled, sitting up, "And what if I am, Gleamy?" she purred aloud, rubbing the comforters of the soft bed.

Gleaming blinked in disbelief, 'What is even happening? My own sister is trying to screw with me! Literally! And turned me into a mare as well!' her eyes narrowed, before getting a closer look at her sister. She noticed how Twiight's eyelashes fluttered with each slow blink, a confident smirk on her features. She hadn't seen this side of Twilight before in her entire life until now.

Her white face began to flush red at the sight, taking a lone hoofstep forward. The alicorn licked her lips, anticipating each movement closer towards her. Gleaming had no idea what she was thinking. This was her sister! She was supposed to be her overprotective big brother. Well, she would be again once the spell wore off.

Then again, she always admired Twilight's beauty and brains even before meeting Cadance some hears ago. Shining was the only stallion in her life before moving to Ponyville, and it seemed it was more than a familial love on her own end. 'Did I... Did I just think that Twily was hot?' she asked herself.

She took a few more steps, doubt beginning to fade from her mind instantly. She looked at Twilight closer and saw something radiate from her. A want. Not forceful, but rather she wanted somepony as an equal. "Did you put any spells on me, Twily?" she finally asked aloud.

Twilight frowned and pursed her lips, "Of course not. I would never do that." she assured.

Alas, Gleaming Shield sat upon the bed Twilight wished for her to reach, propping herself down next to her sister. A moment of silence was passed among the two. "So..." the unicorn began.

"So?" Twilight repeated.

"Why me?" Gleaming finally asked. "Why the spell? Why do all this?"

The alicorn sighed after another awkward pause of dialogue, "Because you're my BBBFF, or in this case BSBFF. I uses the spell because... Because I'm into m-mares." Gleaming thought nothing of that confession, "I've always loved you, Shiny." Twilight hugged her now sister as she confessed her heart out, "You were always there for me in more ways than you think... Sweet Celestia, even as a mare you're amazing to look at though." she complimented, causing Gleaming's face to turn red in embarassment.

"I just love you, Shiny. For being you and I just wanted t-to show my appreciation."

"I guess... I just wanted something more than what we have," Twilight realized. "But only if you want to."

Gleaming held her sister's hoof, "Twily.." she began in a slow tone, "If it'll make you happy... If I make you happy, whether stallion or mare. I'll make sure you remain like that for as long as I can." she decided, hugging her sister again.

Twilight smiled, "Thank you, Gleaming."

Clearing her throat, Gleaming noticed that Twilight had her hooves gently held around her shoulders and that she was leaning in, with her own hooves holding the alicorn's curvy waste. Their breathing was soft as they inched closer to each other, feeling its warm hit their face. The older unicorn didn't fight the feeling and instead tilted her head until Twilight kissed her at last, finally closing the distance.

Gleaming immediately noticed something different compared to kissing Cadance. Twilight was more excited in the action, running a hoof down her chest and moaning as loud as she could. She felt something flick her bottom lip and opened her mouth wider, feeling the alicorn's tongue roam about in her mouth. She wouldn't have imagined a moment like this ever happening in her life. But here she was, holding Twilight in her arms as they embraced deeper.

Twilight didn't want this to end. She hadn't thought of Shining like this in a while, and yet she was fulfilling a longterm fantasy she held back on. Her tongue lightly caressed the unicorn's bottom lip as they separated, causing Gleaming to shudder suddenly at the feeling. But as they moved back, they gave each other a quick peck, proving that they didn't want to stop.

"Hey, Gleamy." whispered Twilight in a seductive tone. "Do you want me to show you why I wanted you like this instead of Shiny?" she wondered.

Nodding, Gleaming Shield put a hoof to the alicorn's cheek and gently stroked it. Twilight smiled and then proceeded to kiss the univorn's neck lovingly. Her lips touched every part of the mare's collarbone. "A-Ah..." moaned Gleaming, feeling Twilight not only softly nibble a tuft of her neck, but her hoof reaching below her stomach to something pulsing. "W-Woah..." her moans grew louder as the alicorn's hoof moved more down.

Quiet smooches were heard as Twilight leaned toward Gleaming, a hoof moving about in her new marehood. The unicorn had no idea how to respond and only leaned back, her eyes rolling to the back of her head in a pleasurable state of shock. She hadn't experienced a feeling like this before and her tongue hung out of her mouth while the alicorn continued to caress her lips around her neck, planting soft kisses on her.

Gleaming had no idea what Twilight was doing to her new bodypart, but it was obvious she didn't want her sister to stop, and she was stroked a hoof on the vulva. "Keep going, Twilight!" she whispered into the alicorn's ear as loud as she could. The purple pony nodded and ran her hoof faster. The unicorn groaned, planting her lips on her sister's muzzle in excitement.

Before she could do anything else, Twilight gently pushed Gleaming back and spread her hooves open. She kissed her sister on the lips before trailing her mouth down the mare's body. From her neck, to her chest and stomach all the way to the sides of her hooves. At last, she found Gleaming's vagina and stuck her tongue out. She reached into the unicorn's new marehood, sending tingles down her spine as a result.

"T-Twilight! Oh, yes!" grunted Gleaming in pleasure. She could feel Twilight's wet appendage moving around inside her. Literally. "Yes!" she yelled out again. Twilight didn't say anything back, choosing to please her sister. Her tongue moved in circles, intending to tease her lover's vulva, Alas, she felt something drip down, no doubt from the adrenaline of being pleasured. Satisfied, Twilight raised her head, her tongue lolled out.

Gleaming was panting a little, seeing the alicorn wipe her mouth a bit through a half-lidded stare, "That's why we turned you to a mare. So you could experience this." she cooed.

Surprisingly, Gleaming used her magic to hold Twilight still and raised a hoof behind her back, pushing her back in for a wet kiss. Her tongue danced inside the alicorn's own mouth, squirming with her tongue. A musky smell began to make itself known from Gleaming Shield and Twilight, who was starting to get excited as well.

The siblings continued to make out. Twilight reached her hooves to gently stroke Gleaming Shield's beautiful long blue mane, tilting her head to deepen their kiss. The unicorn reached a limb to the alicorn's cheeks, holding her head up for support as they sat up, leaning on the pillow Twilight brought. Their tongues danced in one another's mouths, circling each other as they fought for dominance.

As they kissed, their horns bumped, causing a small spark of magic to erupt as a result. They couldn't see this, but it was known to be an erotic feeling between two unicorns should it happen. Twilight moaned again, gently sucking on her sister's lower lip. A smooch was heard as they finally separated, the alicorn's mouth slowly distanting itself from her lover.

The siblings panted, resting upon the pillow together. Silence was shared among the two, only basking in one another's presence. Tjat was until Gleaming spoke, "So... When does this spell wear off?"

"Cadance has a counterspell." Twilight assured quietly, "...Thank you, Shiny." she purred.

Gleaming smiled, "It's my job to make you happy, Twily." she whispered back, pecking her sister's forehead. She continued, "...And if you want, we can keep doing this. So long as Cadance approves."

"Really?" Twilight asked in glee. She kissed Gleaming one last time and then parted, seeing a trail of drool connect them once she was done, "Mwah!" she wiped the drool from her mouth and Gleaming's, "I love you, BBBFF."

Gleaming smirked, stretching a hoof under Twilight. She allowed the alicorn to rest her head on her chest, nuzzling the unicorn's neck as soft as she could, planting gentle pecks on it. "I... Love you too, Twily."

"You know, maybe we should invite Mom to join us." whispered Twilight, snuggling in the hooves of her brother/sister.

Gleaming nodded, "Yeah..." she closed her eyes before snapping them wide open, "Wait, what?"