Donkey Destiny

Story by Leo_Todrius on SoFurry

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Donkey Destiny

Written by Leo_TodriusSupported by my PatronsThere comes a time in every young man's life where the creature within stirs, waking up to a life of carnal pleasures, bending the social morays of society to find a true way to donk out... Well, not every young man's life. Maybe it just runs in the family?I would like to thank my patrons for their generous support that made these stories possible. Without them, I wouldn't have been able to dedicate the time and effort to create them.

If you would like to be a part of the community that helps bring these stories to life, visit https://www.patreon.com/LeoTodrius and transform the future!


Donkey Destiny Written by Leo_Todrius Supported by my Patrons The last day before winter vacation... There was a thrill to it, an excitement, a glee - and then the moment had come. The bell had rung, the students had dispersed, and Jace had started the long walk home. His curly dark brown hair was pent up under his white hooded sweatshirt, his freckled face accosted by the cold temperatures, his dark brown eyes looking out at the falling leaves while he held the straps to his backpack, trying to alleviate the pressure.

Somehow being in the vacation already felt troubling, like the clock was ticking, like time was running out. Jace felt like an idiot. His vacation had just started, but things had been strange the last several days. He'd felt anxious, restless, melancholy. He'd had a few more growing pains, but not in ways he was used to. His muscles would cramp, even his pucker seemed to be tingling off and on.

Jace walked down the street, down the hill, took the curve, crossed through the park, and finished his walk to finally reach his house in the cul-de-sacs. As he made it down his street, his eyes widened, spotting the beat up red truck at the end of his driveway. Jace's heart fluttered and he broke into a sprint, closing the final distance, bounding across the muddy front lawn before he flung the front door open, unceremoniously dropped his backpack and kicked off his muddy shoes before he surged into the kitchen.

Standing there was his older brother, wearing an old long sleeve t-shirt, baggy cargo pants and a baggy beanie to keep his longer brown hair in. He had a stubble beard that was thicker than the last time Jace had seen it, and he flashed a bright grin seeing his little bro.

"Jace!" he offered his brother his arms.

"Joel! You didn't say you'd be back so soon!" Jace said, hugging his brother. Joel wrapped his arms around his little brother, holding him for a long moment, feeling that heat close to his body before finally letting go.

"My professors were nice enough to let me do the finals over email, so I didn't have to wait." he said with a grin, though his look tempered a bit, "And... mom's got her work stuff all over my old room, so I was wondering if maybe I could crash in your room for old time's sake?" Joel asked.

"It'll be tight, but I think we can make it work." Jace smiled. Joel clapped him on the shoulders with a hand before giving him a bit of a shoulder rub.

"How are you doing? School going okay? Life?" Joel asked. Jace blushed a bit and shrugged.

"The usual I guess... Okay grades. Could be better but I get distracted." Jace said. He wasn't sure how to bring up the fact that he felt like his body was going a bit off the rails at times. Joel nodded a bit.

"Well, now that I've gotten your permission, I think I'm going to go drag a cot into your room and get set up." Joel said. Jace grinned.

"I can help!" he said eagerly, moving after his big bro down the hall.

**** With winter in full force, the sun had set before dinner had even been served. The sounds of plates getting set out and silverware clinking could be heard even in the bathroom, but Joel needed a moment alone. He closed and locked the door and reached up, pulling his beanie off his head. His parents though he had a full, luscious head of hair still... but now it was more of a long, soft mohawk. Most of the hat's space had been devoted to his changed ears, stretched out into long, furry points, looking more animal than human.

Joel exhaled with a bit of relief, moving over to the toilet, lifting the rim. He loosened his belt, unzipped his pants and slipped his hand in to the warm confines of his undergarments, wrapping his fingers around a particularly weighty, massive tool. As he drew it out, the flesh was a deep ebony black. He slipped out six inches, eight, ten, and then finally the blunt, flared tip popped free of the underwear.

Once more a sigh escaped Joel's lips as he held out his donkey dick. His other hand dipped down, freeing equally dark, massive orange sized balls to hang free. Slowly a long tail slithered out of his pants and flicked behind his ass, and everywhere that flesh should have been visible on his legs, downy brown fur was there instead. Joel shifted from side to side, feeling his orthopedic shoes gripping his hooves, hiding the secret.

It had taken a lot of work to mask himself, work that seemed particularly hard after he'd lived so freely. He hadn't told his parents that he'd dropped out, he certainly couldn't tell them that he'd made a small fortune shooting a porn movie. He'd gotten his own place, a place he didn't have to hide himself. He walked freely on his hooves, cock out, jacking off and being a general jack ass of a donkey satyr.

It had hit him pretty fast at college. Each time he jerked off, he felt the urges, and then the changes. He'd tried to stop, but it had been addicting. The more he did it, the more he changed. He knew it had to be part of him, an animal waiting to get out... now the only question was if his brother was like him, if he needed to feel the power of the bray, to let out his animal... and if they could be together.

Joel closed his eyes and used both hands to stroke his cock, slipping up and down, faster, harder, imagining his brother admiring his cock, worshiping it, drinking from it... Yeah, his brother and him bonding in that taboo way, sharing the change, the blessing, the destiny. Joel grunted, getting sweaty, thrusting into his hands as his fingernails started to darken, turning from pearl to brown and then black.

He threw his head back, his donkey ears twitching. He snorted and grunted, stomping one foot as he jerked off. His long, black donkey like cock began to spurt out clear globs of precum before finally he shuddered.

"H... Hhh.... HAW! HEEHAWW!" Joel brayed as he came, shooting out virile jets of cum, the semen splashing into the toilet bowl for easy cleanup. He came for several moments, though his heart skipped a beat as he heard a thump on the door.

"Are you alright bro?" Jace asked from the other side.

"F... Fine, just fine! Need a few more minutes though!" Joel called out.

"Alright, just be careful!" Jace chuckled, walking away. Joel panted, eyes shut, imagining what it would have been like if his bro had burst in and seen him like that in all his manly prowess... and his cock hardened and his balls churned, ready for another round. Joel bit his lips. Maybe one more round wouldn't hurt before dinner.

**** Dinner had come and gone, leaving the boys to their evening. Their father was heading out to work. The headlights of his truck hit the living room window and then dimmed as it pulled away, heading into the night. Warehouse work was hard, the hours ungodly, but their father managed to keep a pretty good income, enough that neither boy had to worry about college - at least as far as he knew.

Jace had dropped down onto the couch and turned on some shows while Joel had decided to help out. He'd discarded his shirt, revealing his hairy chest, pierced nipples and a bit of a belly as he cleaned up the table. He couldn't help but clear his plate, and the other plates, of any last scraps as he rinsed and set the dishes in the sink.

Every so often Jace would look up at his brother. He was a little mystified why Joel had taken off his shirt but not his hat, but he found the nipple rings kind of cool. He was glad his brother seemed confident, cool, collected... and eventually Joel sunk down on the couch next to him, spreading his legs out and leaning back, reclining extra low.

Jace wasn't sure what looked out of place at first, and then he realized it was the lump in between his legs. No, more than a lump, more than a tent, it was almost a gratuitous bulge. Jace blushed and looked back away, directing his focus at the TV. Joel hid his disappointment that his brother hadn't been stuck staring, but at least he had noticed. There was still hope.

**** The lazy evening had led to an early night. Jace was in bed and Joel was on his cot. The curtains were tight, the room in virtual blackness. Jace yawned, trying to fall asleep but caught in the limbo between the two worlds. He hesitated and shifted, hearing a soft, rhythmic rubbing sound. Maybe his brother was rubbing his feet against his comforter.

"Joel, are you awake?" Jace asked softly.

"What is it, bro?" Joel replied. The rhythmic rubbing sound slowed.

"Have you ever felt... I don't know. Different?" Jace asked.

"Well, it wasn't easy before I came out... Having to admit that, especially to dad, it made it pretty tough. Before that was even worse though. The constant weight, the constant pressure." Joel said, "I hope it made it easier on you."

"It did..." Jace replied, "Mostly. I think dad was still sad he wouldn't get any grandkids unless we donated or adopted or something. But I think he understood." Jace replied, "But that's not quite what I meant. I meant more like... physically." he said softly. Joel was quiet for a moment more.

"Yeah, I guess... When I got near the end of high school and started college. My body didn't know what it was doing. Aches, pains." Joel said. Jace nearly sat up in bed.

"Really? You too? What happened? What did you do?" he asked. Joel smiled in his cot.

"Well, I started out having to jack off. All that pent up energy, you can't keep it trapped."

"What?! Really? That's... that's the secret?" Jace asked in shock, "Isn't it messy?"

"Bro, that's like... half the point." Joel smirked, "Besides, I'm doing it right now."

"What?!" Jace asked, jaw dropping.

"It's a natural part of life, bro. Those growing pains, that aching and throbbing... You got something in you trying to get out. There's no denying it. You're eighteen now, you're a big boy... It's part of life. You don't have to be scared of it." Joel murmured.

"It really helped?" He asked. Joel grinned, his donkey ears spread on his pillow, his hooves sticking out from the bottom of the bed, his furry legs brushing the comforter as his hand rose up and down his huge black donkey dick, pre leaking out of the tip.

"Oh yeah... It helped out. You just gotta give into it bro. Let loose, whip out that prick." he said. Jace hesitated before he finally reached down and drew out his human cock. He felt it in his hand, half hard and rubbery. As he played with it, though, it started to get tougher and tighter, swelling and hardening. He murmured, biting his bottom lip a bit.

Across the room, in the darkness, Joel was lifting his hips, bucking into his hand, feeling his immense donkey dick throb with heat and lust. He moaned, tilting his head back, panting. His tail wriggled beneath him, his balls churned. He was so close, literally and figuratively. He bucked hard enough that his bed started to lurch, sliding back and forth with each thrust.

Jace listened to the sounds, amazing and surprised. His brother was such an animal! But he didn't have to feel envious. His brother never lied to him. If Joel could do it, so could he. Jace wrapped his fingers around his shaft tighter and started moving his hand up and down, faster and faster, working his meat. It felt so good, so right. What had been discomfort, confusion and doubt started to become pleasure, like valves were being released and all this pent up energy was surging out.

Blood rushed to Jace's cock, flooding into the flesh, making it firm and tighten. In moments it was rock hard, jutting upwards... but the flow hadn't stopped. As Jace jerked off, listening to the wet, sloppy sounds across the room, he bucked his hips harder and moaned softly. The sound was like music to Joel's ears. He hissed, panted, and then brayed.

"HAWW! HAWWW! HAWWW!" Joel moaned, his equine dick unleashing his musky cum all over his furry chest and scruffy face. He opened his mouth wide, gulping down his seed, imagining it was his brother splashing his face. He shuddered hard, cumming and cumming with no end in sight. The musky smell started to fill the bedroom, filling Jace's lungs. It was so strong and manly and weird and wonderful. His pucker pulsed and throbbed between his butt cheeks, his nipples ached, and his cock began to spurt.

Pearly seed lanced out of his shaft, showering down across his groin, but as it came out it started to shift from its clean and pure pearly cum to something more feral, more animal, coming out thicker and stickier, yellowing slightly. Jace moaned, going limp on his bed, panting hard. He felt amazing. Even his ears were tingling at the tips. He murmured, trying to thank his brother, but his eyes rolled into the back of his head and he passed out. Across the room, Joel just smiled, knowing that they'd taken the first steps together.

**** Living with brothers had many benefits, but one detraction was limited bathroom time. Jace had decided that getting up early was the best way to make sure he had plenty of time in the shower. He squeezed in quietly, trying not to wake anyone else in the house. He gently shut the door before flicking on the light, leaned over to turn the shower on high, and while the water heated up he went to pee.

Jace lifted the toilet bowl lid and dropped his boxers, pulling out his still mostly hard cock. He was used to it being semi-hard if he was trying to hold in pee, but this was some next level stuff. He bore down and a yellow stream shot out with surprising strength... and it felt kind of amazing. Jace murmured again, the stream intensifying and widening. He was peeing like a racehorse.

After a few moments the stream ended, though his cock hadn't softened at all. If anything, it felt harder than before... and it was pleasantly huge. Jace wondered if that was one of the things Joel had meant. If he gave himself a little attention, his body might reward him. Jace moved to step into the shower but hesitated, looking at the mirror. He noticed a bit of darkness in his reflection and reached up.

For years Jace had tried to look more manly, to develop more muscles or grow out a mustache or anything - and he had failed. And yet, in one night, a soft patch of fuzz had grown across his chin. The tips were clear, transparent, but the hair had started to darken at the root, taking on his dark brown tone. He rubbed a finger across it. It felt soooo soft he kept petting it, and as he did, his cock wobbled and stretched even longer.

Jace dropped his boxers and stepped into the shower, feeling an odd euphoria slipping over him. He pulled the curtain shut, letting the hot water hit him as he wrapped one hand around his cock and used the other to pet his chin fuzz, stroking both, petting both, starting to work his hips forward and back, forward and back, tipping his head back as he moaned. His cock stretched another centimeter, then another, the mushroom shaped head slowly blunting as his ears tingled again, taking on faint pointed tips. Even his teeth were starting to flatten a little.

The eighteen year old's pert muscled ass started to push apart, letting air hit his pucker. It responded by tightening and toughening, the peachy flesh darkening with spots of brown that then turned black, as if it was some sort of target. Jace moaned more, thrusting into his hand, grunting. His balls slapped against his thighs, dropping lower and lower with each swing, the balls swelling to the size of kiwis as they flooded his system with more hormones.

The shower was trying to wash him clean, but his mind was getting dirtier. He thought about jacking off with his brother again... not just in their room, but maybe even his truck, or out in public. Two bros going at it... He moaned harder, panting, breathing hard until his pants and moans merged into a soft 'ha' sound... Each exhalation was another 'ha', another thrust, another fantasy... and on the other side of the bathroom door, Joel was so pleased.

His donkey dick was out again, his donkey ears sticking out from his mohawk. He shuddered, feeling energy surging through him. At first he thought it was just the kink of getting his brother to be more of a man, but now he realized it was more than that. Welcoming another donk into his herd was helping him continue his own change... his cock was getting bigger, his balls bigger, his mane longer and darker, and his beard thicker. What had been a stubble beard was pushing out into actual hair, the mustache thick above his lip, his cheeks fuzzy and dense, his chin disappearing beneath the mane of hair.

Joel brayed softly, thrusting hard into both hands before he pulled his immense cock aloft, stuffed the tip into his mouth and started to guzzle down his cum. He couldn't spray it all over the hall, it'd be too hard to clean up... and it tasted so good. He gulped down his donkey seed as he listened to his brother going at it in the bathroom, knowing that life... was going to be very good for both of them.

**** Winter vacation was ticking by, but for Jace it felt like it was a blissful eternity. Their parents had to work extra before the end of the year, leaving him with his brother most of the time, and that was just the way they liked it. In a few days Jace felt like he'd mastered the art of masturbation. They did it at night, in the day, in their room, but now the hot, wet, lewd sounds came from the living room beneath a big blanket draped across both brothers.

Joel had brought out one of his porn videos of some gay guys going at it and Jace had found that rather stimulating, although he blushed a bit when he thought that his brother and him were hotter looking than the guys on the video. Jace kept glancing away from the video, looking at his brother, admiring how fast his brother could grow a beard... and probably hair too. His big beanie seemed even fuller than it was even the night before.

On the video the boys were practically ricocheting off of the walls, pushing against each other in their desperation to make love until one was pinned and the other wriggled his pants down, getting a face full of cock that he soon took into his mouth, bobbing up and down, faster and harder. The other's moans were palpable, though again, not quite as hot as Joel's. Jace thought of Joel's unique moans... and a strange sensation came over him. He wanted to hear it again. Joel's back suddenly stiffened as he felt another hand on his cock.

"Bro..." Joel murmured. Jace blushed and smiled.

"Dude, you're so thick! That's amazing..." Jace said, starting to slide his hand up and down, faster and harder.

"Jace, I... I..." Joel panted louder. Jace grinned, getting more into it.

"Yeah, big bro's hung like-" Jace hesitated as he got near the head of his bro's cock. It didn't feel like he expected it to. It felt as wide at the end as it did at the base. There was no slope, no curve. His hand slipped over the tip, feeling how flat it was, and how wet it was. Jace reached for the blanket.

"Jace, no!" Joel called out, but it was too late. The blanket came back, revealing Joel's powerful tower of a donkey dick jutting up from furry balls. Jace's eyes widened in shock. He sat there for a moment, uncertain if what he was seeing was real. Eventually he swallowed a bit.

"What... what happened?" He asked. Joel blushed.

"It... It was a gradual thing, well, sort of. I went off to college, I started being more free. As I experimented, I started to change. I... woke something up in myself. I became a donkey satyr." Joel said. Again, Jace was stunned and in disbelief.

"A what?" he asked, "You've gotta be playing."

"No, no, it's... it's true." Joel said, reaching up. He started to pull at his beanie, sliding it up. Two long, donkey like ears sprung out, rising up on either side of a thick, bushy mane. He tossed his beanie to the side and reached down, tugging his pajama pants down to reveal furry legs. Jace looked at his brother in a strange mix of emotions; fear, envy, shock, confusion and admiration. Jace reached out and pet one of Joel's ears, then down to pet the fur on his leg, then looked back at him. He suddenly started to pale.

"My... my cock grew a bunch yesterday, and... and... I..." he reached up and pet the fuzz on his chin. Joel grinned at that and reached up, using his thumb to stroke Jace's budding goatee.

"Whatever this is, it's been in us the whole time. It isn't something I caught. You're waking up to your real self, to your donkey destiny." Joel said, "It's beautiful and it's wonderful and you're going to love it." Joel whispered.

"I am?" Jace asked sheepishly.

"You are. Your boyfriends are going to love it. You'll be so big, able to go all night and all day long." Joel said. Jace murmured a little at that.

"Do you have lots of boyfriends?" he asked. Joel shrugged.

"I mean, I guess... Off and on." Joel said.

"And they all kept the secret?" Jace asked. Joel nodded.

"Yeah... I mean, otherwise they'd never get a taste of this again." Joel grinned, patting his huge cock.

"Does it taste good?" Jace asked. Joel was a little caught off guard at that.

"I mean, I like it." Joel said. Jace grinned.

"You've tasted yourself?" Jace smirked.

"Hey, if it's in your face all the time, how can you resist?" Joel asked.

"You're right..." Jace said before he moved forward. Joel's eyes widened, but then went much wider as he felt the tongue at the tip of his cock. Jace gave his brother's huge cock a bit of a slurp, his tongue teasing the urethra, tasting the remnants of previous loads. He moaned softly, licking harder, practically trying to get his tongue into that slit before his mouth came down around the immense shaft.

Joel bucked, panting, his tail flicking behind him. His hooves wriggled in his shoes, threatening to break the braces that held them place. Jace started to move his head up and down, bobbing, feeling a connection to his brother that... had always been there, but never explored. They'd been close, rarely fought. He always admired his brother and was jealous when he'd play with older kids. He wanted to be with him, in more ways than one, and now he was... now he had a chance to be the best one, the one his brother always wanted.

Jace went deeper, taking in more and more of the donkey dick. It slid over his tongue and butted up against the back of his throat. Jace felt a bit funny managing so much, but as he slowly slipped off the couch and moved around in front of Joel, he got a better angle to suddenly plunge down, letting the cock hit the back of his throat and then slide down into it. The wriggling, pulsing, tight tube wrapped around the big meaty ebony black cock and Joel went wild.

Joel threw his head back, drooling into his beard, his eyes glazed. he started lifting his hips, thrusting into his brother's throat, picking up speed. All morality, all trepidation left. This was how it was supposed to be. He was a donkey satyr, this was his mate, his brother, his family, his everything. His scalp tingled as his hair began to stiffen, the loose and wild Mohawk of hair slowly tightening, rising up, coming into a fine crest. His ears sprung up as well, stiffening, getting stronger. They were several inches long, but now they were most decidedly donk.

Jace inhaled the scent of his brother's cock. It was so manly, so musky, so perfect. He felt the cock fill his throat, plunging toward his stomach. He wanted it, all of it. He moaned hard, the vibration heading down his brother's member. Joel panted, feeling that strange energy inside of him building as he took on a mate more fitting than any boyfriend before. This wasn't just any boy toy, this was someone with a donk satyr inside of them too.

Joel grunted and moaned, his face tingling as his beard thickened, the short growth becoming bushier. His mustache dropped down over his upper lip, the hair hanging from his chin descended down centimeter by centimeter, getting bulkier and thicker and longer. The hair on his chest was thickening as well, becoming a downy soft patch of fur between his pectorals - pectorals that were getting meatier, bigger, fatter.

The older bro started to pant, each pant sounding like a soft 'hee' or a 'haww'. His stomach rippled as the muscles defined into tightly packed abs... and then the power trickled down, his ass cheeks growing larger, fatter, rounder, more muscled. They bloated out, his hips rounding before his legs started to thicken. His already fit and strong legs started to get meatier, thicker, like a real powerlifter. They were trying to become trunks, supporting his weight.

Jace continued to moan and murmur around the cock in his throat before he got his lips down lower, impossibly low. At first he didn't understand how he had managed, but the growing heat in this throat had made him realize how. He had changed, he had altered. His body was designed to take that cock however his brother wanted to give it... and that realization sent an electric charge down his body.

The eighteen year old nearly yelped against the cock in his esophagus as his pucker suddenly tingled, the ring turning jet black. It bloated out, growing wider and wider. His ass cheeks pulled apart completely, exposing it for the world to see as a wriggling new tail slipped out from his waistline. It flicked and twitched as it grew, but Jace could barely feel it. Instead he felt his colon shifting, the intestines wriggling and changing, uncoiling, thickening, shortening. His ass was redesigning itself, taking on a more direct path, making plenty of room inside as new muscles formed.

The first throb came from just inside his pucker, but then it came from a few inches deeper in, then deeper still. His ass was warming up, starting to get slick with some sort of natural lube... and it was throbbing, aching, pulsing, trying to grab onto something that wasn't there and pull it deeper. Jace knew what he had to do. He pulled back, inching off of Joel's long, long cock until finally it sprung from his mouth with a pop, a long trail of saliva connecting it to his brother's meat.

Joel went limp against the back of the couch, panting, moaning, thinking for a second he'd missed his own orgasm, that it was over... but the couch shifted as Jace stepped up onto the cushion on one side, put his foot on the other, and lowered himself down. Joel howled as he felt a spongy, muscled, hungry asshole press against his cock. Jace shivered happily as his pucker began to swallow his brother's cock and the muscles inside actually grabbed onto it, pulling it deeper.

Jace's eyes slipped shut as he took in an inch of his brother, then two, four, six. It kept coming, sliding into him, and Jace loved it. He got about half way down when he pushed against the couch and slid back up. His ass fought him, wanting to pull it deep, to fill him to the brim with it. Jace started to ride his brother, sliding up and down, grinning ear to pointed ear. He could see his brother had gotten more manly when he sucked him off, he could only imagine what this would do.

"Fuck me, bro. Make me yours forever... Make me like you!" Jace said. Joel's eyes snapped open, but they weren't quite normal. The black in them had spread wide, filling his eyes. He was a beast, an alpha, a satyr donk ready to lead his herd. He grabbed onto his bro's hips and thrust up, starting to buck wildly, to fill him deep. Jace threw his head back, panting, moaning, and then braying.

"HAWW! HEEHAWW! HAWWW!" Jace howled. The power ripped through Joel, and then his shoes. The braces snapped and shattered, the leather and binding popping before his hooves erupted, growing wider and larger. They were soon the size of dinner plates and getting bigger. Joel's beard continued to grow, pushing out of his face. His lips nearly disappeared beneath the mustache that was robust, and the hair on his cheeks swept out, curving down to join the flow dropping from his chin and the bottom of his jaw. He had a lumberjack beard, then a mountain man beard. It contrasted his mohawk, his fur, making him look rustic and manly like a real dad type... and Jace loved it.

The little bro leaned in, his lips plunging into the beard to find his brother's. As he did, he was rewarded with a huge, strong tongue invading his mouth. He sucked on that tongue, letting it have his way with his mouth just as his brother had his way with his ass. He rode it hard and deep, moaning as his pucker pulled in more and more until suddenly he was all the way seated on his brother's lap. Jace broke the kiss and looked down at his bulging stomach, then back at Joel. They looked at each other for a long moment, their bond unspoken until Joel threw his head back.

"HEEHAWWW! HAWW! HAWWW! HAWWWWW!" Joel brayed. Each bray came with a jet of thick, hot semen flooding into Jace's stomach. Jace shuddered with each load, his body throbbing and pulsing with vitality. His ears shifted from peach to tan to brown, fur erupting from the back of them before a lighter sandy colored fur filled in the insides. They rose up higher and higher on his head.

The hair on the sides of Jace's scalp started to thin, becoming less substantial, but the hair down the center of his scalp darkened, thickened, and grew longer. What had been a bit of bed head became an unruly mohawk, and it was growing by the second. He moaned happily, braying, riding his brother's spasming cock, moaning as his own began to ache and throb and grow... and grow... and grow.

Inch after inch oozed out of Jace's groin as his cock stretched longer and harder. The veins throbbed, and around them the flesh darkened - at first to red and purple, then black. The coloring swept around the length, coating it from the middle out, reaching to the tip and the base. For a few moments it looked like the cock he knew, only black and too big, but then Joel's hand wrapped around it and began to stroke... and a second hand joined it, both fitting on the length.

Jace howled and writhed, feeling his belly filling with his brother's sperm as his bro manhandled his cock too. Each stroke up stretched it longer, and each thrust down made it fatter and thicker. One particularly hard series of yanks caused the edges to push up faster than the center. The mushroom shaped tip disappeared as the cock blunted, coming to a flat tip. Joel snorted happily, smelling his brother's scent as he looked at his donkey dick, but he was far from finished.

Joel slowly got up, holding Jace on him. Jace wrapped his legs around his brother's waist, letting his huge cock anchor him in like a brace... and then he started to bounce, letting Joel's donkey dick churn the cum butter in his belly, pushing it back and forth and all around. Joel grunted and snorted again, thrusting with his brother on his lap, bouncing him up and down, picking up pace as he stood on his towering hooves.

Jace continued to bray, throwing his head back, his mohawk tall and proud... but soon he felt a friction, a heat on his legs. It was like stubble, but thousands of times over. His skin was getting redder before new hairs burst out all over his legs, pushing out centimeter by centimeter. Jace tried to wriggle his toes, to flex them, to bask in the pleasure, but they were stiff and hard to move. He looked down, feeling mixed between horrified and turned on.

The skin between Jace's toes had gotten sticky and gooey. The webbing between them worked out from the sole to the tip, but then as it reached its destination, it began to tighten again. His toes were pulled together and locked in place just in time for his toenails to start stretching outward, the keratin slipping from one toe wedge to the next, oozing together, coating his foot and re-hardening into his first hooves.

A long tail began descending down from Jace's ass, wiggling and waving beneath him as he was fucked. Jace panted hard, eyes glazed with pleasure. Joel leaned down and licked the tuft of hair on his brother's chin, encouraging it - and him. He fucked faster, harder, deeper, grinding like a madman in heat. He came for what seemed like an eternity, but then realized he had one last act to complete their bonding.

Joel brought his bearded face down, opening his maw wide, taking in his brother's cock into his mouth even as he fucked him. Jace writhed and howled as he heard and felt the sloppy sucking his brother did, bobbing up and down on his equine tool. Jace thrust up and dropped down on the cock on his ass, pinned between infinite pleasures that his brother offered. Jace's donkey changes were solidifying, taking deep root, awakening fully as he threw his head back and started to bray.

The elder brother murmured, tasting the salty pre, then cum of a human... but the semen started getting thicker, stickier, hotter and muskier as it was the cum of a donk satyr. Joel swallowed it down with glee, savoring every drop, knowing he had fully welcomed his brother into the new life - the life they were meant to lead.

**** After such a wild mid-day, the brothers had passed out on the couch in each other's arms, cuddled under the blanket. The sleep had been deep and restorative. It had also taken too long. When the growl of a truck engine came up the driveway, Joel's eyes widened sharply. He stumbled to his hooves and looked around, finding his hat. He pulled it on and grabbed his pajama pants, yanking them up - although that too presented a problem. With the recent growth, he had to choose between showing off his hooves or his tail. He decided to pull it up over his tail.

Shadows fell across the curtains of the living room. They were almost out of time. Joel grabbed Jace's shirt and tossed it at him to cover his head before pulling the whole blanket over him. The doorbell rang. Joel froze again. If it was their parents, they wouldn't have rung the doorbell. Maybe they were solicitors, but in his driveway? Joel nearly jumped when he heard the lock fidget, click, and unlock. The door swung open and two manly young men strode in, one carrying a box of wrapped presents.

The first of the two was shorter, his brownish black hair done up down the middle in a crest, faded at the sides. He had a short cropped beard and black frame glasses. His taller, more scraggly companion was six foot two but not even two hundred pounds, his height added to with a healthy, tall, luxurious red mohawk that contrasted the long, dark black goatee hanging down from his chin. The two intruders froze, seeing Joel, but they soon grinned wide.

"Cousin!" The shorter one boomed.

"Axel?! What are you doing here?" Joel asked. The beanpole carrying the box of presents squeezed past the other two to set the box down.

"Grand-dad said it was time to get all the boys together." he commented as he passed. Axel looked Joel over.

"From the looks of things, you've started in the tradition already." he said. Joel's jaw dropped as he looked at his cousins.

"You mean... you two?" Joel trailed off.

"Oh yeah, ages ago. Well, me anyway. Took Chaz a bit longer." Axel grinned. Joel murmured at that.

"But your ears? Your feet?" Joel asked.

"Relax, we got ways man. But first, where are we going to sleep?" Axel asked. Jace sat up from under the blanket, his donkey ears flinging out.

"I've got plenty of space in my room!" He said eagerly, looking at his cousins with an odd hunger in his eyes. The cousins chuckled to themselves, knowing the hunger well.