Cup Cake grunted as she bottomed out in her son’s fat ass for the fourth time today, her massive balls resting against his comparatively small ones. She hadn't planned on spending so much time rutting him like the slut he was, but the day was long, and aggravating and she needed a release from it all. “And then he gave me only two bits and said that was enough!” She complained, grunting as her balls slapped against Pound Cake’s ass, sending his flanks quaking.
“Did he, at least, pay it all, eventually?” Pound Cake asked between thrusts, his hooves on against the headboard, his ass up in the air.
“No!” Cup Cake ground her teeth together, fucking her son’s ass hard enough that he struggled to even keep up, his forelegs becoming weaker by the second. “That asshole said it was more than what it was worth and just walked out. I’m just lucky he forgot half his order I would have had to chase his ass down the street.”
Pound Cake grunted, trying desperately to push back against his mother’s relentless thrusts but his belly had long since grown heavy from seed, most of which was still from yesterday night when his mother used him as a cock sock. It hadn't helped matters that she had dumped a further four loads inside his ass since then, always plugging his butt with her favorite toy between sessions. Which combined to make the colt have difficulty walking around, or even feeling his hind legs for that matter.
“Are you, close?” He whispered desperately, feeling his own orgasm coming closer by the second.
“Just a few more minutes sweetie, can you handle it?” Cup Cake asked without slowing down one iota.
“Er- sure.” He bit his lip briefly, forcing his hooves to stop trembling quite so hard. “Just make it quick, my boy pussy can't handle much more.”
“Don't worry sweetie, I’ll make this quick.” Cup Cake replied, planting a kiss on the back of the male’s neck and causing a smile to cross his face.
The next few minutes were silent, with Cup Cake taking out every last ounce of frustration on her son’s poor, abused asshole. He had long since gotten used to getting railed nearly non stop by the futa mare, but today was pushing his now admirable level of endurance to it's absolute limit. And to make matters worse Pinkie Pie always seemed to be either unwilling or unable to take a turn servicing the endlessly aroused mare, always coming up with some excuse.
His father wasn't much better, the pathetic stallion was hardly able to take the head of her cock before tapping out and switching with his son. Cup Cake claimed her hooves didn't do it anymore but Pound Cake was fairly certain that was just an excuse as she had gotten too used to having him service her massive, throbbing endowment whenever she wanted. Which was incredibly frequently, to the point that Pound was fairly certain he hadn't gone to bed without at least three loads of his mother’s seed in his belly for over a month and a half.
Indeed the feeling of heavy futa seed had grown so synonymous with his existence over the last few months that the colt struggled to fall asleep without his belly being full of cum. Though this was pushing it, and the stallion looked down to see his gut swinging with every thrust, his mother’s cock still somehow managing to make an indent despite just how full he was.
“Sweet Celestia mom, I’m so fucking full.” Pound moaned.
“Language.” Cup Cake remarked. “Alright I’m almost there.” She smirked. “Maybe knowing just how bad you need your mother’s cum will help move things along.”
Pound cake blushed, his weariness becoming slightly more distant when his mom got down to their favorite part of their nearly hourly sessions, the dirty talk. “I need it so fucking bad mom. I’m so full already but I still need more. I can never get enough of your cum.”
Cup Cake grunted. “Goddess above you are so hot.” The mare whispered huskily. “I can never get enough of this ass.”
“Go on mom, give it to me.” He grunted, forcing his limbs to hold on a little bit longer. “Fill my ass with your cum. I want to see my belly grow even bigger!”
Perfectly on cue, the massive cock that was now filling every inch of his ass suddenly twitched as he heard his mother’s balls begin to quake as seed began to erupt into his depths. Seed sloshed audibly in his gut as his mother sighed, settling onto his back and smiling contently. “Wait, mom, don't!” He cried.
But it was too late, she had settled her weight onto him completely, adding just a little too much pressure to his already overtaxed limbs. Thinking quickly, the stallion shifted to the right, ensuring that they didn't land on his stomach, as he didn't even want to know how long the clean up would take if that had happened.
Landing in a heap, Cup Cake clutched to Pound’s side, holding him tight and tying them together, the colt unable to move in any direction that his mother’s massive endowment didn't want him to go. It was strange, and oddly hot to feel dragged down by his mom’s erection, but it was also considerably distressing, as he was pretty sure he wouldn't be getting up again until she finally softened enough to pull out.
“Goddess dammit.” He grumbled.
“Language.” Cup Cake remarked, giggling. “Sorry about that dear. I thought you could take a little more.”
“Normally I would but you've been running me ragged these past few days. I mean just look at what you've done to me!” Pound Cake gestured to his stomach, which had grown another size larger, now easily making him appear pregnant.
Her cock twitched inside him, making the colt groan as he felt his mother’s cock begin to harden once more. “Goddess dammit mom.” He whined.
“What? You know I can't resist you when you are filled with my cum.” She hummed, running a hoof down his side before settling on his bulging stomach. “I don't suppose you could go one more round, could you?”
“Mom I don't think I can even stand anymore.” Pound Cake pointed out.
The mare groaned in irritation. “AUgh, where's Pinkie when you need her?”
A sudden thump drew the pair of lover’s attention over to the door, where a beat red Pumpkin Cake stood next to her suitcase, a shocked expression on her face. “Mom, Pound?” She whispered.
“Oh fudge.” Cup Cake cursed.
Pound Cake smirked. “Language mother.”
“Hush you.” Cup Cake cursed under her breath, struggling to pull out of her son’s tight ass. “Wait, it's not what it looks like just -unf- give me a second.”
The older mare struggled to pull out for several seconds before finally managing to wiggle back far enough to slip out of his hole. A hole that was swiftly filled with a plug, Pound Cake sighing contently as he felt his ass become full once more, the brief emptiness torture to the slutty stallion. Now free of Pound Cake’s hole, Cup Cake stood on awkward shaky hooves.
“We- just, I.” Cup Cake stutterd, looking Pumpkin Cake up and down, and quickly realizing that something was out of place. “Pumpkin do you have a dick?”
The unicorn shuffled nervously, trying to hide her throbbing erection that pulsed under the combined gaze of her mother and brother. “N-no?”
Pound Cake snickered. “Oh goddess above this is too good.”
“Don't bully your sister. I’m sure there is an explanation for everything, right Pumpkin?” Cup Cake offered, gesturing to her still stuttering daughter.
“Explanation, err right I- Wait, you haven't explained yet!” She jabbed her hoof at Cup Cake.
“Err.” Cup Cake rubbed the back of her neck awkwardly. “We were just uh-”
“She was fucking my ass for like the fourth time today.” He put up his hoof, silencing his mother before she had a chance to speak. “It all started when I replaced one of her bran muffins with one of Pinkie’s special muffins two months ago. She's been fucking me multiple times a day ever since.”
“Pound Cake!”
The colt shrugged. “What? That's what happened.”
“That is so hot.” Mother and son both swung to the source of the comment. “I mean, that's so not?” Pumpkin frowned. “Your not buying it are you?”
“Nope.”
“Not even a little bit.”
The mare sighed, running a hoof down her face. “A colt friend wanted to try it, only for him to be turned off by the fact that I was bigger than him.” She sighed. “And then I found out it was permanent.”
“Hahaha.” Pound Cake snorted. “That is so you, sis!”
“Hey!”
“Yeah that was about how I assumed it would go.” Cup Cake remarked.
“Mother!”
The older mare shrugged. “You must admit that you have a habit of getting caught up in others suggestions only to be led to disappointment.”
“I have not.” Pumpkin declared angrily, sitting on the floor and crossing her forehooves over her chest.
“Really?” Pound Cake smirked, sparing her cock a glance. “Because about sixteen inches of mare meat says otherwise.”
The mare looked down, only to blush and quickly stand, trying to hide her cock from view. “Okay so what if I occasionally get in weird circumstances, it's not that strange!”
“She does have a point.” Cup Cake remarked. “I think it just runs in the family at this point.”
Pound Cake snickered. “True.” He smirked, glancing down to his sister’s massive throbbing erection. “Have you gotten bigger since we started talking?”
“I…” She gulped. “Maybe.”
“Oh my. Is my little Pumpkin turned on by watching her mommy pull out of Pound’s plot hole?” She smirked, strutting up to the younger mare and giving her hips a sway as she did, making her now semi hard cock to sway back and forth. “Or are you more turned on by your mothers hard cock?”
“I-I-I…” The younger mare gulped, unable to utter a single word.
“I think it was both, mom.” Pound remarked, snickering at his sister’s stuttering. “You should have seen her dick when you started walking towards her.”
“Butt out, butt slut!” Pumpkin shot back.
Pound Cake rolled his eyes. “That's not really an insult, mom calls me that all the time.”
“Well it is true.” Cup Cake coughed into her hoof. “Now then, what do we do with you?”
The older mare smirked as she began to circle the younger girl, eying her up and down and causing the unicorn to stand a little taller. “You've gotten a little taller since I saw you last.” Cup Cake remarked, running a hoof down her daughter’s shoulder and back. “It looks good on you.”
Pumpkin smirked. “I bet I’m taller than Pound by now.”
“Probably.” Cup Cake agreed, chuckling at Pound Cake’s flustered expression. “That's okay, he is a mare after all.”
“Mooom I thought we were going to keep that kind of dirty talk between us.” Pound Cake whined.
Cup Cake rolled her eyes and gave Pumpkin’s ass a firm smack. “Oh come on, I think it's obvious what's going to happen next.”
Pumpkin Cake blush lifted slightly and she eyed her mother cautiously. “What do you mean?”
“Yeah mom. What do you mean?” Pound added.
“Well.” Cup Cake licked her lips, giving Pumpkin’s ass one last glance. “First I’m going to fuck your sister good and long, really break her in, then I’m going to drop a hot steaming load into her pussy.”
The mare in question shuddered in ecstasy, her knees already growing weak as a thin line of liquid began to dribble down the inside of her legs. “That is so fucking hot.” She whispered.
“Then when your pussy is nice and stretched I’m going to pull out of you, then we are going to spit roast your brother for a few hours.” Cup Cake added nonchalantly.
“Hey! Don't I get a say in this?” Pound Cake whined.
Pumpkin Cake raised an eyebrow at her brother, looking him up and down. “You say that like you wouldn't want to get spit roasted by your mother and sister’s futa cocks.”
“I err…” The colt wilted, a bright blush crossing his face. “Just hurry up already.”
Cup Cake chuckled. “Well, you heard the boy, we better hurry up.”
“Are you sure about this mom?” The mare fidgeted, shooting her mother an odd sidelong glance. “I just got home and what if dad needs help running the store?”
“It's a tuesday afternoon, this is the slowest it will ever be in the store. Your father can handle that much at least.” Cup Cake remarked with a snort.
Pound Cake chuckled. “Oooh, that's harsh mom.”
The older mare shrugged, moving around to her daughter’s backside before giving the girl a firm shove. “Now then, mount the bed and spread your legs.”
Pumpkin Cake stumbled over to the bed, placing her hooves up onto the sheets and casting her brother a nervous glance. “When did mom get so commanding?”
“Right about the time she learned how much I enjoy getting degraded, it was all downhill from there.” Pound Cake remarked idly, laying on his side with one hoof on his belly, a smirk on his lips. “Get ready dear sister, she is not a gentle lover.”
“Hmph, I can be gentle.” Cup Cake remarked, before leaping up onto her daughter’s back and mounting her in a single swift movement.
“Oof, you weren't kidding brother.” Pumpkin Cake shuddered at the feeling, arching her back instinctually, allowing her mother to angle her cock against her pussy. “This is so awesome.”
Cup Cake shifted her hips and leaned in, nibbling at the mare’s neck. “Was that no good stallion of yours unable to even mount you?” She tsked. “What a loser.”
Pumpkin bit her lip, giving her brother a nervous glance. “You really were not kidding, she's insatiable. It's a good thing I came home from college.”
Pound Cake grunted, running a hoof over his swollen belly. “Something tells me that I’ll end up taking just as much dick as before.” He blushed. “Not like I’m complaining or anything.”
Pumpkin was about to make a snide comment about her brother’s lack of endurance, but her mother had chosen that exact moment to thrust forward. Her massive cockhead plowed against her daughter’s hole, making the girl shriek in fear, surprised to feel her hole stretched so brutally so quickly. That feeling didn't last long and the mare found herself melting into her mother’s embrace, surprised to feel her body already beginning adapt and stretch around the massive invader.
Pound chuckled at the ridiculous expression on his sister’s face, smirking as her tongue lolled out of her mouth. “I don't get to see this unless mom fucks me in front of a mirror.” He chuckled as Pumpkin shook her head, trying to reign in her bizarre expression. “I think I get why you like missionary so much mom.”
“Oh?” Cup Cake asked with feigned innocence. “Does she make that same face that you do when I stuff your pussy with a good six inches of cock in a single thrust?”
“Oh yeah. Her tongue even falls out of her mouth when you hit her nice and deep.”
“H-hey! Oh…”
Whatever Pumpkin had been trying to say was knocked aside by Cup Cake when she thrusted particularly hard, driving her cock deep into her daughter’s cunt. “You mean like that?”
Pound Cake nodded, chuckling at his sister. “She even whimpers a little, it's kinda cute.”
Cup Cake chuckled, grinding her hips forward, not allowing Pumpkin even a second to adapt before pushing even deeper. Under such a brutal, relentless pace it didn't take long before she was already balls deep in her, the indent of her cock pressing against her daughter’s stomach. Something Pound noticed instantly, bringing a thirst to his throat and a smile to his lips. “That is even hotter when I see it on someone else.”
“Oh really? Does my cock show on her stomach?” Cup Cake asked, giving her hips a little wiggle and causing Pumpkin Cake to shudder, a whimper slipping past her lips.
“Yeah it's so hot.” Pound replied.
“Wait.” Cup Cake shot her daughter an odd look. “Your awful tight, did that stallion of yours ever rut you? I mean I’m big but your-Unf- really tight.”
“Err…” Pumpkin blushed, rubbing the back of her neck awkwardly. “I may have never actually gotten past second base with him.”
“B-but you said he…” Cup Cake’s jaw fell open.
“Oooooh! Mom took both of our virginities!” Pound Cake raised his hoof. “High five.”
“Yaay.” Pumpkin muttered weekly, clopping her hoof against her brother’s.
“I am a terrible parent.” Cup Cake muttered darkly.
“Only if you stop.” Pumpkin frowned. “What? You were thinking it.”
“True.” Cup Cake sighed. “Just don't tell your father quite yet okay?”
Pound Cake shrugged. “Whatever, like he would even care.”
The older mare sighed, rolling her hips and giving her daughter a good, deep thrust. “No going back now I suppose.” She smirked. “Better get ready little girl, because I got a lot of feelings to work out now.”
“Should I be scared?” Pumpkin asked nervously.
Pound Cake smirked. “Only if you don't enjoy getting your face rutted into the ground. Otherwise you got only good things in your future!”
Again the young mare was cut off by her mother’s insistence, her cock driving her face into the bed and a moan to her lips. The older mare’s thrusts were without end, becoming so rapid in a matter of seconds that Pumpkin struggled to keep up. Only after a few minutes of fighting was she even able to pull her face from the blankets, where she saw the smirking face of her slightly older brother. She wanted to shoot him a snarky comment or at least refute the comment she knew was coming but she found herself unable to even mutter a single word.
Again and again Cup Cake drove her cock down into Pumpkin’s snatch, her cock stretching and warping the confines of the young unicorn’s pussy. It had all happened so fast that Pumpkin could hardly keep up, but now that she was starting to get used to it, she was amazed by the fact that she had even managed to contain her mother’s massive girth.
She had used toys before, plenty of times in fact, but nothing she owned could stack up against the shear titanic scale of her mother’s throbbing endowment. She was thick, easily as thick as the girl’s hoof, and the way it stretched her pussy was beyond anything she had ever experienced. It felt almost as if her pussy was being reshaped, so that it perfectly suited her mother’s mammoth cock. The thought brought a shudder to her body, and Pumpkin couldn't help but whimper aloud as she considered just how much of her body was being changed to suit her mother’s lust.
It felt good, to be used, and abused, to have her body changed so that she would better serve her mother, but she wasn't quite ready to give voice to those thoughts, not yet anyway.
By then she had managed to get her hooves under her, gaining a better balance and allowing her to hold on a little better. This new angle was followed by a strange new experience, namely the sensation of her mom’s medial ring occasionally rubbing against her clit.
“Holy fuck.” Pumpkin Cake whispered through grit teeth.
“Oh yeah that's the spot mom, keep hitting her there. No wait, a little higher… oh yeah.” Pound Cake smirked, rubbing his cock slowly, watching intently as his mother continued to pound his sister’s pussy with all the insistence of a stallion that had just gotten out of prison.
Cup Cake leaned down and nibbled on her daughter’s ear. “Are you close sweetie? I can feel your balls beginning to churn, you must be enjoying yourself.”
“I fucking love this so fucking much.” Pumpkin whispered between labored breaths.
Cup Cake smirked. “And by the look on your brother’s face he's enjoying the show. Aren't you my little butt slut?”
“Fuck yeah. It's kinda nice not being the one getting fucked for once.” The colt bit his lip nervously. “Just hurry up please, my pussy really needs some attention right now.”
“Oh don't worry, we will get there soon.” Cup Cake remarked. “I know how you can't cum unless you have a nice thick cock inside you.”
“Wow, you guys are really good at that.” pumpkin remarked, one hoof straying down to her cock and beginning to gently pump the hard appengage.
Cup Cake smirked. “It's my second favorite thing to do. Do you know what the first thing is? Stuffing my slutty kids full of cum.”
Pumpkin Cake shuddered, forced to release the grip she held on her cock as Cup Cake seemed to jump back into the action, pounding her pussy with all the force of what felt like a jackhammer. The older mare’s massive balls slammed against Pumpkin’s comparatively smaller ones, making a sliver of inadequacy worm into her mind. It was only right though, Pumpkin Cake thought, her mother was the biggest, most dominant mare Pumpkin had ever seen, she should have the biggest dick and fattest pair of balls.
She grunted as she felt her mom’s cock grow dangerously close to touching her cervix. “Mmf, I’m so close. Don't stop mommy, fill me up with your cum!”
“Don't worry, I don't intend on stopping until I pump your womb full of my seed.” Cup Cake grunted, slamming herself into her daughter’s pussy harder and faster with each passing second. “You won't leave this room until I’ve put a steaming hot load inside you.”
“Oh f-f-fuck.” Pumpkin whimpered, barely able to stay standing under the relentless barrage of pleasure.
“You know she isn't very good at this.” Pound pointed out.
“Give her time. You weren't very good when I started going this fast either.” Cup replied.
“True.”
Pumpkin Cake didn't here a word either pony said, too lost in what felt like an endless sea of pleasure. Though even still, everything has an end, and judging from how short and powerful her mother’s thrusts had gotten she wasn't the only one nearing the end of her rope.
Sure enough, Cup Cake’s grip on her daughter’s flanks tightened and she leaned down, biting hard on Pumpkin’s neck and making her cry out in wordless pleasure. Like the tide coming in after a storm Cup Cake came hard, exploding into Pumpkin’s womb and painting her insides with Cup Cake’s incesteous seed. At the sensation of her mother’s cum erupting inside her, Pumpkin came almost as hard, her comparatively weaker ejaculation spraying all over the floor and the cock wedged deep inside her. Her dual sex organs going into overdrive as they came harder then she thought possible.
Meanwhile, Pound Cake laid back in his small mound of pillows, languidly tugging at his cock and watching as mother came into daughter, who in turn came all over the floor. “What a waste.” He remarked, glancing down at all the spilled seed that stained the carpet. Next time. He thought to himself.
Pumpkin Cake shuddered in ecstasy, her legs beginning to wobble as she felt her mother’s shaft twitch and shoot another spurt of cum deep into her womb, filling her utterly. Yet still more came, making her belly slowly begin to grow as it was forced to take in more and more of the older mare’s cum. Within minutes she was left utterly ruined by the older mare, utterly convinced that she would be unable to truly take another lover that wasn't at least as big as her mom.
“Wow.” Pumpkin muttered. “Your amazing mom. I don't think I’ve ever cum that hard in my life.”
“Why thank you sweetie.” Cup Cake remarked, placing a kiss on her daughter’s neck. “Now, are you ready to rock your brother’s world or do you need a little bit of a break?”
“Hmm, some water would be nice right about now that I think about it, that can wait, because I don't think little Pound can wait another minute.”
Pound cake gulped, watching as his mother slowly walked back, pulling out of her daughter’s ruined hole one step at a time. Until finally, with an audible pop, her flared head fell from Pumpkin Cake’s pussy, a small flood semen spurting out onto the floor. “Fuck no I can't.”
The two futa mares shared a smirk. “Well then, we better get started.”
"Is it too late to mention I may be in heat?"
Cup Cake's jaw fell.
Author's Note
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This update was made possible by the wonderful support of:
Kali, Craig, Ozzy, Robert, Quill, JPMK, Tommy, Ivar, Mikhaila, Pacsik, Matt, Brendan, Peter, Nicky, Princess Pudding, Nofreedom, T Sparkle, Apollyon, Luckyfanisaac, Azin, Zairvin, Random_Reader, Iamunkown, Facinus, M, Nfreak, Doomgooey, Michael, Ceepert, Diokyo, Starless.
