Shining Armour woke up horny.
Before he'd even properly cracked his eyes open and kicked his brain into gear, he felt the need. The need between his legs that made his already-enormous flaccid cock stand at attention. The need that made his fat, heavy balls ache. He twitched in his rousing, his heartbeat pumping more and more blood into his loins until his obsidian prick stood at its full twenty-inch might. He turned onto his front, cracking his eyes open and feeling his hot length rest against the muscle of his powerful chest.
"Fuck..." came the grunt that curled into a yawn.
He sat up properly and stretched, the ache of exercise still clinging to his muscular frame from yesterday's efforts at the gym. He was supposed to have taken Cadance on a date last night. She'd planned for the two of them to go out to a fancy restaurant to celebrate his graduation from basic training and he'd planned to fuck her brains out after the meal. Unfortunately, she'd had to cancel their plans due to Celestia needing her for some dignitary nonsense and had to reschedule.
He reached for his phone on his nightstand to check for any messages. He had the usual set of useless notifications, updates, yada yada. Eventually he got to his message notifications and saw a few from Cadance. He tapped it and was greeted with one of his favourite sights: Cadance's huge, pierced tits propped up by her arm with her tongue playfully stuck out to tease him.
"I know you missed your chance to see the girls last night. Hope this makes up for it a bit." the message read.
Shining smirked, appreciating the gesture. He responded in kind, snapping a photo of his throbbing prick after struggling to find a way to fit it all in frame. He sent the photo over and typed his own response.
"Look who misses you even more."
A few moments ticked by before the three little dots showing Cadance typing popped up. What followed that was a flood of rather desperate-looking emojis and another message.
"All that meat at the buffet and I'm out of town for a week."
Shining groaned in annoyance, realising it was gonna be even longer before he got to plough Cadance like they'd planned. She sent another handful of emojis clealy displaying how distraught she was over being away, followed by another saucy message.
"Well, if I'm not at the table, you could give my seat to Twily. It is her favourite meal, after all."
Shining's cock throbbed at the thought. A grin spread onto his face as he humoured the idea, nodding quietly to himself.
"Sounds like a plan," Shining shot back before setting said plan in motion.
He got out of bed and ambled out of his bedroom, not bothering to dress even for the sake of modesty. His father had passed away years ago and what hung between his legs wasn't anything the mares in the home hadn't speared themselves on before. He made his way down the corridor and spotted the bathroom door open with the sound of Twilight humming quietly to herself from inside.
With another lecherous grin, the stallion made his way into the bathroom and came to a halt behind his younger sister. Twilight, as always, was a delight to behold. She was still wearing her night clothes, that being a pair of volleyball shorts that she'd grown out of years ago threatening to tear at the seams as it hugged her big, curvaceous ass, and a frayed crop top that was one sneeze away from exploding off her enormous tits.
She was in the process of brushing her teeth, leaned over the sink with her ankles together, giving Shining more than an eyefull of how good his little angel of a sister looked. Seemingly off in her own world and not spotting Shining in the reflection of the mirror, the stallion walked up behind her, placed his hands on his hips, and laid his enormous, half-hard cock on her back. The mare snapped back to reality immediately upon the sensation, a look of alarm on her face as her eyes darted into the mirror to see who the sudden intruder was, only to visibly relax as soon as she realised who it was.
"Oh, cripes," she sighed, toothbrush still in her mouth. "You nearly gave me a heart attack, Shining."
"I could say the same about you, Twily," the eldest sibling chuckled, gently grinding himself against her backside. "Door wide open, bent over the sink, ass hanging out like that... I'm lucky to still be alive."
Twilight giggled, spitting the toothpaste foam in her mouth out and briefly rinsing it with water from a glass. She stood up straight, leaning her weight back against her brother's powerful chest, standing easily a foot shorter than her brother as his hands began to gently knead her colossal tits.
"You ever planning on starting that growth spurt yet?" he teased.
"I'm nineteen, Shining," she responded, her eyes fluttering slightly as she enjoyed her brother's touch. "If I was gonna get bigger, I'd have done it by now."
"Really? The fact these puppies seem to get bigger every time I see you tells me that you've still got a lot left in that tank," he smirked. "Celestia letting you into her cake stash a little too often?"
"Y'know, that might just be the nicest way anyone's hinted that I'm gaining weight I've ever received," Twilight sniggered, turning around in her brother's embrace and pressing herself against his body. "You telling me I need to cut back on the snacks?"
"Shit, so long as that weight keeps going to all the right places-" he began with a firm grope of her big ass. "-you're not gonna catch me complaining."
Twilight giggled again, standing up on the tips of her toes and leaning up for a kiss. Shining took the hint and met her in the middle, hands digging into the voluptous flesh of her firm ass as hard as his tongue dug into her mouth. Twilight trembled from head to toe with nervous excitement, a trait she'd never managed to shake no matter how many times they'd done this over the years. She traced circles around his tongue with her own, squeezing herself against his tall, muscular body as best as her lithe, gentle frame could manage.
Shining slid his once-again throbbing cock between her legs, the warmth of the treasure between Twilight's legs radiating through every inch. Pre dripped from the tip of his prick as Twilight began to gently grind herself against the jet-black pillar between her thick, marshmallow thighs.
"Wow," Twilight squeaked out between kisses. "Someone's horny this morning."
"I live in a house with you and mom," Shining chuckled. "It's a miracle I don't walk around with a constant hard-on."
"I'll say-" came a familiar voice from the doorway.
Twilight nearly jumped a foot in the air at the sound, only kept rooted to the floor by her brother's strong grip. The two turned to look at the source of the voice, seeing their mother standing cross-armed in the doorway with a warm, smug smirk on her plump lips.
"Really?" she asked, tilting her head oh-so-playfully. "Not even gonna have breakfast first?"
"What d'you mean?" Shining asked, continuing to grind against his sister's cunt in full view of their beautiful mother. "I'm already getting a mouthful of my favourite breakfast muffin right here."
Twilight blushed a full pink as Shining pecked her on the cheek, snuggling against him again as their mother rolled her eyes at the interaction.
"Careful now," she jokingly warned. "Anything more sappy and sweet than that, and you'll get diabetes."
The siblings chuckled to themselves as their mother made her way into the bathroom.
"Jump aside real quick, please?" Velvet asked, scooting the two of them over as she got down on her knees to route through the cupboard under the sink.
The door swung open and the older mare fiddled around for what she needed, face mere inches away from the roaring sexual heat of her children's sexual degeneracy that neither even halted in her presence. Twilight returned to kissing her brother, Shining continued groping his sister's big ass, and their mother seemingly found whatever she was looking for.
"My, my," Velvet cooed as she closed the door. "Leaking already? You better not make a mess on my floor."
"No promises," Shining chuckled.
"Well, at the very least..." Velvet moaned, leaning forward and running her hot, wet tongue over the dripping tip of her son's throbbing cock before gulping down the mouthful of pre-cum it spurted into her maw in response. "Try not to get it on the matt."
"Haaaa..." Shining exhaled, a shiver of excitement rolling down his broad back. "Suck it, mom. Just for a while."
"I really shouldn't," Velvet hummed, knowingly letting her breath spilling out over Shining's eager prick to tease him more. "I've got the kettle boiling downstairs and should get around to making breakfast..."
"Mom..." Shining repeated.
"Oh..." Velvet tutted, making an exagerrated gesture of consideration before sighing. "Alright, sweetie. Just for a while."
With that, the matron of the house set to work on her son, gliding a handful of inches of his obscenely-large prick into her maw and locking her plump, experienced lips into an almost-airtight seal around it. The three worked in a glorious unison, with Shining's powerful hips entertaining both of the Sparkle family mares, Twilight longingly clung to her brother's chiselled form, and the doting mother of the two expertly-slobbered all over her son's throbbing cock, teasing him closer and closer to an orgasm.
Velvet moved with years of experience, juxtaposing Twilight's much less honed technique of awkwardly grinding herself against her brother's obsidian monster, all the while Shining lost himself in the heat, taste, and touch of the beautiful mares religiously devoted to him. Shining gritted his teeth, the muscle in his jaw tensing as he fought back the rapidly-approaching orgasm his mother was coaxing him towards faster and faster.
Try as he might, however, his resolve didn't last all that long. Inch after inch being lovingly-served by a mouth as perfect as hers, the stallion couldn't help but lose himself in her beauty and touch. With a short, muffled whinny, the lust-addled son blew his load into the mouth of his cum-hungry mother, jutting his prick forward and stabbing more inches directly into her gullet to pump his thick load directly into her stomach.
"Fuuuuuuck..." Shining groaned, feeling his enormous balls empty into his mother's maw and fill back up with the rapturous afterglow of degenerate delight. "Drink it all..."
His wish was her command, slavishly sucking every spurt of semen without a slip-up or sweat drop, feeling her pudgy stomach bloat with her son's cream-filling. Soon sated, she slumped back from the cumhose between her darling boy's legs, dropping onto her own enormous ass and allowing Shining to spurt the last bit of his load onto her lips and tits. She exhaled loudly, mouth wide open and tongue hanging out as she showered in the last throes of Shining's orgasm.
"N-No fair..." Twilight pouted as she craned her neck to watch the show. "Where's my share?"
Their mother, ever-caring and selfless as always, stood up with a maw full of thick, steaming cum and, wordlessly, connected her mouth to her daughter's. The two mares, united in name, blood, and degenerate desire, shared around the last of Shining's load between one another, tongues painting each other with their favourite flavour before swallowing down their favourite treat.
But once their sweet treat was gone, they savoured each other's taste. Tongues linked, gasps were stolen, and the heat in the room swirled around them in a mind-addled, sexual euphoria before they eventually, regretfully, broke away from one another. Twilight was left red-faced and panting, eyes alight with sexual need while her mother looked back at her with a glint of contentendedness in her beautiful orbs.
"Have fun you two," she smirked, stepping back and out of the bathroom. "I've now got a load of laundry as well as a load of cum to work my way through now."
With a wink and a wave, Velvet disappeared around the corner and was heard thudding down the stairs to continue whatever she had planned after lighting her children up like a box of fireworks with a match thrown into it. The siblings stepped back from one another, Shining flopping his spit-and-cum-soaked cock against Twilight's soft abdomen, the two locking eyes for what felt like forever before Shining took the next step.
"Take your PJ's off," came the firm command, one that Twilight obeyed immediately without a second's hesitation.
"I need you in me," she moaned, leaning against the marble sink and staring down at her dripping cunt.
"I thought you'd never ask," Shining nodded, stepping forward and parting his sister's legs.
He held himself in place for a long moment, the thick head of his cock pressed against the fat lips of Twilight's sopping pussy, eagerly smearing his cum against her soaked excitement.
"Don't you dare tease me," Twilight said in a sharp tone, eyes flashing with as much irritation as desire for the briefest of seconds.
"Yes, ma'am," Shining nodded, grabbing hold of his sister's broad hips and pushing every inch of his desire inside her.
Twilight bit back a scream as she felt her cove being stretched almost to capacity, her teeth chomping down on her bottom lip almost hard enough to draw blood. Her mind blanked out and rebooted every three inches that Shining pushed inside her, the boiling core of his cock feeling so monumentally good that she threatened to shut down entirely from sensory overload.
"Ha..." she laughed out after a moment. "Ha ha... holy fuck..."
Shining leaned forward and kissed her, feeling Twilight's thick legs wrap around his waist as he finally hilted himself inside her. Her gut visibly distended to fit all that meat in her, jutting out so far that she could lean down and lick the head of Shining's twitching cock through her flesh. She gritted her teeth, fireworks sparking off across her body, nerve clusters seemingly seizing up and releasing over and over again as she panted herself away from the orgasm she nearly experienced just from him putting it all in.
"Somebody's wound up tight, huh?" Shining teased playfully, leaning forward and running his thick tongue across his sister's sharp cheekbones. "Perfect fit, though, huh?"
"I..." Twilight strained out. "I was built for this... for you..."
"Oh, don't tell me that, Twily," Shining groaned into her ear. "I wanna make it more than three strokes before I cum..."
Shining kicked himself into first gear, using those well-trained muscles to fuck his sister's tight little cunt just the way she loved it, her own eyes locked onto that giant cock pushing itself in and out of her gut.
"This is perfect..." she groaned, transfixed entirely by the sight of her brother rearranging her guts. "N-Never stop doing this with me..."
"You want this forever?" Shining asked.
"Marry me..." Twilight groaned.
"Well I can't do that," Shining mumbled with a shudder. "Few laws in the way, if I recall correctly."
"I don't care," Twilight responded. "I wanna be your wife... I'll change the laws... I want you to fuck me on the altar in front of everyone..."
"T-Twilight!" Shining exclaimed, willing himself to go deaf before he came from the thought of it alone.
"Tear of my dress and fuck me full of foals in front of the whole congregation!" she barked, legs locking even harder as she pressed her muzzle into his chest, licking the sweat off his pecs and inhaling the scent. "I love you so much!"
"I love you too, Twilight!" Shining growled, unable to hold himself back any longer and unloading his desire into his sweet little sister's sweet little cunt.
"That's right!" Twilight barked out. "Cum in me! I'm all yours, big brother!"
If it was possible to cum twice at once, Shining was pretty sure he did exactly that after the last thing Twilight said. He curled his hand around her throat, grabbing and pulling her maw against his and stabbing his tongue into her mouth. Twilight clenched up, her cunt clamping down as she came hard enough to rock her entire nervous system, tongues swirling and dancing with one another as Shining audibly blew rope after rope of thick cum into Twilight's cove.
Like mother like daughter, her belly began to distend. To swell, to fill, to stretch and bloat with thick, sloshing cum as sweat and tears of euphoria dripped from Twilight's entire body. His cock twitched, his balls clenched, and his load fired off again and again, now able to feel Twilight's bloated, pregnant-looking belly touch against his chiselled, sweat-soaked abs. All too soon, however, the flow came to an end, and the siblings were left locked together as a pile of sweat, spit, cum, and sweet, sweet sexual desire.
"You're such a fucking degenerate," Shining chuckled after a long moment of silence. "You really mean all that shit you came out with?"
"I... uh... might've got lost in the horny..." Twilight giggled, blushing red and drowning in awkwardness. "I didn't really think you'd be that into it..."
"I was only playing along," Shining lied.
"Yeah, okay," Twilight scoffed. "You don't get to immediately cum three gallons in my pussy from the suggestion alone and then tell me it was just jokes."
The two laughed quietly together, exchanging gentle kisses, soft touches, and simply staying locked together in the warm glow of their more-than-unique morning ritual.
"We should do this more often," Shining said with a playful smirk, kissing his sister's bottom lip and getting her to run her tongue over his as she did so.
"You really do want me as your wife, huh?" Twilight smirked, gently slapping him on the ass as she cuddled against him again.
"Yeah... you and Cadance would be great," Shining nodded.
"Mom too?" Twilight poked jokingly.
"Oh fuck yeah," Shining groaned. "She gives the best head out of all three of you."
"Is that a challenge?" Twilight queried, cocking a thing eyebrow with a smug smirk.
"You know what..." Shining shrugged. "Yeah, it is. You, her, and Cadance. Whenever she gets back from work, the three of you are doing a blowjob contest."
"I'll mark my calendar," Twilight cackled, shifting on her fat ass she she began to feel it go numb. "In the meantime, lets get in the shower so we can wash all of... this off."
"And try not to get it on the matt," Shining nodded.
"Such a good boy," Twilight smiled with a peck on the cheek. "That's why we love you."
"That and my enormous cock," he shrugged.
"Yes, and your enormous cock, you smug son of a bitch," the younger sibling added on.
"Don't talk about my mother like that."
