It was a cool Saturday morning as Kaio woke up in his crib. He was a 30 year old male otter with green over most of his body and a belly and lower muzzle of white fur. He had on a soft pink Dino onesie and a thick diaper with cute animal prints on it. There was a powerful filthy stench in the air, coming from the Otter’s heavily full diaper. He blushed and purred as he ran a hand down to the diaper, rubbing and squishing it around. His hand uncovered the rear, exposing the yellow and brown stained diaper. He giggled and moaned as he squished it all around for a while before the door opened. He stopped rubbing and looked over at the door. As the door opened, there stood the Otter’s “Mommy”, a tall heavy set, thich and bust female polar bear, also dressed in a thick padded diaper and a cute blue and purple polka dot house dress. She smiled and walked over to the otter and looked down at him in his crib. “Good morning my cute little otter. Did you sleep well,” She said, reaching down into the crib and rubbing his belly. “Yes Mommy, like a baby,” Kaio said giggling and blushing slightly. “I can see that,” She said, putting a hand on his full diaper. “Very much like a baby. I don’t think I've ever seen your pamps as full as this before. “ She smiled and gave his back side a hard squeeze, feeling all the smelly contents slosh and squash around. Kaio let out a soft moan as he felt the cold mush spread around over his cock and balls. “Let’s get you all changed and ready for the day.” Kaio nodded and blushed as he put up his arms to let the Bear lift him up out of the crib. She may have been pudgy, but she was anything but weak, she was able to lift the little otter out of the crib like he weighed as much as the infant he was dressed as. She then put him over her shoulder, hand on his back and hand under his ass, making the contents squish around again. Once he was secured she carried him over to the changing table on the other side of the room. She laid him down on his back gently before kneeling down to get the supplies. While she did, Kaio laid there, gently rubbing the cold mess over his hardening cock. He didn’t have long though before Momma Bear stood back up, all the supplies in hand. “Is my good little boy trying to be naughty,” She said, setting everything down. Fresh diaper, bottles of baby powder and baby lotion, and a pack of fresh wipes. She then reached over and gave his now bulging diaper a hard grope and rub. Kaio moaned out in pleasure and humped into her hand. She smiled and kept rubbing and squeezing him as he humped. “That’s it, little one. Go ahead. Make Stickies in your dirty pamps,” She said, stroking and squeezing faster and harder. Kaio moaned out in pleasure as he thrust harder into the air, wiggling on the table. He whined and moaned out in pleasure as he was getting so close. Momma saw this and moved her hand down to the base of his cock, gripping it tight to keep him from coming. Kaio whined louder as she looked over at him. “Does my little boy want to make stickies,” She asked, looking him in his eyes. “Y-yes momma. Yes please. I want to make stickies in my diaper,” He said, a begging tone in his voice. She then smiled and lessened her grip on his cock and started to stroke him super fast. He moaned out loudly and started to cum hard, shooting his cum up into the rest of the mess. Momma Bear then stopped and let him relax on the table as she worked on getting him out of his onesie. Kaio laid there, panting heavily as she worked, letting her move his arms and legs around. Once the onesie was off, she tossed it into the clothes hamper and looked back at him to see the overall damage. The entire diaper was now a soggy brown mess, leaking all over the place and sticking to the otter’s fur. She smiled and began working to clean him up. She carefully removed the tapes and unfolded the diaper, filling the room with the scent of the Otter’s shit. She smiled and waved her hand in front of her nose. “Whew! You’re such a little stinker,” She said giggling. She then got to work, lifting his legs and ass up, taking the diaper out from under him. She then started to clean him up, wipe after wipe, piling into the old used diaper until she could set him back down on the table. She then balled up the old diaper, tossing it into the diaper pail. Kaio looked over at the pail as she kept cleaning him up. He blushed and looked over at her. “Momma, can I go in the pail,” He asked with a blush on his face. She looked over at him with a cheeky smile on her face. She smiled and set his legs down as she went to pick up his new diaper. “Well. I know you’re my little stinker. But only dirty diapers go into the pail. Are you a dirty diaper,” She asked as she kept working. “Well no Momma. But I've always wanted to know what it’s like to be a dirty diaper. To feel what it’s like to just be a simple used object. Maybe even go to the diaper factory,” He said blushing bright red. She smiled as she powdered and lotioned him up before looking at him. “Well, if you want to go in and spend time as a diaper, you’ll have to be as dirty as one. Is that what you want? To be nothing but filth and padding,” She said with a raised eyebrow. “Yes Momma! Please! It’s my biggest fantasy! Make me a dirty diaper! Throw me away! I’ll do anything to experience that,” Kaio said, a begging tone in his voice. She smiled and looked down at him, before going back and finishing up her work. She then picked him up and helped him down to the floor before standing in front of him and looked down at him. “Tell you what. If you really want to do this. Give me a few hours. I’ll call you when I'm ready,” She said, patting him on the head and holding him close. “Now go have fun being an otter for the last time.” Kaio smiled and blushed as he ran off to play for a while. Six hours later, a loud FRRRRRT BLORT filled the halls of the house as the bear filled her diaper. She smiled and gave it a pat before making her way back to the Otter’s room. She smiled as she stood in the doorway and called out to him. Within seconds, she came waddling up to her, his diaper also filled again. She smiled and patted him on the head. “Ready to become a diaper my cute little ott,” She said, caressing his chin. He nodded eagerly and blushed as they both stepped into the room. Momma Bear then walked over to the pail and put her hand on it. She held there for a second, looking at Kaio, before tipping it over. Old used diapers spilled out of the bin, cold and smelly mush tumbling out and filling the room with its strong scent. Kaio blushed as he inhaled the smell, another bulge forming in his diaper. “Now remember what I said. If you want to be a diaper, you have to be as dirty as a diaper. Inside and out,” She said, picking up one of the older used diapers. She tossed it over to Kaio and smiled. He caught it and looked at it in confusion before looking back at her. She nodded and opened her mouth before pointing into it, then rubbing her belly. Kaio blushed bright red as he figured out what she wanted him to do. She wanted him to eat the diapers, contents and all. “A-are you sure,” He asked, blushing bright red as the bulge in his pants throbbed. She nodded and sat back to watch. Kaio blushed again and looked at the pamp in his hands. It was so cold and smelly, but this was what he wanted. He opened his maw wide and sunk his teeth into the diaper. He moaned out and shivered as his mouth was filled with cold biter piss and cold earthy shit. He wasn’t sure who’s diaper this had been, but it didn’t matter. He groaned and tore the old diaper apart, taking it in his mouth bite after bite. He groaned and gagged at the filthy taste as the shit and piss covered his muzzle. It took him a good ten minutes to power through it and burping loudly. “Very good, Ott diaper. But you’re not done yet,” She said, picking up and tossing him another. Kaio blushed and looked at it in hesitation. He wasn’t as sure as before, but the bulge in his diaper said otherwise. After a second he dug into the second diaper. He ate the second just as fast as the first, before Momma Bear tossed him another, and another. She kept this up for an hour and a half as he powered through eight diapers in total. By the end, Kaio was left groaning and heavily full, his belly bulging slightly. His once white lower jaw and belly was now stained yellowish brown with a trail of old shit and piss. He sat on the floor, letting out rancid burps and moaning as he rubbed his belly. Momma Bear then walked up and patted his head gently. “Good diaper, very good. Now that you’re full like one, we should make you look like one. Lay back,” She said softly. Kaio did as he was told as she picked up another, slightly fresher diaper. She smiled and opened it, wafting its filthy contents under his nose before putting it around his left foot. She taped it down tight before moving to his left foot. Kaio blushed as the cold mush ran over the fur and stuck to it as She continued covering his body in diapers. Bit by bit, the once green and white otter was covered in an outfit of white and brownish yellow. His feet and hands bound up in cold wet mush, making them useless. Once all but his head was covered in diapers, she took him by the wrists and taped them up with another used diaper. She then did the same with his ankles. She then stepped back and thought for a second before taking his bound ankles and taping them to his wrists, locking him in a hogtie position. She looked over him one more time and smiled as she kneeled down to talk to him. “You’re looking good diaper. But we’re not done yet. You’re missing one thing,” She said, patting his head. She then reached over and grabbed the diaper from the morning change. She looked it over and back at him before shoving the diaper into his muzzle. Kaio blushed and moaned as his poor cock was throbbing in his diaper. He was so desperate to cum, but a good diaper doesn’t get to cum, he thought to himself. He then watched as Momma Bear stood up and untapped her diaper. Kaio blushed as it fell to the floor with a heavy, wet splat. The Heavy, pungent smell of the Bears shit quickly filled the room, overpowering the smell of the reopened diapers. She then smiled and pulled Kaio over to her diaper, setting his head into her mess. Kaio blushed and moaned as the still warm shit squished around his head, some of it getting into his ears and starting to muffled the sound. He then got to watch as she grabbed the back of the diaper and folded it over his face. He moaned out and humped as the air as his entire world became diapers and bear shit. He let out a loud gag and moan as he heard her tape it tight around his neck. Once she was finished, she stood up and looked at her work, approving with a nod. “Well now Who left this filthy used diaper just laying around? Such a filthy thing. I’ll have to clean up again,” She said as she picked up and set the Pail back up. Kaio blushed as she referred to him as a filthy used diaper. Just like he wanted. It got even better as she came over and picked him up in her arms, carrying him over to the pail. She smiled and lowered him in, head first, letting his body fold up inside the pail. He moaned as this made all the diapers on him squish and slide around on his body. He would then hear the muffled click as the lid of the bin closed on top of him, leaving him in the darkness, nothing more than a used diaper now. Momma bear gave him his wish, at least the first part of it. She continued to use the bin, tossing more of her dirty diapers into it, and treating him like nothing more than what he was now, a used diaper. All he had to do now was wait for trash day. Then he would really get to be a diaper. Until then, he could enjoy the pail.