Human and Horse, Joined of course!

I wrote a story for a futa centaur thread on /d/. Enjoy!

It's been a week since I became the leader of a tribe of centaurs. It was obvious to me, a rather headstrong trader, that the nomadic group would be more successful if they hauled goods from town to town. Traveling was something they did anyways. This fantasy world I've come to live in knows nothing of economics and aside from being a bit ballsy, numbers are my only skill. It would be cheaper than most people for them given their horses can double as their guards.


I was intimidated by them at first but it didn't take long to see they were...a bit prudish. The covered much of their human halves and the back halves of the equine torsos had a sort of "skirt" draped over it. I had a rather nice amount of gold from some profitable transactions but I knew walking around with a jingling sack was a surefire way to get robbed. Running with a band of physically imposing but technologically backward centaurs would take care of that.

They didn't trust me, of course, but they were always on the fringe of starving to death, especially during the winter. Their breeding rate was the only thing replacing those that died in the harsher seasons. The way the tribal elder's eyes widened at the profits from the first caravan's sales was wonderful. The way the elder's daughter came to my hut, something long, thick and nearly dragging the ground swaying between her bared back hooves? A little alarming.

The Ing family was the ruling herd of their group, their size much greater and seeming to be descended from draft horses from back home. Powerful and a bit more dominant than most of the other mares of the group, it was rather easy to see why they ruled them. Throbe Ing, the Elder's oldest daughter was a muscular example of her herd, her skin taut and the color of caramel on her amazonian upper half. Her lower half seemed to be a Shire stallion, her coat a shiny coal-black and the bottom of her legs a brilliant white with long, feathery unshorn fetlock fur. Overall a beautiful horse attached to a massive, intimidating and beautiful woman.

From what I could see bobbing between her lewdly exposed hind legs, she was large, intimidating and beautiful in a way you would find in many bestial porn websites, as well. I gulped as she crossed her arms, pushing up the modest breasts covered with a fur pelt "shirt" as my eyes darted from her blushing gaze to what had to be at least 25+ inches of pulsing, twitching horse cock, black at the base and mottling with pink blotches as it traveled down the virile flesh.

"I have come as a...gift from elder Pulse to the one who has seen to our prosperity. We are grateful, especially I. You have shown us bounty like only the few who have betrayed `us to become mercenaries have known while asking little of us." She stated as a specific part of me betrayed my people, saluting to a foreign government with great eagerness.

"Thrust, we have much to thank you for. I would be with you." Throbe Ing said, blushing and looking to the side shyly despite her imposing stature over me.

Now, I had come up with a new name after awakening in a cow pasture of a completely different and fantastical world. Thrust upon this new world and rather lewd, myself, I had decided upon the name Thrust. How foolish I was, to pick such a name. How typical it was that it would come back to bite me with such irony.

"N-now hold on. I was happy to help. With the profits, we can arm and armor your people better to ward off bandits and those that wish you ill. I couldn't t-take advantage of you, as beautiful as you are." I stammered, my tent pitched and my asshole quivering in fear at what I beheld.

She was not pleased by my reaction. Centaurs were stubborn and prideful prudes...despite being a race of hermaphrodites with horse cocks.

"It would be an insult to refuse that which is given freely, Thrust. You have honored us. Let me honor you in reward. Unfortunately, seeing as you are probably as endowed as the other two-leggers, I think I will need to be the one giving pleasure." She said, narrowing her eyes and stepping closer.

I audibly gulped and wondered if I could gather my things and escape before she ran me down. It was a fantasy, given their speed and strength. She was starting to step closer and the warm, familiar scent of horse was starting to fill the air. They were pretty clean creatures, having their criminals tasked with cleaning the hindquarters of their population, something they cannot do themselves due to anatomy.

Her monstrous prod twitched, growing taller...taller and longer. Oh god, I hope they'll let me ride them afterwards, as I didn't see myself walking any time soon.

Drip after lewd, thick drip of the hot syrup she produced slid from the faucet her enormous equine penis had turned into. A small puddle would be forming in a moment and I was thankful for it. It would be impossible for me to deal with such a beast unlubricated.

"I would advise you disrobe completely. I would not want to ruin our savior's clothing and I am, uhh, quite p-productive." She stammered for the first time as the blood vessels in her face made her perform a fantastic impression of a ripe tomato. Honestly, despite the statue-esque size of her, the girl was cute and bashful!

The horse cock jumping up and down below her barrel wiped that thought out. I was stuck and I didn't want to ruin relations with the first group who seemed to be nice to me AND strong enough to serve as protection. Still, I was visibly shaking as I pulled down my pants and began to slide my shirt off.

"You seem shy. Strange, after how we found you." She said, puzzled by my fear.

Before I explain, know that I was a...disturbed and perverted individual before I came here. I had been attacked by kobolds before this, already naked and starving after being mugged of everything I owned, even the clothes on my person. Thankfully, kobolds are the size of your average five year old and sported nothing more deadly than sharpened sticks. They deeply respected power and I thought, foolishly, that they could be my little minion group. I had beaten them, received some superficial wounds and had their tiny leader collapsed under me....and sported an adrenaline erection I could have hammered nails with.

Given the hatred I was feeling and the perversion, sexual and otherwise that had crafted me in life, I figured a nice, brutal hate-rape on their leader would cement my authority with them. They found me naked, snarling and hunched over a kobold and surrounded by their beaten, cowed tribesmen as I pounded him furiously.

"It...It's nothing, I am just afraid you might be too big."

"Well, it is good that I am so bountiful, then. You shall find all the lubrication you need." She stated, doing less than nothing to hold my fears at bay.

Thus, I found myself staring down the barrel of a forty fi-err, an equine erection and reaching up with trembling hands to rub over it...for the second time in my life. This time, an angry farmer and fear of injury wouldn't be keeping me from putting it inside me. It was warm, like a fat, fleshy radiator as I cupped my hands under the constant drool of hot, sticky precum. After a few seconds, I had half a handful and was spreading it over her extreme girth, having to lean forward and let the waterfall of fluids cascade over my shoulder and back as I worked it farther down her length.

"You're, uhh, rather large. I'm worried you w-will hurt me if you put this inside me." I said, shaking as I applied what might be the thing that saves my life(not my ass, though. My ass was doomed.) to the spear I was about to nigh-willingly impale myself with.

"Do not worry, my hero, I will be gentle. I know how endowed we are compared to your kind. Given what you did to the lizard men's leader, I figured you would be more receptive to this. You shouldn't give what you wouldn't receive." She admonished with a giggle, making me regret raping that kobold chieftain more with every word.

I continued to slick up the dripping log of horse meat that twitched under my admittedly skilled hands. It probably helped that I was shaking hard enough to be considered a vibrator by this time. I'd be surprised if I lived through this with an intact prostate but a stupid part of me unconcerned with my survival was a bit thrilled at the lewd pleasure I would soon receive.

"I think you have gotten it ready enough. Prepare yourself." She commanded. She was much more dominant than the centaurs I had met, at least, the ones that weren't guards. I prayed to god and meant it for the first time in my life. Please let me live through this!

Throbe pulled back, her fat length dripping constantly, from the tip and the slime that coated it thoroughly. I gulped and gathered the blanket covered hay that served as my bed so that it was higher up. I would need all the cushioning I could get.

"P-please, get me wet and use your fingers on me first. If you don't open me up a bit f-first, you'll s-s-split me in half!" I said, my voice breaking as I stammered in mortal fear of the monstrous breeding spear she sported that seemed intent on halving me ass-first like a hatchet greeting firewood.


She knelt on her front legs gently as I bent over the hay bed, ass presented to my executioner. Her hands reached down to scoop some of the preseed from her length and I shuddered and arched my back as the hot goop spilled suddenly down my parted crack. I had been fingered before. It was inevitable to any gay guy with a sex life. The human halves of centaurs were larger than their bipedal counterparts, however and her fingers were large and meaty, like the other part of her anatomy bent on ruining me. My gasp was audible and the hastened breaths afterward only made me aware of the thick scent of equine arousal starting to fill the air.


"Ooh, you sound scared, but you gasp and shiver at my touch. Perhaps you protest too much?" She teased wryly as one massive finger probed my ass and with pressure, sank into my depths a second later. My back arched and my traitorous erection pulsed. Each finger was almost as fat as my cock! She teased me slowly, obviously not as sexually tame as her brethren.

My gasps grew louder and my breathing heavier as two, then three fingers joined me, almost thicker combined than anything I had ever fit in myself. I was...a bit of a size queen and a bit insatiable, having paid quite a few BadDragon.com employees with my purchases. Minutes later, she pulled away and I gasped as cool air touched the inside of my anus, gaped by her effort. Hooves clopped past my waist and I gulped.


It was time. I swear my life flashed before my eyes when I felt something as wide as both my fists combined nudged roughly against my open asshole.


"Please be gentle!" came a squeak from me that was higher pitched than your average dog whistle. A laugh greeted my concerns and I was starting to rethink trying to escape. I had several close encounters with things that could rape-murder me if they had noticed me while I was wandering, naked and scared. I was considering going back to hug them if this was my alternative. It was as these thoughts occurred that a hoof hooked around my left shoulder and pulled at the same time as her haunches pushed.

My vision flashed in red and pain made up my world as I took the biggest cock I had seen outside of an elephant on youtube, let alone felt inside me! I heard a scream, a scream of bloody murder and it took a few seconds for me to be coherent enough to realize it was mine! She stood still, leaning down and looking at me with worry, dark brown hair cascading from her upside down head and one hand propping her up against her right foreleg. Her other hand reached down and rubbed over my chin and neck in what I assumed was an attempt to soothe me. My ass was on fire but the pain dulled over a few minute's time. I felt clogged, like I hadn't taken a dump for days after having had Thanksgiving dinner and it just wouldn't come out. The comedic thought helped me forget I was stuffed with just the head of a cock that could easily take my life.

"Shhhhhhhhh....be still and breathe. You aren't in any danger. We put some herbs in your food, things to help with your ability to stretch. Centorea help me, you feel so good...so tight!" She groaned, resisting the urge to slam forward and impale me like a pig on a spit.

"J-j-j-just don't MOVE!" I whispered loudly through clenched teeth. It still hurt, hurt a lot honestly, but I hoped it would subside more with time.

"Easy to say. Your passage is so warm. I don't know if I can hold back." She said in a breathy moan.
Faaaantastic.

Throbe Ing was my whole world right now. The telephone pole she called a penis dominated my ass. Her barrel leaned down, warm and fuzzy against my back. Her hoof and feathery fetlock fur tickling my left shoulder and neck. Her hands rubbing my neck and upper chest. Finally, the sight of her upside down face, pleasured yet concerned for the safety of her tribe's savior. The look she gave me was touching, almost. Almost enough to overcome the mostly diminished pain in my rump.

She ruined that by starting to push deeper, making me gasp like someone who had never become aware that giving birth was painful.

"NNNNGH, FUCK!" I half-shouted, half-whispered as inches of impossibly thick horse cock conquered my colon. My prostate was smashed flat after the second or third moment and the twists of my insides were forcibly straightened out as she pushed deeper.

"Mmmm, that's the plan, little one~" She groaned into my ear. Fuck my stupid mouth to death, I wanted to slit my own throat before she could go deeper, though the tingle of my prostate and the sensation of being filled was starting to overcome the pain. It was pleasant, in a way, how her flanged knob scraped my insides. They had healers in their tribe, wielders of magic that might be able to make sure I didn't look like an upside down Pringles tube with arms and legs when she was done with me.

My breathing was rough and rasping and I drooled onto the blanket as feet of fat horse flesh filled me, thick cream spurting into my insides and warming me. I felt like I was burning with a fever as something touched my strained ring that made my heart skip a beat.

Her medial ring. I was....Oh god I was only halfway there!


"I-I-I don't know if I can d-do this." I stammered almost deliriously, a madman's voice replacing my own, gibbering and raspy.

"Oh...Thrust, you're so wonderful! You'll be fine~!" She moaned, her own breathing heavy, mouth open and shivering. Her lips were thick and lovely.

"K-kiss me, please!" I whispered out, needing something from distracting me from the sensations I was awash in. She blushed more than she had before, somehow, and complied.

It was strange, kissing someone upside down. Was this how Mary Jane felt in that one Spiderman movie? Her tongue invaded my mouth almost immediately and dominated my own, larger and stronger. It was with that distraction that she pulled slowly free of my butt, making me feel hollow like the paper bag someone was using to hyperventilate into.

Hell, I felt like I was being ventilated by a hyper, so it was very fitting, unlike the size difference situation. Then she thrust.

I screamed into her mouth as she went from flare to medial ring within my abused rump, thankful she was showing more restraint than the feral horses from home that I had sucked off once in my rebellious, horny youth. From absurdly empty to fuller than I had ever been in a mere second, I felt like she was trying to turn me inside out as she churned my intestines with her gargantuan rod.

Air pushed in and out of my nostrils as I could feel her girthy battering ram actually push against my diaphragm, forcing my lungs to empty rapidly as she pounded me. My belly went taut every half second and she used my lower orifice as her own personal cock sleeve. I felt used. I felt full. I felt PLEASURE, in all caps even in my mind. Well, what little I could think with lightning bolts shooting up my body. I had cum within seconds and trembled under her vicious ass-ault, a mere hole for her to use. She pulled away from my mouth and I sucked in air like a vacuum in space, a pitiful whimpering moan continuously wheezing from me after my lungs had replenished and she gave up stroking my chest to hold herself braced against me. She needed the support as she forced me flat to the hay and hammered into me, deeper with every thrust. I thought I would have run out of ass to fuck by now.

I was wrong.

Multiple feet of horse cock slammed me brutally and I could do naught but whimper and try to breathe as I lay on my shoulders, head tilted and tears streaming from my eyes. I didn't have the reasoning capacity to decide whether it hurt more than it felt good and the feelings seemed to mix together as I played the part of the phantom mare to the breeding stallion using me.

The air was thick with the heavy scent of sex and resonated with her moans, the slick sounds of lubricated fuck meat slipping in and out of me and the occasional fart of air getting carried into me and escaping. People don't tell you about some of the embarrassing sounds during sex, but I've never been one to lie unless it really benefited me.

I was thankful that while she had restraint that her feral cousins did not, she had only slightly better stamina. I breathed a sigh of relief in between a choked sob or two as she halted sheath-deep in my body and shifted her hooves back and forth. Her flare, once a monster that was merely 3/4ths the size of a CD, seemed to grow, straining my body and creating a visible bulge in my gut as it realized it's dream to outsize a dinner plate. My eyes were wide as it twitched in my body once...twice! Then it began.

Heat. Light. It was all I saw and felt as an unbearably hot and thick soup blasted into what felt like my stomach, pumped in by the bestial half equine that had dominated more than half my body length. Her enormous breeding pole twitched in my straightened guts as she bred her mare, stuffing more cum in me than those head-sized balls should have been able to realistically make.

It was a wonderful balm inside my abused body, like the warmth of a bowl of oatmeal while one stood in an arctic abyss. Tears didn't have time to stain my cheeks since they hadn't stopped flowing down them but my cock twitched and spat, libido confused as to whether I was in danger or satisfied by a lover. I merely sighed and laid there, used and depleted.

I don't know what Throbe did between the orgasm and pulling out of me. My eyes were open wide but didn't see. Sound reached me but I couldn't hear. My orgasm was still-going and all-encompassing though my length had long since ran out of ammunition to fire. All I knew was that the centauress said something, a sound similar to the parents on Peanuts and slowly began to extract her immense cock. The flare, not quite deflated, scraped my insides, cleaning them via force and causing mountains of her precum to gush from my abused ring. It actually felt quite good, if strange. I felt empty yet at the same time full, my belly expanded around the custard-thick cum mostly trapped in it. I flinched involuntarily as her medial ring escaped but otherwise lay there breathless yet moaning pathetically. I was used up and worn out feeling and it was only after the flare escaped that I emptied, a cascade of her tar-like essence drooling down like an avalanche of molasses released from my absurdly gaping anus. My dick twitched painfully as I sagged to the hay, no longer held up by her beastly member and laying there, stunned.


"....ust, are you alright?" I finally heard as I returned to reality, concern in her weary, satisfied voice.

I somehow dredged up the control over my body to whisper in a dry, painful voice.

"Y-yeah. Get me the medicine mare, though." I croaked, sounding like I hadn't ever experienced the taste of water before. Cool air greeted my insides before my anus slowly creeped shut and I wondered if I would ever walk again or even have to deal with pooping as the food might just fall through my hollow body.

Despite all this, the pleasure I had felt was intense and a small, perverted part of me wondered if it would happen again. I heard clopping leave my tent but nothing more. The shock of the act and the weariness of the vigorous sex drained me of energy and the world faded to black.
What would tomorrow bring? Slaanesh only knew.