Stimulating Sitting
By Onyx Cheetah
https://subscribestar.adult/onyxcheetah


The mouse smiled around her pacifier as she lay on her tummy on the floor. Despite her toddler-like outfit and her mannerisms the mouse woman was in her 20s, though her big puffy crotch under her pastel colored skirt tried to say otherwise as it completed her toddler look. Playing with the cubby toys laying in front of her, she half-watched the cute cartoon playing on tv. Feeling a twinge in her bladder, she felt the need to pee, her muscles tensing a little. As with every time she babied up she closed her eyes, took a deep breath and let go without a worry, her warm pee flooding her diaper within moments. It hit hard against her diaper front, hissing and splashing inside before spreading around and flowing into the crevices and bloating the crinkly object.


Sitting on the couch her “babysitter” couldn't help but watch as the mouse soaked herself, letting out a soft murr. The hyena had been friends with the mouse and her daddyfur for a while, the two inviting him over for playdates, movie nights, even just dinner and it was always a fun time. It was no surprise when he got a call this morning asking if he wanted to come by. What did surprise him was once he arrived her daddyfur boyfriend told the yeen that he would be “babysitting” his mouse friend. He didn't mind one bit, she was always adorable and fun to be around- it was just the first time the two would be alone since things started to get physical between all of them. The hyena smiled as he watched the plastic garment swell up between her cute thighs, a favorite sight to see. His nose twitched as a slight smell of a freshly soaked diaper entered it. He couldn't help but feel his pants tent at the sight and smell in front of him.


The mouse rolled onto her back, a squish emitting from her nethers as she did. Her skirt rolled up slightly, teasing the hyena even more. Lifting her legs up playfully she gave her friend a nice, teasing view of her wet crotch and butt. Looking through her legs she saw him staring at her, his tented pants in her direction. She smiled knowing just how bad she could tease her friend.


“Gosh! You aren't in your diapers, Mr. Sitter! I can see your pokey tent! Diapers don't let you do that!” She gave a silly, toothy smile trying to keep up her charade as she flipped back over onto all fours before crawling up to him. A light blush appeared on his cheeks. “Better get in one soon! Whenever daddy gets pokey like that he makes a big, wet mess everywhere!” Her paw touched his crotch. It wasn't an unfamiliar touch, their playdates and dinners usually led to fun between all three of them but somehow the babysitter role-play jumped his libido into overdrive. His dick twitched in her paw, a lil bit of pre soaking into his pants. “See! It's already happening! We gotta get you into the closest diaper so you don't make a huge mess!” She playfully looked around, playing up her role for her sitter.


Chuckling at the mouse's act of innocence over his hard dick he leaned forward, smiling and rubbed her cheek. A slightly perverted but fun idea popped into his head as he pet her. “I have an idea, lil mousie! You just peed so you shouldn't need to go again any time soon! How about we get that on me before I make a huge mess all over and then we'll get you into a nice clean diaper before you need to go again!” 


Her rubbing became more and more insistent as the idea made her tingly deep down. The yeen chucked, rubbing her head like he would a pet. Kneeling down onto the floor in front of her he rested a paw on her side to hold her in place, placing the other paw on her diaper tape as he gently ripped open one side, slowly. The sound caused the mouse's ear to flitter. Her diaper drooped down sideways. The pure unfiltered scent of fresh urine and her attraction filled his nose. He twitched in his pants, another fresh droplet of precum staining his front. His paw slid over her tummy and across the front of the diaper towards the second tape. He pulled on it, letting the diaper drop down to the ground with a loud plop. 


In front of him stood the mouse’s glistening pink pussy, her short crotch fur (to make for easier diaper changes) enhanced the look. He breathed in deep, letting her arousal fill his senses. His sexually-charged brain wanted to bury his snout into her but he held himself back- he was enjoying the little role-play they had going on too much to end it this fast. Smiling, he picked up the soaked diaper and laid it out. Grabbing hold of his pants he dropped them, letting his hard dick flop out in front of her. 


The mouse’s paw found its way to her wet crotch as she watched the hyena sit down onto her wet diaper. She began rubbing over her slit as he got himself in the perfect position, her fresh urine squishing and squelching around his butt and thighs. As the wet front was pulled up over his throbbing dick her finger slid inside herself. She bit her lip to hold back a moan. She couldn't help but feel enraptured watching her friend put on her used diaper, breaking her role-play for just the moment as she watched the perverted but sexy act with full attention. As the hyena taped it closed around him she felt a warmth engulf her, her knees turning to jelly as her pussy quivered around her finger. Her breathing sat heavy for a moment before she regained control of herself, finally looking back at her friend. He was sniffing at the air; he could smell her. He knew what she did because of him. She blushed slightly but knew from the twitching in the diaper that he was getting there too.


She smiled and winked at him before switching back into her character for the evening’s role-play. The mouse's body language instantly changed, whining and tugging at her skirt. She pulled it down over her naked crotch and held it to her. “I… I feel weird and tingly down below, like I needa pee again! But, but… you're wearing my diaper now!” She whimpered and whined as she did a cute little potty dance, occasionally rubbing her skirt into her crotch to feel a bit more pleasure while trying to remain in character.  


“Okay! Okay! Quickly let's get to the changing table then, don't need to explain your puddles to your daddy!” 


The mouse girl chittered happily, grabbing hold of his paw. She pulled him forward towards the nursery. The yeen had been there plenty of times from past changes, both the mouse’s and his, but he played along, following her.


The two entered the infant-esque room. Pastel colors and cute little shapes and designs littered the walls. He was always impressed at just how deep into the lifestyle his mouse friend got. A little jealous too, admittedly, though happy that his two friends included him in play often, letting him experience it occasionally too.


The mouse let go of his paw, quickly running to the table as if it were a true emergency. She playfully struggled to get up onto it, showing off her still damp bottom and wiggling it for the hyena, making sure to lift her tail to give an unobstructed view of her glistening slit and tailhole. She slowly pulled herself on and flopped down onto the table, spreading her legs out in his direction, her slit fully on display.


The yeen bit his lip a little as he watched. He knew beads of pre were soaking into the wet diaper trapped around him. She was always such a tease. She probably expected him to mount her right then and there as she waited but he had an even better idea. Even as his dick begged for freedom from the thick garment he now wore he went over to her shelf and searched through her diapers. He could feel her staring at him and knew she needed him now, her smell thick in the air, but he took his time looking through all the adorably designed plastic underwear she owned- half for the playful tease and half because he knew the second she was taped into the sexy undies he wouldn't be able to resist any longer. He pulled out a thick pink diaper and waddled his way over, his extremely needy hard-on making it hard to walk easily anymore. 


Her paw was unable to stop itself. Her fingers spread her pussy lips, giving her access to finger-fuck her soaked cunt. She couldn't stop moaning as her other paw slid over her shirt, squeezing at her nipple. 


He watched her intently, diaper front twitching in response. As he got close he opened the diaper up, fluffing it by rolling it around in his paws, his eyes never leaving the mouse’s body in front of him as he did so. Grabbing hold of her feet he lifted her bottom to place the diaper under her. 


His lift squeezed her crotch, tightening the hole that surrounded her fingers. She gasped, feeling herself grow soaked with pleasure. As he positioned her she couldn't help but push her finger in and out, the vice grip she was forced to have causing tingles as she was forced to rub against her clit. A moan escaped her lips just as he put her bottom back down into place, this time on top of the pillow-like cushion he'd positioned under her.


He stared at the half nude mouse. The diaper laid out under her just added so much, his dick throbbing and leaking from the sight. It also didn't hurt seeing how hard she was violating herself from the treatment he was giving her. He had to finish taping her up though and her paw wasn't going to do him any favors. He gently pulled her out of her own hole, a whimper escaping her lips. Her pussy lips quivered, awaiting more. He wanted to give her that so badly. He held her arm as he stared. Her scent wafted into his nostrils again, this time from her fingers. Unable to deny himself everything but trying to hold back to tease her a little more, he lifted her paw up to his maw and wrapped his muzzle around her digits, tasting her fresh juices. He closed his eyes and moaned. His body leaned forward slowly as he sucked, moving itself into position. A churr and huff escaped the mouse's mouth. Opening his eyes he realized his diaper front was pressing against her crotch, his needy and throbbing dick perfectly aligned with that hole.


Pulling the fingers out of his mouth he stood back up straight. He chuckled to himself. What kind of sitter would he be if he didn't finish her diaper change? Her paw tried to slide back to her pussy- clearly she was getting close and needed more but he couldn't let her cum without her diaper on. Pulling it away again, he grabbed at the diaper front and slid it up into place over her inviting hole. Finally without seeing or directly smelling the sexy mouse pussy, his mind cleared just enough to let him finish taping up his friend nice and snug- at least at the top of her diaper. He made sure her leg guards were just slightly loose. He wasn't going to be able to hold back much longer. He stared down at the horny mouse who playfully tried to get her paw back to her crotch, finding the diaper waistband snugly in the way. He chuckled at her squirming knowing she really needed it too but instead of filling her there and then he grabbed her paw bringing her back into the living room, to lay her back in front of the tv. 


The mouse couldn't take it any more. She needed him inside her and needed it now. Fire burned with desire inside her crotch. She pushed him down onto the couch, giving him a bit of a shock as she climbed on top of him. Their diapers instantly began to crinkle and squish together, her crotch pressing against his bulge. She groaned. She really needed it. He did too, she could tell by his bulge threatening to break through her old diaper. She pulled on the wet diaper's tapes, the front of it instantly shooting forward as the hard hyena cock inside was finally freed from the infantile prison. It was extra thick, throbbing and full of cum waiting to be emptied inside her. She looked down at the hyena and begged. “Please Mr. Babysitter, I need it! I won't tell daddy!”


The yeen chuckled, putting his paw to the top of her diaper and acting as if he was about to pull it down. Instead he trailed it down the sides, teasing her front before reaching for the leg guards. “I'd be a bad sitter if I didn't help!” His finger slipped inside the loose leg guard and he pulled, letting the diaper deform to create room. He once again saw her soaked pussy. No more teasing, he had to fill her, his arousal had grown too intense. His body went on autopilot, letting him watch the show as he lined himself up, slipping his dick into the side of her diaper and up to her pussy. He sat there for a moment, admiring just how sexy that look was, his dick just sitting inside her diaper. 


Breathlessly, the mouse broke their role-play for a moment as she looked down at him, begging lustfully. “I need it in me, I need you in me. So much! P-please put it in!” 


The yeen lifted the mouse up, her small and thin mouse frame making it easy for the male. His dick half-slid out of her diaper as they repositioned. He turned, laying her down in his old spot as he stared down at her, lust deep in his eyes. His dick instantly slid back into place; back into her diaper, ready to enter.


Her paws groped her diaper front, feeling the girth sitting there ready and waiting to push inside. The hyena let out a soft moan as the mouse touched him through the diaper, his member twitching against her slit. Gently, he rubbed the object of her desires against her soaked pussy lips, sliding it slowly back and forward using her juices to help lube up his shaft. Her paw pressed down gently against him, letting his slow movement position him just right to push in. It was all she could do but bite her lip as he slid against her clit, gliding past it with a slight friction to her needy hole. A whine escaped her lips. She forgot just how big he was, bigger than her daddy, as he spread her tight hole open wider and wider letting himself in. She made a fist at her muzzle, biting it as he pressed into her depths slowly.


“Such a good girl for me.” He grunted, his dick twitching inside her as he continued to sink in. “A-almost there!” Bending over and making her legs lift more as he did, he grabbed hold of her waist and used the new leverage to push himself further in. Breathlessly, he let out a soft “Good girl!” as his crotch finally touched her diaper, the plastic object crinkling with every thrust inside. It was as if it was meant to be. His dick twitched. He felt her nethers quiver around him as she heard the sounds as well.


The two sat unmoving for a few moments, the hyena letting the mouse get used to him being inside her and enjoying the closeness together. The yeen’s paw began to caress over her body, exploring every curve. His other paw found its way to her butt, groping her diaper and making her squeeze him as a groan escaped her lips. Smiling, his hips pressed forward, thrusting the final bit of girth inside her all at once. 


She felt electricity all around her as he unexpectedly pushed into her. She arched her back letting out a whimper and moan as he stretched her limits. She could swear he had grown just a tiny bit more- he was so deep inside her. “S-so much… so big…” Her eyes glistened as she looked up at him.


“Shhh, you can do it! Keep being a good girl for me!” He looked down at her, running a paw down her cheek. “You just make your ‘sitter’ so hard. I'm sure daddy can't keep his paws off you!”


She squeezed at his dick inside her, the role-play continuing to drive up her arousal. It was a good thing her diaper was still on, otherwise her sheets would be soaked. She loved being treated like this, like he couldn't help but fuck her. She pressed her crotch up against his, gyrating and humping into his length. 


As her diaper crinkle-squished against him again, the hyena felt it- he felt the first twinge in his balls. He couldn't believe just how riled up his friend made him. A short, hard breath left his nose and he gripped her hips. There was no stopping it, he needed to rut his diapered friend; he had to breed her hard, give her his pups. He pulled back, leaving just his tip in, throbbing inside her. He watched her breathing and knew with each short breath she expected him to push in. Instead he rubbed at her diaper front, rubbing it against her sensitive bits and crinkling the diaper hard. She squirmed at his touch, her muzzle hanging open. He slammed himself in, the mouse unable to hold back a shriek of ecstasy and shock. He chuckled in response and pulled back again. This time though, he didn't stop, immediately pushing back into her hole.


Her paws grabbed at whatever she could grip. She squirmed and squealed with each thrust into her, his hyena dick gliding along her clit. The diaper was a symphony of sound as the two humped together. His paws held her in place as he used her and she loved every second of it. Under his breath she kept hearing him mumble out “good girl” and she really felt like she was a good girl. She felt it building- a warmth in her tummy spread down to her crotch. She couldn't control herself. Her pussy began to contract around the yeen's length, followed by a squish and hiss noise as she began squirting around her friend. Her diaper soaked up most of her juices; his dick making squishing and squelching noises as he continued to pound into her through her orgasm. Her body began to twitch as her pleasure reached every inch of her. The only thing the mouse could do was hold on tightly, wrapping her arms and legs around him as she came. 


The hyena felt his own orgasm grow, watching as the mouse went through the throes of passion. He grunted and growled, his teeth baring as he felt closer and closer. Sliding down to her neck, he pushed his muzzle against her and breathed in her scent. He moaned and opened his muzzle, biting down on the side of her neck as he thrusted one last time into her, his body jerking as his dick exploded inside her. Rope after rope of cum escaped his body, shooting deep into her.


As his orgasm subsided, his muzzle released her neck and he stared down at her smiling. Slowly her body relaxed and released, her arms and legs dropping. He pulled back, letting his shrinking dick pull out from her used hole. Cum poured out from her into the diaper. He watched, still incredibly turned on, pulling the diaper up to tighten it around her. A soft hissing sound instantly followed, the mouse peeing into it as soon as it was back in place. She blushed but chittered happily, feeling relieved in multiple ways.


Following suit, the hyena grabbed his pre-wet diaper and slid it back into place, sighing as soon as it was and letting out his own piss that he'd been holding back. He chuckled. “Well, we'll definitely need a change again, soon enough.”


Nodding, the mouse pulled him in tightly and gave him a hug to thank him before dropping back to the ground- back to watching cartoons. He followed and sat on the floor with her, pulling her into his arms. The mouse snuggled up to him, nuzzling under his chin. He felt exhaustion coming as they relaxed together, his mind thinking only one thing as he fell into a nap while holding her: he'd definitely have to “babysit” her more often.




Originally released on SubscribeStar as “The Diaper Change” at https://subscribestar.adult/onyxcheetah on 04/30/24