Slipping Backward
I mean, you should just know better than to barge into the room of a teenage stallion.
A short incest story for 4th of July. Glad I was able to keep this one actually short for once. I should definitely do some more "accidental" sex.
Thanks for reading!
Harley’s equine nostrils were flaring as he stomped his way down the second-floor hallway of his house. His mane, fur, and tail were all dripping with water as he stormed his way from the yawning bathroom door towards his son’s room at the opposite end of the carpeted corridor. He was grasping an empty bottle of mane-conditioner in his fist, where its apparent lightness further fueled his fury. The flaccid horsecock dangling outside his sheath swung rhythmically back and forth with his steps. “Lucas! Antoine! Blackmane!” He shouted in his deep, adult stallion voice as he was about to reach the door with a provocative band poster at the end of the hallway. He snorted, throwing his palm onto the brass door handle, just barely having the courtesy to turn it before slamming his shoulder into the door, forcing it to open. “How many fucking times do I have to tell you to throw out the mane conditioner bottle when you empty it?! I am sick and tired of going to the shower after you and picking up a bottle that has been fully used up!” Harley’s broad chest was heaving with frustration as he scanned the room with his gaze. He glanced at the desk at the back of the room, finding the wide computer monitor black and lifeless and the chair before it empty. He redirected his gaze to the bed on the right wall, spotting nothing but a bundled blanket and wrinkled sheets. Ninety-five percent of the time, his no-good son would have been at one of those two locations. This left the fuming adult stallion stumped for a short while, until he realized to turn his muzzle towards the left. Half of Harley’s anger dissipated in an instant as he saw the big, 37-inch TV in his son’s room displaying a video of an extremely curvy draft mare riding the lap of a smaller mustang stallion whose magnum-sized horsecock was repeatedly swallowed up by her glistening cunt. The draft mare’s large breasts bounced up and down wildly as she shook her hips, and the camera angle abruptly changed to show off an intimate closeup of her pussy being penetrated by the smaller stallion’s erect cock. Harley blinked twice while water continued to drip down his wet, brown fur. Something inside his head told him not to lower his gaze, but he was compelled to do so anyway, and he eventually did. Dropping his line of sight to the middle of the room, a mere five feet in front of him, he saw his son, Lucas. The younger stallion was visibly startled, looking at him with wide eyes and an open mouth while the dark earphones dangled diagonally on his head, mere inches away from slipping off. Lucas’ pants were pulled down to his ankles, as were his boxers. Both of his hands were grasping the thick, nineteen-inch-long stallion shaft, which stood erect and imposing from his dark sheath. The empty bottle of conditioner slipped from Harley’s hand and fell next to his hooves. A suggestive moan emerged from Lucas’ headphones, being loud enough for the dad-horse to hear. The older equine stared at his son’s erect horsecock, completely dumbfounded by the situation he had just busted himself into. “W-w-w–what the fuck, d-dad?! Why the hell didn’t you knock?!” Lucas raised his voice, panicking to the extent that an 18-year-old who had just gotten caught jacking off by their parent would. He shuffled between lowering the volume of the porn playing on the TV, trying to disconnect his phone playing said material, and covering his gargantuan cock, not really succeeding in any of his endeavours. Harley was way too shocked to respond. He could barely focus on anything aside from the monstrous pillar of equine sex, which justifiably stole his attention, even when there was some very raunchy porn playing not too far to his left. Even if Lucas was still just a young colt in stallion standards, he rocked a big fucking horsecock that could easily have pleased a mare like the one frantically moaning on the TV. It was a real stud cock. The fact that Lucas had apparently slathered the entire thing with lube didn’t make the veiny, throbbing obelisk of an equine ejaculation cannon any less alluring. Looking at it nearly made the elder stallion blush. “G-Get out! Why are you just standing there? Get out!” “S-sorry, son! I didn’t mean to… Mean to… S-sorry, I’ll leave. Sorry!” Harley turned around to leave. He was, however, too befuddled to remember or watch out for the plastic bottle he had dropped a few seconds earlier. The conditioner container crumbled under his hoof, unleashing the remainder of its slippery contents right beneath that same hoof, which prompted the middle-aged stallion to lose his bHarleyce. Before he even realized it, he was falling ass-first onto his son’s awaiting lap. “Dad! Wa-a… Oooohhhh~” Harley felt his body nudging as something temporarily broke his fall. Then that something penetrated his squeaky-clean dad-stallion tailhole, bursting to the better side of his sphincter, invading his colon in the most unforgiving way possible. His middle-aged rectal anatomy yielded immediately to the big, throbbing mare breeder that burrowed into his heavy equine ass in a split second, spreading his tight stallion asshole as wide as a mature nag’s well-used cunt. It all happened so fast that Harley didn’t even feel the gross anal violation until after he was sitting in his son’s lap and could see the bulge of his massive flare on his own abdomen. Lucas neighed as his meaty breeding pole flared inside the elder stallion, prompting Harley to whinny as well. The obtrusive, vulgar bulge on Harley’s stomach seemed to swell in size. “D-dad! I-” “I know! I know! Let me just… Ahh~” Harley moaned, trying to move his fat posterior with his son’s help, only to become paralyzed by the delayed sensation of being made the younger stallion’s accidental mare. His colon cramped violently, punching his lower body with an intoxicating mixture of pain and pleasure which stole all the strength from his muscles. A confused, but subtly blissful whinny escaped his mature muzzle as he fell back down onto Lucas’ lap, once again getting to feel the monstrous flare of his male offspring throbbing against his belly from the inside like a raging leviathan. “Hnnggg~ Daaaaaad~! G-get off m-me!” Lucas groaned, grasping onto Harley’s wide behind and trying in vain to move the curvy stallion posterior resting on his pelvis. “Haaa~ Haaa~ G-give me a… M-moment! I-I can’t…” Harley huffed, trying to search for the floor with his palms, which had gone almost numb from the shock. He still couldn’t wrap his head around just how huge Lucas’ stallionhood was. Nor the fact that it was all shoved up his shitter. Every single anus-dilating inch of it. Taking a panicked glance at his bulging belly, Harley also noticed his own equine dick reacting to his prostate getting royally squished by his son’s erection. The hot instrument of equine incest pulsated in Harley’s gut, stiffening up his mature horse dick in just a few seconds. “W-we don’t have a moment!” Lucas cried out, sinking his fingers into his father’s bountiful rump fat, trying to lift his dad off his cock. “If you don’t get off me soon, I’m going to… Going to…” A particularly mare-ish whine slipped past Harley’s lips as he felt Lucas’ flare swelling even further in size. As a stallion himself, he knew what that meant. He could not even imagine the kind of agony his son was in, trying his hardest not to creampie his old man’s ass. Harley’s hands finally found their places on the floor, but they were still far too weak for him to conjure up enough strength to push himself off. He managed to lift himself an inch or two, but ended up falling back onto Lucas’ lap, with near catastrophic results. The flare punched his gut, and he swore he could feel something spurting into his colon. He tried again, ended up flattening his rump on his son’s hips for the second time. “D-dad! I-I can’t hold it.” Lucas groaned, squeezing Harley’s butt with the kind of desperate grip that an ejaculating stallion would grasp his mare’s behind. As much as he should have been horrified by what was about to unfold, Harley found himself feeling oddly calm. Worse, he found himself feeling… excited? Excited by the fact that he was about to get a monstrous serving of thick, gooey colts blasted up his horse hole. By his own son. He knew that he should have felt more panicked or mustered a bigger effort to dislodge the phallic monster from his tailhole. But he didn’t. It just felt so good having a big, thick stallion dick ravaging his rump. And he knew the ejaculation would feel even better. He knew how intense a stallion’s climax was, and how wild a rush it was to feel it anally. It had been a while since he last experienced it. Almost twenty-five years. The exhilarating, distantly familiar feeling of an imminent equine creampie made him feel young. Like a confident college stud. Wrapped together with all the other sinful shades of the accidental intercourse, it made Harley incredibly aroused. He wanted Lucas to cum inside him. “I-It’s okay… S-son. I-I can’t get up… J-just d-do it…” Harley said between heavy breaths while his big testes churned to the tune of an impending, messy ejaculation. “Grrhhh~ W-what?” Lucas whinnied, clearly on his last strand of self-control. “I-it’s fine… Y-you can finish.” Harley sighed, placing his shaking palm onto the noticeable extrusion formed by Lucas’ flare and giving it an affectionate rub. Lucas whinnied. His hands grasped Harley’s behind even tighter. The young equine's hips bucked ever so slightly for an odd six times. And then he came. Harley felt Lucas’ hot breath on his mane as the gigantic pillar of equine virility blasted its potent discharge into his tailhole. He whinnied as the orgasmic bliss of a fat, messy father-son creampie galloped through his body. The ejaculating throbs of Lucas’ stallionhood resonated with his prostate, invoking sensations similar to what a mare would feel when they got their cunt ploughed and bred by a proper stud. Harley’s tailpipe clenched around the younger stallion’s dick as he ejaculated in a long, alabaster arc across the air, splattering his seed against the wooden doorframe nearly five feet away. It had been a while since he had cum quite as hard as he did now, when his son’s seed was busy claiming the furthest curves of his colon as its territory. Lucas came a lot. His dick continued expelling cum one throb after another, pumping an obscene, excessive amount of seed inside the older male, who just happened to be his dad. The creamy stud sperm kept on inflating Harley’s mature intestines for what felt like almost a minute straight, further rounding out the elder stallion’s gut, which was already bulging from the younger stud’s gigantic flare. Harley happened to glance down at his abdomen while Lucas was still ejaculating, experiencing a rush of submissive joy to see his own belly looking so well-bred. It brought back pleasant memories from his college days. Pleasant enough to make him cum a second time. But now it was merely a mare-gasm. A pair of weak spurts of seed shot out of a half-limp dick more fitting of a gelding than a big, gruffy stallion. He hadn’t had an orgasm like that in a long time. It felt intoxicatingly good. Eventually, Lucas’ cock did stop twitching, but only after it had pumped what looked and felt like a gallon of colts into the elder stallion’s gut. It was the kind of load that could have knocked up one and a half barns of mares in heat. But now all the potent, colt-bearing goo was having a confused swim around an old stallion’s digestive tract. “C-can you get up now?” Lucas sounded nervous and exhausted as he spoke, not realizing that he was still gripping his father’s behind like his life depended on the plump dad horse cheeks. “I don’t know… My legs feel really weak right now… But I’ll try.” Harley replied, not realizing that he had subconsciously pitched up his voice. Another habit from college he had thought he had left behind. Feeling numb from the euphoria elicited by the incestuous intercourse, Harley attempted to move his body, which felt bloated and sluggish for obvious reasons. After a bit of trying, he managed to swing his torso forward, hoping to get himself on all fours and simultaneously dislodge his son’s massive dong from his cramping tailhole. Unfortunately, his anus was doing its best impression of a desperate mare pussy and refused to let go of Lucas’ breeding instrument. The weight of his rump ended up pulling the younger stallion with it. “A-aahhh~ Dad! DAD!” Lucas moaned, lazily thumping against Harley’s back where the bigger equine’s mass pulled him. For a few moments, the father and son looked like two lovers basking in the afterglow of a successful babymaking session. “S-sorry son… This is as far as I can move right now…” Harley groaned, feeling his gut bulging from Lucas’ cum now that he was on all fours. It felt good, as little as Harley wanted to linger on the sensation. “C-can you pull out?” “I’ll try…” Lucas muttered, erecting his back after a few deep breaths by his dad’s mane. Harley felt his son’s eyes wandering along his exposed back and rump for a while before Lucas attempted to move his hips. Harley snorted, and some diluted seed squirted out of his near-flaccid cock as Lucas tried to pull out, getting his ejaculator-extraction efforts thwarted by the elder stallion’s needy colon. Another try prompted both stallions to whinny in varying pitches as the movement of the humongous stallion dick produced heaps of pleasure for them both. “Y-you have to let go of me, dad…” Lucas sighed, kneading his father’s round cheeks while his cock remained as rigid as a steel beam. “Y-you say that, but you’re still rock hard… I couldn’t let go of your dick if I tried.” “Of course I’m hard as fuck… This is the first time I’ve ever been inside a-anyone. D-do you think I could just go limp on demand in a situation like this?” Harley was slightly flattered, although he didn’t voice it. He also wasn’t quite as keen on Lucas pulling out as he had expressed. For what it was worth, he could have had his son’s humongous member in his ass for the rest of the day, savoring on its impressive girth, elephantine flare, and firm, veiny shape. He naturally didn’t voice that particular desire either. Harley shuddered and voiced a restless snort as Lucas tried moving the taut breeding baton in his colon to no avail. The young horsecock exhibited some mule-esque stubbornness in how it clung to the elder stallion’s insides, combatting any efforts to extract it from what it thought was a cozy and hospitable mare cunt. “Mmhh~ We need to deflate that flare.” Harley groaned, subconsciously arching his back as he began developing another erection from all the anal stimulation. “A-and how exactly should we do that?” Lucas muttered, fiddling with his hands awkwardly as he didn’t quite know what to do with them. “Well… You know.” Harley muttered, wiggling his big stallion butt against Lucas’ slender hips. He felt an immediate response from the younger equine’s cock, which throbbed in what was most definitely an affirmative response. “R-really? Can you handl- I mean, are you okay with me… Doing it? By myself this time?” Lucas asked, sounding slightly excited by his father’s proposal. Harley tried to play reluctant by voicing a dramatic sigh. Meanwhile, his cock had grown fully erect again, and his tailhole was cramping around Lucas’ girth with palpable vigor. “I suppose we don’t have much of a choice… The only way to get rid of a stubborn erection is by fucking.” Lucas swallowed, and Harley could feel his meaty fuck totem casting another throbbing vote in favor of the proposed solution. Only a small nudge would get the younger stallion on board. “How about it, son? Are you man enough to fuck your old man?” Harley asked, reaching back and spreading his ass out so that Lucas got a full view of his dad’s stretched-out anus with his big, fat stud dick lodged inside. A few seconds passed, after which Lucas grabbed Harley by the tail. His young hips began smacking against the elder equine’s hefty hindquarters. Harley voiced a mare-like whinny as the gigantic equine pole started plunging back and forth in the eager caress of his hole. As expected, Lucas was far from gentle in the way that he fucked him, which was exactly what Harley had wished for. The young stud’s thrusts bore the kind of restless, virgin energy which Harley remembered from his college days and that still drove him wild now, twenty years later. It was the ultimate expression of a stallion’s lust, pounding mindlessly at any available hole placed in front of the rutting equine. An act devoid of any reason or thought, and one that only obeyed the very basic instincts a male possessed. It was raw, it was rough, and it felt so fucking good that Harley could barely contain himself. Harley’s big stallion rump quaked as Lucas’ slender loins hammered against it, performing a bouncy mating dance to the dominant male who ploughed the big cheeks like a proper workhorse out on a farm. The slutty, mature tailhole milked the gargantuan cunt-stretching tool over and over as it traveled back and forth in its warm, quivering depths, flaring every couple of thrusts as another orgasm already beckoned the younger stud. The sheer size of Lucas’ cock invoked some vivid memories of one of Harley’s lovers from his youth: a gorgeous, curly-maned friesian stud named Cameron who had been the equine dad’s frequent hookup during his days as a student. His cock had been just as massive, and his hips just as rough and relentless in their pounding as Lucas’ were. Being a mare to a stallion like him, like Lucas, felt good. It felt natural. A shaky neigh emerged from Harley’s muzzle as Lucas pulled on his mahognay mane and gave his wildly wobbling ass a firm spank while his fat stallion testes kept on pummeling his dad’s behind. Yup. Lucas did indeed have that natural stud instinct which drew in faggot mares and real mares alike. Once he would gain a bit more mass and grow a few inches taller, he would be a real fuckmachine, wrecking tailholes and claiming cunts as he pleased, when he pleased. He would have to work on his attitude, of course, but a few more instances of him embracing his real stud self should develop it for him nicely. And Harley wouldn’t mind helping his son with that one bit. Lucas’ flare terrorized the back-curve of Harley’s colon as it warned the elder stallion of the thick load it was about to dump inside his lower intestines by almost doubling in size as it hammered on the inside of his abdomen. Just as a proper mare would, Harley got ahead of himself and ejaculated from the sheer thrill of anticipation, knowing that even more colts would be sloshing about in his belly in just a few moments. The orgasm traveled through his body in waves, each prompting his cock to jump and fling out its essence, and his tailhole to cramp and quiver around the hot pole of stallion meat that was presently demolishing it. When the second flood of young, hot stallion cum slammed into the inside wall of his anal cavity a few seconds later, Harley came again, having just barely finished squirting out his previous load. The strong, juicy throbs performed by his son’s magnificent mating instrument permeated through Harley’s whole adult stallion physique, stimulating his inner mare in a way no other sensation could. There was no feeling more orgasm-worthy than a horny, well-endowed stallion ejaculating their heart out in the tight, loving grasp of a needy mare hole. The pleasure overwhelmed Harley in an instant, and he soon only felt the fierce spasms of his son’s enormous cock and the thick stallion swimmers surging up his rectal anatomy. And just as before, Lucas came a whole bucketload, sowing a good half a trough of colts into his father’s non-existent womb. The small second-floor room of the large suburban house started reeking with the pungent scent of potent stallion seed. The ivory impregnation goo was spewing out from the stretched sides of Harley’s sphincter as Lucas continued to pound his ass even as he was ejaculating. It leaked down the elder equine’s thighs, splattered onto his rump, and drooled down onto his wildly swinging sack, which was being spanked by Lucas’ bigger pair of equine cumtanks in rhythm with the dominant stud’s thrusts. Lucas was really out to make a proper mess of his dad, and Harley was more than happy to oblige. The intense father-son fornication continued for almost ten more minutes, during which Lucas dumped at least four more loads inside the bigger stallion, ejaculating what must have actually been close to a gallon of frothing, hot stud sperm into his own father’s gurgling guts. He was absolutely relentless, fucking Harley with an almost animalistic passion, usually only exhibited by stallions in their sexual prime. Granted, Harley was also throwing his ass back at his stud son with the kind of slutty enthusiasm only displayed by fillies in their early twenties, which certainly helped motivate the frantic motion of Lucas’ loins and milk his hot, hard stallionhood of its plentiful stud jizz. Lucas’ final load made Harley black out for at least a few moments, of which the exhausted dad horse could only faintly remember the agonizingly pleasurable, messy pullout and the loud, sinful sound which his hole had produced when the big fat flare had left its caress. The next time he came to, he had his snout buried in Lucas’ sheath while he was apparently in the middle of licking the huge mare tamer clean. Another slutty reflex from his old self. Harley had just scooped up a big glob of thick and tasty stallion sperm with his tongue when the veil of nostalgia and lust was abruptly yanked away from his mind, and he realized what he was doing. The two stallions’ eyes met as Harley looked up at Lucas, who looked like he had just experienced the same shattering of an erotic illusion as his dad. They both blushed. Lucas half-erect crotch monster twitched and drooled some leftover jizz onto Harley’s shoulder. The dad-stallion’s gaping tailhole winked, and a considerable load of Lucas’ liquid offspring exited his anus rather noisily. Harley promptly backed off from his son’s groin, being noticeably shaky getting onto his hooves. Gravity was working hard to push more of the younger equine’s colts out from Harley’s asshole, and the abrupt shift in position prompted a hefty trail of the thick stuff to run down along his inner thigh. He saw Lucas notice it, and they both blushed again. “I’ll uh… I’ll go take another shower.” Harley cleared his throat, having to search for his usual, deeper tone for a few syllables. “Y-you should probably clean this up. The towels are in the hallway closet, as you know…” Struggling mightily to keep the rest of Lucas’ multiple loads inside his tailhole, Harley made a swift retreat to the door. There, he stopped and took one last look at the confused, embarrassed, yet satisfied stud son of his. “Listen… This stays between just you and me, alright?” Lucas nodded his head nervously. “Good! Good… Then I’ll uhh… I’ll go take that shower then…” Harley muttered, stepping out into the hallway and closing the door to his son’s room, which now stank to high heaven of stallion cum. “Jesus Christ, that colt…” He grumbled, cupping his right hand around his anus, which was leaking Lucas’ seed in heaps as he waddled his way back towards the bathroom. His belly was bulging like a mare’s that was only a few weeks out from giving birth. “It’s like he was trying to knock me up with how much he came…”