BBBBF Piggyback Ride

by Some Leech

Rating: mature
Tags: My Little Pony: Friendship is Magic, Porn, Fetish, Shining Armor, Sex, Twilight Sparkle, Profanity
Length: 3267

Shining Armor comes to look after Twilight for the weekend while his parents go on a short trip. He realizes, only too late, that she's had quite a growth spurt in his absense.

Shining Armor, taking a break from the royal guard academy, comes home to look after his little sister for the weekend. With his parents out of town, and Cadance away on a vacation, the siblings decide to do some family bonding.

Kinks include: Futa on Male, Foalcon, Incest, Size Difference, Crossdressing, Anal, Mind Break, Cum Inflation, Dirty Talk

Fic was inspired by a lovely piece by Cold Blooded Twilight, you can find their art here
https://derpibooru.org/search?q=artist%3Acold-blooded-twilight%2C+safe

Also I realize that BBBBF may seem confusing, give it a read if you want to get a better understanding of my choice of title!

Published 2018-02-24 00:00:06 UTC
Last updated 2018-02-24 00:00:06 UTC

Quality Time

KNOCK KNOCK KNOCK, Shining Armor banged his forehoof on the solid wooden door of the house, taking care to adjust the plates of his gleaming armor before anyone could answer. Sure, he didn’t have to wear his issued gear for the occasion but he felt like showing off just a little bit.

“Yes, how can I,” a grey mare, with white and purple streaked mane, began as she opened the door before realizing exactly who was waiting there. “Shining!” she exclaimed, wrapping her hooves around him in a tight hug.

“Hi mom,” Shining replied, patting her back while enwrapped in the mare’s embrace.

“Honey, it’s Shining!” Twilight Velvet shouted over her shoulder.

“Shiney!” a somewhat shrill voice called, before a tiny purple mare came tumbling into the two.

“Hey lil sis!” Shining armor warmly said, reaching down to tussle the mop of hair on Twilight Sparkle’s head.

“I’m so glad you made time to watch your little sister for the weekend, she’s been dying to spend time with you since you went off to the academy,” Velvet noted, releasing him from her grip and trotting back in the house. “Night Light and I have been looking forward to this little getaway for quite a while,” the grey mare continued. “I feel terrible that we won’t be able to spend all that much time catching up but at least we’ll have the evening,” she said, trotting off to the kitchen.

“It’s fine mom, I’ll have the whole weekend with my little sis. Isn’t that right?” Shining said, leaning down to snuggle Twilight, who grinned from ear to ear as she nuzzled his neck back.

“We’re gonna play all sorts of games and stay up late and tell stories right? I’ve got all sorts of new books I wanna tell you about, even some Celestia let me borrow from her personal collection! Come on, lemme show you!” the small purple filly exclaimed as she squirmed free, trotting off towards her room. It was only as she departed that Shining Armor noticed the prodigious appendage swinging lewdly from beneath his sister.

“Uh…” words failed him as he watched her leave, he’d known his sister was a dickmare but the last time he’d seen her she wasn’t nearly as large. “I’ll be right there Twily,” Shining said, walking to the kitchen after Velvet. “Umm, mom?” he began, causing the grey mare to turn, “Since when was Twi so, uh, big?”

Twilight Velvet blushed, averting her gaze. “Well, she’s just going through a growth spurt is all. She’s just at that age where she’s easily excitable…” her words trailed off, clearly uncomfortable with the subject, and preferring to focus on preparing the meal for the evening.

Shining Armor resigned himself to only address the issue if it came up, preferring to only deal with it should the need arise. Twilight Sparkle was his sister, and he’d genuinely been looking forward to spending some time with her since he’d been away for the past few months at the royal guard academy, so he was sure the new development wouldn’t affect his visit or their time together.

“Hey son,” Night Light said, entering the kitchen. “Look at you, quite the soldier now aren’t you?” the stallion commented, giving Shining Armor a hug, before seating himself at the dinner table. “Everything been going well at the academy?”

“Oh yea,” Shining began, pulling up a seat for himself, “they’re keeping us busy with drills and the classwork is a hassle. I never knew learning all the ins and outs of different duties or diplomatic assignments would be so complicated. Did you know that Yaks butt heads as a greeting?” he chuckled as he began to recount some of his training.

The remainder of the evening was rather quaint, the family enjoyed a meal of hay burgers and shakes before going out and getting ice cream. Fortunately Twilight Sparkle wasn’t nearly as excited as she had been when Shining Armor had first arrived, her package neatly sheathed between her legs as she gleefully enjoyed the creamy treat with her family. The quartet returned home afterward, the sun having set shortly beforehand. Twilight Velvet and Night Light went upstairs, to finish packing their belongings for the trip, while Shining Armor went off to tuck Twilight Sparkle in for the night.

“I really am happy you came to visit for the weekend,” Twilight said as Shining Armor draped a blanket over her. The little filly wriggled about, getting comfortable, while her brother watched with discomfort as an obscene bulge at her groin flopped about under the thin fabric, like a girthy serpent.

“Sure Twily, anything for my favorite sister,” he said, patting her head and causing her to smile affectionately.

“I’m your only sister silly,” she remarked, grinning broadly.

“Sleep well little sis,” he said, turning to the door and seeing himself out.

“Hehe,” she giggled, “I’m not that little.”

Shining Armor paused, he was sure she hadn’t meant anything indecent by the comment so he brushed it off. “G’night Twi,” he whispered, shutting the door softly behind him. Walking down to, what was, his old room Shining flopped down on the bed. He was exhausted after having gone through a full day of classes and exercises, then catching up with his family, while entertaining, had been draining nonetheless. Laying on the bed, his mind began to wander as he drifted off to sleep. His thoughts drifting to his sister and the bulky apendage which resided on her groin. He’d fooled around with a few stallions before, there wasn’t much else to do in the late evening hours while sequestered in a barracks with a group of guys. Twilight’s was, by far, one of the largest he’d ever seen. Shaking his head he buried it under a pillow, trying to escape the inappropriate images of his sister’s package that danced through his head. After some time he drifted off to a fitful sleep.

Morning came and Shining Armor could feel something warm moving against his belly, poking his head under the sheets he was meeted with his sister’s beaming face.

“Morning sleepy head,” the purple filly said, snuggling against her brother’s chest and stomach. “Mom and dad already left, they had to leave early and told me that they wanted you to sleep in but I couldn’t help myself,” Twilight continued, climbing out from under the sheets and hopping to the floor. “Come on, I’ve got some breakfast ready for us,” she sang, trotting out of the room, her pendulous member swaying beneath her.

Rubbing the crust from his eyes with a hoof, Shining armor got out of bed and made his way towards the kitchen. He really hoped Twilight would calm down a little as the weekend went by, having to deal with her situation for several days alone would be awkward to say the least. Rounding the corner to the kitchen he found Twilight, wearing an apron, plating several pancakes before carrying them to the table. “That’s really sweet of you Twi,” Shining Armor said, seating himself at the table and eying the delectable breakfast.

“Well it’s the least I could do for my BBBFF,” Twilight hummed, setting a plate of the pancakes in front of him. Placing her own plate down, she hopped onto her stool, her dangling cock swung violently, sending a rope of precum onto Shining armor’s plate and coating his breakfast in the sticky substance. Twilight’s mouth went agape, horrified by her unintended actions as Shining Armor sat stupefied. “Oh, oh I’m so sorry Shiny!” she blurted, hanging her head in shame. “This stupid thing has been such a pain,” she lamented, glaring down at her marecock with a disgruntled look. “Celestia told me that I’m at that ‘special age’ where it kind of has a mind of its own, and that it’s perfectly natural, but I keep thinking about butts and whenever I get excited it just pops out. I don’t know how stallions or mares like myself deal with it! I’ve tried rubbing it like the princess showed me but that only leads to me making a mess and, at best, temporary relief,” Twilight babbled on, clearly growing irate.

“I...it’s fine Twi, I think everyone who has one of those knows the struggle,” Shining Armor noted, trying to assuage his sister’s dismay.

“Even if it’s having to deal with one as big as this?” Twilight protested, hefting her dong with one hoof and causing another dribble of pre to leak from its tip. “It’s nearly twice as big as yours.”

“I don’t think that makes a difference,” Shining answered sheepishly, blushing a bit as he watched his sister openly fondle herself, “and don’t worry about the breakfast, it’s not that big of a deal.”

“So you’ll eat it?” Twilight excitedly asked, her dour expression quickly having shifted to one of adulation at the perceived implication.

“Well, I mean...” the white stallion hesitantly responded, unsure of how to proceed.

“Oh,” the purple filly whispered, crestfallen yet again, “I guess I’ll just throw these out then.” Unseating herself she walked over, readying to clean the sullied breakfast from the table.

“No wait, i..it’s fine, I’ll eat it,” Shining Armor groaned reluctantly, magically levitating a fork and affixing a gooey portion of pancake from his plate. Twilight watched with bated breath as her brother brought the forkful to his mouth, parting his lips and slipping the slimey morsel inside. “Mmmmm,” he exaggeratedly hummed, hoping to placate the filly and show that he did, in fact, appreciate all the effort she’d put into making their meal.

“So? How’s it taste?” Twilight asked expectantly, watching as Shining Armor finished the bite and gulped it down.

“It’s pretty good Twi,” he replied, slowly digging his fork in for a second bite. Truthfully it was more than good, her savory juice was damn near intoxicating. Savory and sweet it coated his mouth and throat, spurning him to finish his plate.

“I’m glad you like it!” Twilight beamed, seating herself and digging in to her own breakfast with relish.

The two sat in relative silence, finishing their morning meal, before sitting back contentedly, their bellies full. Shining Armor tried to hide the erection he’d developed while eating, the savory flavor of his sister’s juices having inexplicably excited him. He needed to go work off some steam so, seeing his sister bring her plate to the sink, the stallion made his move.

“Well Twi I’m gonna go hop in the shower,” Shining said, quickly making for the exit and hoping his sister didn’t noticing his semi-erect cock.

“But I had something special planned for us,” the purple filly said, looking somewhat hurt at her brother’s attempted escape.

“I haven’t showered since we got here Twily, it won’t take long I promise,” he weakly protested.

“That doesn’t matter silly,” Twilight dismissively stated, trotting over to nuzzle her brother’s neck. “Besides,” she uttered, “you smell fine to me.”

“So what is this ‘special’ plan?” Shining Armor asked, an inexplicable unease creeping over him.

“Come on, I’ll show you!” the little filly quipped, sauntering off in the direction of her room.

Shining Armor warily followed, his lust addled mind watching Twilight’s swaying marecock below her slender frame. Thoughts of wrapping his lips around it’s fleshy length crept through his mind before he shook his head to dislodge them. It had been quite a while since he’d gotten any action but he’d never do anything like that with his sister of all ponies. Sure she meant the world to him but there are certain lines that shouldn’t be crossed. A short distance behind the purple filly, Shining Armor observed her round the corner into her room. Making his way through the doorway he was met with Twilight holding aloft a quartet of two-tone pink striped leggings and a matching pair of panties, grinning broadly as her brother made his way inside.

“It’s been so long since you came to visit that I thought we could play dress up!” she said, trotting over while magically presenting the leggings.

Shining Armor cocked his head in confusion, “Aren’t those a little big for you sis?” he asked.

“They’re for you silly,” Twilight chuckled, moving the striped stockings in his direction.

“Twilight this is silly, why would I eeep,” the white stallion squeaked, suddenly levitated from the floor, as his sister began expertly slipping the fabric over each of his hooves and causing the supple flesh of his legs to squish delicately over tops of them. Sliding the fabric of the panties he had over his hind legs she nestled the fabric over his package and between his gleaming white flanks, the outline of his ponut barely visible through the pink cloth. Circling him she paused, noticed his slowly lengthening rod slipping from beneath the undergarment, before giving him a playful look. “Hmmmm,” she hummed, “something’s missing.” Clopping a foot down she rushed over to her dresser and retrieved a pink collar before running back and fastening it around his neck. “Perfect!” she exclaimed with a triumphant look.

“Well,” she noted, “seems like someone’s a little excited for our game.”

“I...it’s not what you think,” Shining stammered, blushing heavily, yet unable to control his reaction to the situation.

“Oh Shiny,” Twilight cooed, lowering him to the floor, “I know full well what’s going on.” Leaning up, and whispering in his ear, “I’ve seen what you and Cadence used to do when you were staying here. All those times she’d wear a strapon and plow you like a mare in heat while you moaned for her to do it harder.”

Shining Armor’s jaw nearly hit the floor, he knew his sister was observant but he’d never expected that she new about his various fetishes. “Well, we wanted to experiment is all,” he blurted, “and what business is it of yours anyways?”

“Celestia has taught me all about the more carnal aspects of ponyhood, how some stallions like to be stimulated in different ways and, I figure, since Cadence isn’t around, and it’s only the two of us, maybe we could both work off a little stress,” Twilight continued, trotting around to Shining’s flank and caressing it with her small hoof. “So if you want it,” she said, her horn glowing ever so slightly, “how about you beg me for it.”

The white stallion’s mind was suddenly filled with an inexorable desire to service Twilight’s cock, his vision locked on every scintillating inch of the fuchsia meat slung between her legs. “I...I want it,” he mumbled.

“You just want it?” Twilight asked, flexing her dong and causing it to slap against her belly, smearing the purple fur with precum in the process.

“I need it,” Shining Armor groaned, his blue eyes filled with longing, practically begging to be used.

“There’s a good boy,” Twilight said, pulling his panties down just a tad, to jam the tip of a bottle of lube into his pucker, squeezing its contents in his backdoor. ‘Want it, need it spell. Gets ‘em every time’ she thought to herself as she looked up at her brother’s imploring ass. “Dang it,” she grumbled, realizing their difference in height may present a slight problem.

Looking back Shining Armor smiled at her, “How about your BBBFF gives you a piggyback ride,” he said, waggling his ass from side to side invitingly.

“I always did love piggyback rides,” Twilight commented, jumping up and wrapping her forelegs around his ample hips and guiding the blunt head of her rod to his entrance. “You ready BBBBF?” she asked, playfully prodding his rear with the blunt tip of her cock.

“BBBBF?” he asked, breathing heavily in anticipation for what was to come.

“Big Brother Best Buttslut Forever!” she gleefully shouted, ramming her length into his ass as she began recklessly bucking her hips.

Shining Armor could only groan at her reckless assault, what the filly lacked in nuance and experience she more than made up for it with the sheer size of her marecock. He drooled as her medial ring slipped over his prostate, the feeling of fullness as her member snaked deeper into his colon was sublime. “Oh Twily,” he groaned, “you’re filling me so much.”

“Just unfwait until I cum,” she taunted, feeling him clench down on her length at her words. “Would you like that Shiny, being filled like a pretty little mare?” Twilight’s rear hooves locked around Shining’s fetlocks as she continued to pound away, her balls lewdly slapping against his ass with each thrust. Every impact causing the stallion’s alabaster cheeks to ripple as she mechanically pistoned his ass.

Raising his ass slightly, to give Twilight a better angle, Shining Armor began rhythmically clenching his tailhole, milking his sister’s shaft as it plunged in and out of his pliable ponut. “You’re so big,” he huffed, a string of saliva hanging from his mouth.

“Am I better than Cadence?” Twilight asked, ceasing her movements in anticipation of his reply.

“So much better!” he pleaded, “This doesn’t even compare to that silicone toy she has!”

“Wow Shining, you really are a butt slut,” Twilight chuckled as she began bucking her hips again, driving herself deeper into the stallion’s rump. Craning her neck over she noticed a steady stream of precum dribbling from his, now fully erect, shaft. “Are you gonna cum for your little sister?” pounding harder with the statement, nearly hilting herself in the white stallion. “If you cum for me I’ll let you suck me off for breakfast tomorrow, I noticed how much you liked my special syrup on your pancakes.”

Shining could feel himself getting close, his p-spot was on fire from the ceaseless pounding Twilight was delivering and the dirty talk wasn’t helping much. He could feel himself begin to flare as her strokes became shorter and more brutal, hilting herself and causing the thick base of her shaft to jackhammer his abused hole. “Mmmmmph,” he groaned, cum spraying from his bloated rod onto the wooden floor below.

“Such a good mare,” Twilight groaned through gritted teeth, his convulsing ass seizing violently around her throbbing dick as she plumbed its depths. “Shiny,” she wheezed, “I...I’m gonna cum.”

“Fill me up, I want every drop,” he implored, feeling her marecock start to violently throb deep within him.

“Fuck!” Twilight cried, throwing her head back as she reached her limit. The head of her member flared, spewing forth a torrential flood of seed deep into her brother’s gut and causing his abdomen to swell. The purple filly continued to grunt, fitfully bucking her hips, as wave after wave of jizz filled the stallion beneath her, causing his stomach to expand and sag. Riding out her orgasm she collapsed onto his back, a heaving and sweaty mass, as she fought to regain her breath.

Shining Armor looked back at his obscenely distended belly, heavy with seed, and looking not unlike an expectant mare’s. “Twilight,” he said, looking at the filly’s sweat streaked and lust addled face, “you’re grounded.”

“F...for what? I thought you enjoyed it,” she panted, a look of confusion on her face.

Shaking his head Shining Armor continued, “Not for the rutting, or the excessive creampie for that matter, but you know you’re not supposed to be cursing.”

“Awww shoot,” Twilight weakly protested, still firmly plastered on her brother’s back. “Well,” she mumbled, “at least I’ve got the rest of the weekend to spend with you.”

Shining Armor smiled back at her, they had two more days until their parents returned and he was sure they were both going to enjoy the time bonding.