It was a nice fall day out. Not too hot, not too cold. The sun just peaking out over the clouds to add that little extra warmth. It was nice enough that the windows to the house of two brothers were left open to left the cool air waft through the living space. Ultratails was a two tailed fox with orange, white, and black fur, and his older brother Thackery was a jackalope with grey and white fur, and one blue and one red eye. The two were twins, although not identical twins. Thackery was born just a few hours before Tails was.

Ultratails was downstairs on the couch gaming, playing Astral Chain for the Nintendo Switch, the two tailed fox sitting there in just a t-shirt and his soggy diaper he'd been wearing most of the day. He was finally finishing up a chapter in the game and let out a happy sigh as the end screen for the chapter came up. He waited for the next cutscene to finish so he could go save and turn off the console. He'd been playing for hours, and it was approaching dinner time. He let out a long yawn and stretched before standing up, feeling his diaper sag a little from how wet it was. It had been a number of hours since his last change, and he'd been drinking a lot of soda. Eventually he stood and stretched out though and decided to go find his older brother.

Upstairs Thackery had been replacing all the light switches in their shared bedroom and bathroom with new smart switches for home automation. He himself was in just a t-shirt and diaper as well. The jackalope fiddling with a few wires as he was finishing up the last switch in their bathroom. enough light coming in the bathroom window that he was easily able to work. Eventually he heard the door open, looking over to see the his younger brother standing in the door frame.

"Oh. Hey Tails. How did the game go?" Thackery asked, smiling to him. Tails walked in and moved up behind his brother, hugging him tightly, leaning his head on his shoulder, giving him a kiss on the cheek.

"It went well enough. How about you?" the vulpine asked, nuzzling into his brothers neck, giving a gentle sniff of the fur, loving how his brother smelled. He held him closely. The front of his soggy padding pressing to his brothers diaper butt under the shirt. For now just holding to him.

"Just about done here. After I get this screwed in we can go eat. It's your turn to make dinner tonight." said the older brother. Tails nodded and kissed his neck, making the jackalope shiver some.

"I guess it is..." he said in return, wiggling a paw under the shirt a bit, rubbing along his older brothers tummy some. The two were very close. More so than brothers normally would be. Him and his brother had been inseparable ever since they were cubs. The two had been fooling with each other since a very young age and never stopped. While they never officially dated each other, or anyone else for that matter, it was commonly accepted among their friends, and even without saying it, to themselves, that they were a couple. Though they did retain an open relationship, their feelings for each other were a lot stronger. The two of them eventually having moved in together in their adulthood into an apartment and eventually buying a house together. Aside from their already unusual relationship, the two also shared another little quirk. Their love for diapers. Neither of them ever stopped wearing. They would sneak out and buy some in secret as kids after they grew older. They had been caught a few times by their parents, but it never stopped them. Once they moved out together, it was a lot easier. The two of them almost never wore anything indoors except their diapers, if that once they moved out. 

"Ahhh... C.. Come on... Let me finish this first..." the jackalope whined a little, feeling his younger brother kissing over his neck and rubbing his tummy. Everything was hooked up, so he slipped everything back into the electrical box and quickly screwed it back in place while his younger brother kept touching him.

"There you go. Nice and finished." the fox giggled some as his brother finished up the last switch. His one paw kept rubbing that tummy while he continued kissing his brothers neck. His other paw moved around and started to rub over the front of the soggy diaper the jackalope wore, making the older brother blush. He hadn't realized he had wet, too caught up in his work. Thackery let out a moan when that paw on his diaper squeezed over his sheath through the soggy padding, whimpering a bit when he also felt his brother grinding his own soggy diaper to his rear, finding himself pushing back between the paw and his brothers crotch.

"Nnnffff... T... Tails..." whined the jackalope as the fox ground his bulging diaper to his rear, filling the room with the dull sound of crinkling and squishing. Tails kept grinding and thrusting as his own padding bulged more, feeling his older brothers own diaper bulge more too as he rubbed over the soggy front. Slowly his paw moved up and slipped into the hem of the padding and down into the front, groping over that thickened sheath, making the jackalope moan and whimper more.

"I love you big bro." Tails said with a pant, Thackery looking back and smiling.

"I love you too little bro." the jackalope said with a smile. Blushing when his brother leaned in and kissed him deeply from behind, the two moaning as their tongues wrestled. Tails took the opportunity with his free paw to make a little hole in the front of his own diaper, fishing his hard length out, grinding it lightly along the soft, slightly damp plastic of his brothers diaper seat. Eventually he slowly pushed up until he found the tail flap where his brothers tail stuck out of. Slowly he slid into the flap until his tip found his brothers warm little hole, smearing his pre along the ring.

The two kept up their kissing and grinding on each other until finally Tails pulled his paw from that diaper front and held to his brothers crinkly hips, breaking the kiss as slowly he started to pull his brother back while he pushed forward. The two moaned as slowly that tip started to prod into that pre slickened tail ring, stretching and nudging it open as slowly but surely that ring wrapped around his tip. Both boys moaned as they took pleasure in each others forbidden warmth. Slowly the fox started to push more and more dick inside his brother, eventually hilting with a crinkle squish as their diapers pressed together, all seven inches of fox cock lodged deep inside, the two brothers intimately connected in a forbidden manner the two had enjoyed for decades. 

"A... Always so tight big bro.... Lucky I don't cum just sliding in..." Tails teased with a moan as he felt his brother squeeze around him in response to the statement, earning the jackalope a splash of pre deep inside of him.

"U... Unlike you, I'm not getting plowed every chance I can~!" the older sibling teased back. The fox growled a little and leaned in, nipping one of his brothers long, black ears, growling into it and giving it a tug.

"You just wish I fucked you more often! Lets fix that right now!" the fox growled in the ear, suddenly pulling back and thrust forward hard, eliciting a moan from the jackalope, soon feeling his younger brother slip out and thrust again and again. Soon squish crinkling was filling the air as every thrust slapped those soggy diapers together. The two of them moaned as the younger fox thrust into his older brother. Every thrust into his brother reminded the fox just how good it felt to fuck his sibling. He normally bottomed, not that he minded at all, he loved taking his brothers dick, but it did mean he didn't fuck his brother too often.

"Nnnfff... F... Fuck..... Tails...." whined Thackery as his younger brother kept thrusting deep and hard. He felt every time those hips smacked to his rear and that cock hilted. He felt how that growing bulb was popping in and out while still small. He also felt how his own cock had fully hardened into his soggy diaper front and was leaking pre along the sodden wall of his padding. He reached down to try and touch himself, only to find his hand tugged away just shy of his diaper front and pinned to the wall.

"Uh uh... no touching... We'll take care of that later..." the fox teased, making his sibling whimper as his cock twitched inside his diaper front. The two kept going at it, thrusting and moaning. Eventually that knot getting too big to pop in and out with ease, the fox deciding not to knot for now, otherwise it would make it hard for them to get dinner anytime soon. Eventually though Tails pulled out and turned his brother around, picking him up and pinning his back to the wall, next to the newly installed switch, reaching down to re-adjust his dick until it slipped back into the tail flap and into his brothers tight little hole, holding him against the wall and holding him up as he thrusts up into him, looking into his brothers eyes, looking at his one blue and red eye.

"Mmmffff.... Such a pretty brother I have..." Tails commented, making the jackalope blush and whine as he held his brother for support.

"N.... Nooooooooo. Am not...." the older sibling whined out, shivering as he felt his brothers knot bouncing off his hole time and time again, feeling how his own dick rubbed into the soggy padding, getting him so close as his younger brother kept hitting his prostate, but never quite sending him over.

"Shhhh.... Your perfect. I love you the way you are my pretty big brother." Tails said, leaning in and kissing him deeply, tilting his head to lock muzzled with him to shut him up before he could comment back, making Thackery whine that much more as his tongue battled with his brothers. Soon it was too much though, the foxes cock throbbing as he whined, holding the kiss with his brother as he thrust up once more and moaned, his cock twitching as he started painting the insides of his brothers tailhole with thick shots of warm cream, covering every inch it touched white.

Thackery whined as his brother came deep inside of him, feeling his brothers love filling him so deep inside, feeling that cock throb and twitching inside him, and that knot kissing his ring. He had to resist the urge to take that bulb, knowing full well that it would make dinner near impossible, no matter how much he wanted it. Eventually though the kiss broke and slowly the orgasm faded. Slowly tails slid his cock free of his brothers tail flap, letting him back down onto his legs, hugging him close and smiling.

"Come on. Lets grab a shower, and maybe if your good, tonight we can take care of this~!" Tails said with a grin, reaching down to give his brothers rather obvious diaper bulge a grope, making the jackalope moan and huff.

"You know thats your fault right?" the older brother said, Tails snickering and nodding as slowly the two did a sort of dance they had obviously done many times before, both of them undoing each others diapers, letting them hit the ground with a squish, then removing their shirts and tossing them into the hamper. Thackery leaned down to collect the sodden plastic from the floor, only to let out a moan as he found his brothers muzzle had been buried under his little cotton tail, groaning as the fox made out with his rear, whimpering some when the foxes tongue slid inside his cummy little hole and slurped. This only lasted for about ten seconds or so before Tails stood up and moved to turn on the shower, getting the water warm, leaving Thackery to huff.

"Your the worst. You know that right?" the Jackalope whined out. Tails looked back and stuck out his tongue as his older brother disposed of their diapers in the bathroom pail.

"Oh please~! You love it! Besides. You belong to me, so I get to do what I want~!" the fox teased, only for the older brother to let out a big of a growl.

"Oh? I do?!" he said, walking towards the fox and pushing him into the shower, grabbing him by the shoulders and pushing him on his knees with force, quickly aiming his dick with a paw while the other held his younger brothers head in place. With a sigh he started to relieve himself, pissing right onto the foxes face, making the vulpine squeak and close his eyes, without even a thought, opening his maw up, feeling his brothers piss pooling in his maw, making the jackalope grin.

"See? You submit so easily! I am pretty sure if anyone owns anyone here, I own you. Maybe this will remind you..." the older sibling growled as he marked his property with a golden stream from his half hard dick, painting his brothers face and body with his musky urine. He aimed it down at his brothers dick for a while, covering it in the golden fluid, watching it bounce and throb before aiming back up and shoved his dick into the foxes maw, moaning and making him bob on his cock. Tails was more than happy to comply though, wrapping his lips around his brothers pink shaft, ears folded in submission as he suckled and drank, already giving up his dominant role to his older sibling. This continued for about a minute before the stream faded, Thackery continuing to fuck his brothers mouth before the fox forcibly slid off.

"F... Fine. You own me.... But still not letting you cum till later. We need to eat first. Maybe before bed." the younger fox said. Thackery groaned and whined with need, but he agreed. Soon the fox stood and the two continued their shower together, helping soap each other up, though Thackery didn't wash the foxes nethers much, wanting to leave his scent there to remind his brother and others who owned the vulpine. Eventually they stepped out and dried off and diapered each other up. The two then headed back downstairs, Thackery going to flip the breakers to turn the power back on in their bedroom and bathroom before flopping on the couch and turning on the TV to game a bit this time while Tails prepared dinner.

After about thirty minutes or so, the fox set up the plates and set them down at the table, two plates of pasta with meat sauce and some garlic bread, placing them in there spots across from each other before getting them each some juice in a bottle and setting them down too. Tails then walked over to the back of the couch and tilted his brothers head back and leaned in, kissing him deeply for a good while before breaking the kiss and smiling. 

"Dinners ready bro. Come get it while it's hot~!" the younger sibling said with a smile before going to sit at the table with a crinkle, waiting for his brother to sit before the two started to eat, the two chit chatting through dinner some, drinking their respective bottles. Eventually dinner was done though, the two getting up and cleaning off their plates and putting them in the dish washer, the two heading back to the TV to watch a little before bed. The two brothers cuddling on the couch as they put on some Adult Swim, watching a few shows, neither noticing as they wet themselves again over the last two hours or so before it was time for bed.

Every so often throughout the two would kiss and rub each others tummies, and eventually paws end up on diapers, both feeling each other were soggy, giving gentle rubs and squeezes, eliciting soft moans from each other. Eventually though as it got late enough they decided it was time to get ready for bed. They turned off the TV and stood up, holding each others hands and heading to the bedroom. As they walked in, Tails pushed his brother back onto the bed with a giggle, smiling to him and jumping onto of him, giving him a little kiss.

"Seems someone needs a change~!" he says, reaching down to fondle his older brothers soggy, and bulgy front. The idle teasing the two had done while watching TV having left him quite stiff again since he wasn't allowed to cum earlier. Thackery let out a little whimper and nodded some.

"I.... I guess we should change before bed..." the older brother huffed out as the fox groped him more. Eventually those paws moved to the edges of the padding, undoing the tapes, then under, the jackalope lifting his rump enough to undo the tail flap. Tails stood back up and slowly pulled down the diaper front, revealing his brothers own seven and a half inches of knotted, hard cock, dripping with pre. The fox grinned as he leaned down to kiss his brother briefly before kissing down his chest and tummy and down over that hard length. 

"Well.... This might be in the way of a change.... Guess it can't be helped. Don't worry. Your 'big brother' will get you all clean~!" the fox teased. Since they both wore diapers, and sometimes he had to change his older brother, he would tease him that he was the younger brother.

"S... Shut up you little... ahhhhh...." was all the jackalope got out before moaning as his younger siblings maw slid down his piss soaked cock, starting to bob over him and lick up the pre. He whined as he reached a paw down to rub the back of the foxes head, helping him to bob. Every so often he forced him down hard, making his sibling deep throat his cock, feeling that tight throat around him. The fox didn't even gag anymore after years of practice. Soon Tails brought a paw up to fondle his brothers balls, making the older sibling whine and throb more, spurting more pre along his brothers tongue. The older brother let this continue for another minute or so before gripping the back of the foxies head and tugging him off with a small growl.

"E... Enough of that.... I want something else now" the jackalope growled out, quickly sitting up and tossing his brother onto the bed, making the fox yelp. Thackery made quick work of his brothers diaper, un-taping it and tugging it off. But then he quickly gripped his own soggy padding, taken off only moments before and quickly slipping it under his brother, pulling that soggy front up and pushing it in place, taping the sides on. Thackery pressed that soggy padding to the hard length in his little brothers padding and grinned.

"That should help remind you who owns who~!" Thackery teased, making the fox whine and nod. The jackalope took little time in quickly turning his brother over onto his tummy and lifting that crinkle butt in the air, tugging those twin tails hard, making his younger brother moan. He knew those tails were very sensitive and pleasureful, and knew how his brother loved to have them tugged and played with. Quickly he scooted forward and wormed his own cock tip into the flap of his brothers diaper, slowly pushing in until he found the foxes entrance. He didn't want to wait though and started to push in, watching his cock slowly vanish into the tail flap of that diaper as his brother let out a small yelp. While it hurt a bit, the vulpine was kind of used to it by now.

Slowly Thackery pushed into his foxy brother, sliding his dick in deeper and deeper until his balls and hips patted that crinkle butt, moaning at the tightness wrapped around his cock. No matter how much he fucked his brother, he was always so tight. Not that he was complaining. Hell. He loved how tight his brother always felt around him. The way he milked his dick for more and more pre every time he'd thrust. With that thought he slowly started to slide out, watching his dick re-appear, only to vanish back inside that crinkle butt as he started to work up a pace of fucking the fox below, using those tail bases as leverage. Both of them moaned as that length was slowly worked in and out of his tight hole on the bed they shared every night.

"Ahhhh.... B.... Brother.... F... Feels so good..." the foxy whined out. His toes curled as his older brother fucked him deep. He felt that growing knot pop in and out while it was still small. He whined as he ground back as best he could onto his brothers dick, squeezing it inside every time he hilted. Tails could feel as his brother splashed his insides with heavy amounts of pre from being so worked up, and how that knot would grow more and more with every thrust. He whimpered more as he heard every crinkle their fucking made.

"Rrrrr...... that's a good baby brother..... take it niiiice and deep~!" the jackalope growled before quickly flipping the fox and pulling his legs up as he laid him on his back, never leaving his hole, leaning over him and kissing his younger sibling deep as he continued to breed him. Tails whined and wrapped his arms around the older male he was happy to have as a brother, a paw rubbing the back of his head as he kissed with him deeply, licking at his tongue and suckling at his brothers. Thackery kept thrust deep and hard, his knot getting too big to pop in and out with ease anymore, shivering as he ground it to the hole hard every so often, stretching it out a bit more each time. Eventually that kiss broke and they looked into each other eyes, panting over each others muzzles.

"Ahhh... B... Big bro.... P.... Please knot me!" Tails practically yelled out with need.

"With pleasure little brother." the jackalope growled, once more flipping him onto his tummy and lifting that rump again so he could thrust harder. One paw tugged those tails back, and another rested on his hip, pulling him close as the fox also pressed back and tried to keep loose. After another few minutes of rough fucking, Tails let out a yelp as his brothers large bulb popped in, squeezing hard around the large bulb that was now embedded deep inside. The knotting and squeezing setting off the jackalope as he laid over his brother and took his brothers neck into a mating bite as he moaned, his cock and knot throbbing as he started to cum hard inside the fox below, plastering his walls insides much like his younger brother had done to him earlier. The two of them shivered as the jackalope rode out his orgasm, filling the fox with hot seed, spreading it around deep inside. After a while though the jackalope's orgasm faded and he just laid on his brother, letting go of his neck and licking where he bit. His paws moving around to hold his sibling and move them to lay on their sides, eliciting a small groan from both as that dick inside the fox moved around some as a result.

"Mmmmmm. I love you big bro..." Tails said with a smile, reaching to grab one of his brothers paw and bringing it up to his mouth, kissing the back of his hand gently, nuzzling back against his slightly older sibling. Thackery smiled as well, rubbing over the foxes tummy with his free paw. The two snuggled closely and as intimately as possible.

"I love you too little brother. Forever and ever." Thackery said with a smile before letting out a yawn, causing the fox to yawn too. Tails wiggled back into his brothers grip, using his twin tails to hug around the jackalope. 

"Good night big bro." The fox said with a yawn, reaching to grab the blanket and pull it over them. Thackery grinding in nice and deep, locked inside his brother for the night.

"Good night little bro." the older brother said, giving his sibling a kiss on the cheek before both soon fell asleep, held nice and close to each other. The two slept peacefully. So much so neither noticed as the jackalope started to pee in his sleep, filling his little brothers tailhole with warm pee, some of it spilling back out and into the padding. Luckily he stayed inside so he didn't end up wetting the bed. Eventually though morning came, and as the light started to shine in the room, Tails opened his eyes. He scooted away a little, shivering as his brother slid free from his hole. He blushed as he felt his hole leaking some, a not so unfamiliar feeling, realizing his brother had peed in him during the night. He wasn't complaining though. It was just another bit of his brother he got to keep with him as he slowly scooted his way out of bed, careful not to wake his older sibling. As he stood he felt his diaper sag, blushing a bit as he realized he'd wet it too during the night, and as is, it was already wet from when his brother put it on him. But he kept it on. After all. It was his older brothers job to change him, and he enjoyed his changing time with brother.

After stretching a bit more, the fox got to work. He walked over to some drawers opened one, reaching into the back and pulling something out before heading to the kitchen and placing the object aside. He started to cook, making some bacon, eggs, and pancakes. He plated the food and put it on a little tray with legs, placing the object he'd brought out earlier atop the stack of pancakes, filling a bottle with juice, and then placing a tray cover over the food and walking to the bedroom. He put the food aside for now and looked at his brother in bed, admiring the view of his cute sleeping brothers face. He almost hated to wake him up, but he didn't want to let the food get cold on this special day he had planned for so long.

"Come on sleepy head. Wake up." Tails said, nudging his brothers shoulder. The jackalope whined as he squirmed in bed. He was still mostly asleep, only the smell of food waking him partially.

"I dun wanna. Five more minutes..." the older brother grumbled before pulling the covers over himself. Tails snickered and reached over, tugging the blanket off his brothers face and cleaning over, kissing his brother on the lips, kissing him deeply for a few moments before pulling back.

"Come on. I made you breakfast. Get up or it will get cold." Tails said with a smile. Thackery's ears perked at this as he let out another little whine. He reached his paws up to try and rub the sleep out of his eyes.

"I guess I can't so no to that..... Whats the occasion?" the jackalope inquired, slowly sitting up as the tray was placed over his lap. He looked at his covered meal and the bottle, grabbing the bottle for a quick drink to help lubricate his dry throat.

"It's our birthdays silly. Happy birthday big bro." Tails said with a smile, taking the lid off the food and setting it aside, standing next to the bed his brother was in.

"Oh shit... That was today? I completely forgot! I didn't get you anything..." the jackalope whined. Tails giggled a bit and leaned in, kissing his brother on the lips again.

"Don't worry about it. Your all I need as a present. For now, eat." the fox said. His heart racing a bit as his brother looked down at the food. The fox had shaped the food to look like a rattle, the pancakes the rattle itself, the bacon the handle, and the eggs in the shape of a little heart. It was at this point though the jackalope noticed something slightly shimmering atop the pancakes. A small obsidian ring with tungsten a tungsten band. The fox took the ring once he saw his brother had seen it and knelt next to the bed. 

"I know it's not a traditional ring. But nothing about our relationship is traditional. So here it goes. I love you big bro. I always have. Ever since we were kids. No one on earth makes me happier than you. All I want for my birthday is one thing. And thats to be yours. Big brother? Will you marry me....?"