It was a nice summer day in the neighborhood and all the folks seemed to be having a ball while either playing outside or just simply relaxing in the nice air conditioning. That is everyone except for a young fox kit named Brian. He sat alone in his room idly flipping through TV stations trying to find something to watch or distract him from his thoughts. He sighed “Man what a drag...” He said to himself and leaned back on his bed. It wasn't that he was bored per say as he had many things he could do but rather it was what was going on currently. “Sis will be home from camp soon and that will mean my fun will end...” He spoke to himself again. He began to think back to when it all started. She was going to be gone a whole week which meant peace and quiet and that he would have the whole upstairs of the house to himself. No waiting for the bathroom in the mornings due to her taking forever, he could play his TV and video games at his preferred volume and to boot, he could run around in his underwear which he liked to do since it was hot indoors despite having AC.

It was an absolute blast as he stayed up practicing his Smash Brothers strategy with his door opened. Not having to worry about waking her up from her beauty sleep he played to his hearts content with cheering and laughter. Later one night while watching a marathon of Animaniacs, he decided to go ahead and get himself some soda from the fridge downstairs. Wearing only his briefs which were decorated in blue turtle shells from Mario Kart, he made the trek downstairs. He knew his parents were fast asleep so there was no need to hide himself as he made his way to the kitchen and grabbed a cold fizzy drink. “This is great...absolutely the best.” He said as he was walking back up the stairs. “Turn your TV down....stop making so much noise...” He playfully mocked his sister. “Oh and you had better stay out of my room Brian.” He laughed as he walked passed his sisters door. Just as he was about to enter his own room though, his last remark made him stop in his tracks. “Stay out of your room huh?” He grinned slyly. Granted he really had no ambition to ever go in her room anyway but, as he thought about it, she was always so adamant that he stay out of there no matter what. “Hmm” He turned to face her door. 'Well what kind of little brother would I be if I didn't go snooping around? Besides she isn't here and she wont even know I was in there.' He thought and smiled and opened her door.

Inside was pretty much what he expected  the room to be decorated in. Light purple colored walls with pictures of her favorite bands and memories with her friends. Her bed clad with a pink comforter and matching pillows with a big stuffed bear resting on it and a variety of other things that suited her. He couldn't help but notice that a familiar scent of freshener was in the air but figured it was just normal. “Wow...very anticlimactic.” He lightly chuckled. 'I understand privacy but it looks like a normal room to me.” He pondered. “Unless its a ruse and she is hiding something....like her diary.' He grinned and began his snooping. He first started with the closet, though only coming up with multiple pairs of shoes and her wardrobe. Leaving that he went to her dresser which also had her TV on top of it. “Well she at least has good tastes since this is the exact same model as my set.” He commented and pulled open the drawer. Inside was just pajamas, socks and other accessories. “Meh” He huffed and before popping open the second drawer he realized something which made his heart speed up. 'If the top was pajamas then this one will be....' He swallowed nervously and opened the drawer. Just as he suspected “her panties!” He yelped quietly as he felt that he just discovered pirate treasure. He wasn't sure why but lately since the past couple of months he couldn't help but be fascinated with girls underwear. He had been looking up images on his computer at night of various panties and girls just wearing them. After countless hours of researching, he found out that he liked panties with fun designs on them ranging from just simple flowers to fun cartoon or video game printed ones.

At this point he looked around to make super sure that no one was watching. 'Cant be too careful now...Jessica would bury me alive if she found out what I was doing.' He thought and carefully started looking through her underwear. They all felt so soft and delicate, each one had their own special aura as he admired them. They all ranged from cute and frilly with a variety of bright colors, though sadly very  few were the type he really enjoyed the most which were printed designs. Some had a fun ruffles or even slight mesh. One had cute bears on them which he spent a good amount of time playing with, heck she even had a little green thong which even surprised him. “Oh wowzers....these are cute!” He held up the skimpy panties and examined them closely with a blush on his face. The elastic was yellow and on the front was a picture of a peace sign. He was beginning to sport a s small erection in his briefs as he toyed with the article of clothing. Though after the initial rush and spending time going through them all, he felt that he should put them back which he took his time getting them mostly back where they were originally placed. “Close enough, I'm sure she wont notice. She'll probably think mom did laundry or something.” He smiled and closed the drawer.

But this didn't help the fact that he still thought there was something else. He walked over to her bed and sat down to think. 'Maybe it really was just a matter of privacy. I guess I would be too if I was her.' He shrugged again and looked down at his bulge. He smirked at felt himself up with his paws. “Hrh...might not want to do this here in her room.' He thought and got up but just as he was about to leave, he picked up the scent of that air freshener again but much stronger. 'Dang sis...did you dump the hole thing in your room?' he thought as he sniffed the air. His canine senses guiding him, he eventually followed it to the source which was coming from under the bed. “hmmm” He bent down and poked his head under the bed and discovered a book, a small chest, and another decent sized teddy bear. “Obviously the book isn't it soo...” He mumbled and pulled out the chest. 'It has the scent but...' He paused his thought and opened it. “EW......” He stuck his tongue out. “Icky makeup!” He groaned and closed the chest. “The only other thing is that bear; why would id be smelly?” He said and reached for the stuffed toy only to move it and reveal a shoe box. “Oh ho! Whats all this then?” He said in a mock British accent and pulled the box out from under the bed. His tail was wagging back and forth in excitement. It was the thrill of the hunt which got him excited, though since he was a fox, it was in his nature.

“And behind door...or should I say under lid number two we have....” He said and opened the box. “Her diary!” He said and looked in to not find her diary but something else completely unexpected. “Wh-what..is....” He gasped at the sight; his heart racing again. Inside the box was indeed the source of the smell which was a can of air freshener but it was what was next to it. It was a sealed baggy containing a pair of light blue panties with little white flowers on them. 'Oh my gosh! These are so cute!' He thought and picked up the bag. “Why are they in here though?” He mumbled and popped the seal. Though when he did he was bombarded with a wave of different smells which took him by complete surprise. “Uh...uhm.....uh...” He stammered trying to make sense of things or...smells. Carefully pulling out the panties from the bag, he started to inspect them. They were your typical bikini style cut of panties but upon closer look, he noticed that the white flowers where a shade of yellow towards the crotch. Not only that, the light blue material was a hue darker as well. “N-no way....” He closed his eyes and gave them a whiff. His suspicions were right....it was urine. There was also a faint smell of something else, the only thing he could pin it on was a fart smell but he just assumed it was because the panties were 'used'. He did not know why but he was now sporting a full on boner. “She....she...wet herself in these!” He panted, his tail flopping all over now. “That....that is so....hot!” He almost instinctively grabbed his member but resisted. Everything was a roller-coaster of emotions in his head. 'Why am I so turned on right now? I should be grossed out but.....and she is my sister too...'. It was a couple of long seconds of just staring at the panties before he snapped back to reality and tried to figure it all out.  'Did she have an accident? Was she hiding them so mom wouldn't find out? That would make sense for the air freshener so no-one would know but....these are really...stained.' He pondered and turned them around. “Very staINED OH MY GOLLY!” He shouted and dropped the panties on the floor. His mouth was agape from the new sight. On the butt of the panties contained a good sized brown stain from a much different type of 'accident' “She messed herself too!” he yelped.  The puzzle connected now from the other scent he smelled.

He couldn't help it and picked up the panties again. Looking at them over and over and even turning them inside out. More and more his thoughts ran rampant as he ran his fingers over the material. “So...naughty.” He whispered “I wonder what it felt like too....use them.” He said, making his heart pound hard. He daydreamed about how the warm wetness of pee running through the fabric and down his leg fur. The growing bulge of his mess tenting and pulling down the back of the panties as he messed. “Ahhahhh...nnngh.” He groaned in ecstasy as he had a near orgasm. The front of his briefs wet with his precum. With his mind in full carnal desire, he quickly made the decision to do it. Standing up and with panties in his clutches, he walked over to the bathroom. “Oh man...oh man.” He said excitedly and closed the door, locking it behind him just in case. Luckily for him, the drinks he had earlier and the one he recently had were ready to leave. Stepping into the bathtub, he quickly discarded his briefs and stepped into each leg of his sisters underwear. Savoring the moment, he slowly pulled them up and around him. “Hnmfff” He groaned, feeling the soft fabric around his foxhood. Given that she was a little older than he was, the panties fit almost perfectly. He wanted to see how it looked so he momentarily stepped out and stood in front of the full length mirror. “Nice.....these are great!” He said and did a three sixty motion in the mirror. 'Pffferrt!' was heard as he let out a deep fart. “Perfect timing.” He grinned and went back to the tub.

Composing himself, he spread his legs apart slightly and concentrated. Of course nothing happened at first since years of toilet use forced his mind and body to not go. “Oh come on....” He sighed and tried to think of something. “Aha!” He said and turned the sink on just a tad so there was a gentle stream coming out of the faucet which did the trick as it caused his bladder to twinge. Relaxing once more he sighed and the dam burst. A small wet patch began to spread across the material as it darkened the fabric and soon there was a loud hissing sound as he peed full force. “Ahhhhh” He moaned and looked down. Rivulets of urine streamed down from the panties and onto his legs, wetting his fur and warming his legs. “Oh my god......” He sighed and watched again this time as a puddle of yellow grew under him. “Yup....this is awesome...” He mumbled as his stream died down to nothing. 'Drip drip, splash, splish' was heard as the sodden underwear leaked his fox urine. With a shaky hand, he began to rub his wet front, coaxing his foxhood to bulge more. 'Burrrftt' went another sound of gas from his behind as an indicator that his waste was wanting to leave him as well. In his same stance, he took a slight squat and stuck his rear out a bit. His tail was now flagging upward as he gave a push and soon an indent of his mess was pushing the fabric outward. He felt some resistance from the panties but pushed just a little harder which did the job as the panties soon bulged more, tugging around his waist and then slightly sagging as his mess began to coil in the seat of the underwear. 'Murrrr' He cooed as the warm mass filled the undergarment. Panting, he just stood there and reveled in the moment. “Holy triforce that's nice....” he sighed and stood up and reached his hand around to his butt. He carefully poked at the lumpy bulge which caused it to jiggle and  that made him giggle like a little cub. “I'm a naughty kit.” He said and jumped up and down making the bulge swish and sway. “Oh yeah...” He smiled and looked down to see his raging hard on.

“Time to do number three” He grinned and knelt down in the tub. With one hand he began to toy with his balls through the wet panties and the other reaching under the waist band to grab his member. Wet with his own urine he began to stroke softly as he caressed his tender sack. “Naughty kit...” He said and sped up he stroking. Mentally replaying the deed he just did in his head helped him in his quest for release. “Nnghh” He groaned as he felt the pressure build in him. Since he was still young, he did not have much control over his urge so the feeling of cumming was fast approaching. What was also approaching was the tiredness in his knees and soon it was too much and he moved back to adjest but lost balance and landed right on his butt causing a loud squish as his mess was now pancaked. “This sent him right over the edge and he came harder than he ever did before, squirting his seed in and even through the panties. “OH MAN...OHH...OH... AHH” He panted heavily as he basked in the pleasure.

“This...will totally not be the last time.” He huffed happily and got up. Post nut clarity kicked in a bit as he had to figure out how to clean his mess but he still thought it was worth it. It took him about an hour to cover up he mess. Flushing his waste down the toilet and carefully cleaning the panties back to....mostly how he found it. They had a slightly bigger skid mark and the yellowness was still there too but thankfully just water took away most of the fresh damage. After such excitement he was exhausted, so putting back his Mario cart briefs back on, he hopped right into bed, leaving his cartoons running in the background. That was one of the best night sleeps he had ever had.

*.Back to the present day.*

He sighed again as he saw his mom pull up the driveway and then saw his sister get out. The downstairs door opened and soon he could hear his sister come up the stairs. 'I don't know how just yet but I really find my OWN supplies to have my fun in. I wouldn't have to worry as much for the cleanup and also....it wouldn't be my own sisters panties.' he thought which it now dawned on him that it was kinda weird for him to play with his own sisters underwear.  With a stretch, he got up to go say hello like a good brother. “Hey Jess...” He said with a smile. “

“Brian hey!” She gave him a hug

He hugged back “How was camp?”

“It was great! We swam, learned how to make cool things and cook.” She smiled “But I tell you, I cant wait to be back in my own room and bed.” She chuckled and headed off to her room.

“Well I'm sure it will be nice sis” He laughed and watched her go into her own room. He mentally made sure he had put everything back as exactly as he had found it days earlier and to that he was satisfied.

 *.In Jessica's room.*

While it had been a fun week with her friends doing various activities, it was time for her to fully relax. She grinned as she walked up to her room 'And I know just the thing to help me....decompress.' she thought to herself and opened the door to her room. "Room sweet room....and oh how have I missed you." She said and stared at her bed. They didn't sleep on the floor at camp but the provided bunks were rather harsh at times, so her own bed was such a heavenly sight knowing she will sleep like a log. "No time for pillow talk though...I have something else in mind!" She murmured and got down on her knees and bent over to dig underneath her bed, her skirt riding up to reveal her green panties will pink ruffles. "Aha there you are." She said and pulled out a shoe box. Opening said box it revealed a can of air freshener, some wipes and last but not least the main attraction which was a pair of light blue bikini style panties with little white flowers on them; well they were white at one point. She chuckled at the sight knowing all the fond memories she had and what she was going to do. "Hello my pretties." She smirked and opened the bag and pulled them out. "Oh I have been waiti....uh..wait a minute..." She felt the undergarments and noticed something off. "Why are...these damp? I haven't used them since before I left for camp." She pondered "I know I dry these off real good before stowing them away...." Then it hit her, or hit her nose so to speak. It was a familiar scent, mostly her own but something else lingered...something like...BRIAN!?" she half gasped and growled. Quickly re-boxing her panties, she then stormed off to her brothers room.

Brain jumped  in fright from the sudden entrance by his sister. She looked very upset and angry. “h-hey sis whats with the sudden..” He started but was cut off

“Brian were you in my room?!!?!” She growled at the young fox, keeping her voice down for reasons.

His heart almost stopped. 'Oh hell there is no way...oh man...' He thought. “N-No you always tell me never to go in there....why would I?” He stammered.

“Come on dork I know you suck at lying for one and two I....well...My” She tried to say what she had discovered but that would be admitting her very private secret. 'Damn...I have no real proof. I know he was there, his scent is all the proof I need but I have to find another way.

“M-maybe mom was in there cleaning or doing laundry or something...I don't know Jessica but I swear I wasn't in your room!” He pleaded, sweating invisible bullets at this point.

She huffed “You had better not have Brian....” She growled again and turned around. Her skirt flipping up at tad showing her green ruffled panties for a split second and left.

He felt like he just dodged getting hit by a semi-truck. He flopped onto his bed and sighed. 'That was way too close for comfort' He thought. 'How the heck did she know I was in there? I made one thousand percent sure I put everything back and I even sprayed the air freshener.' He pondered but ended up drawing a blank. “I think it might be good to maybe get out for a day or so.” He mumbled and pulled out his phone to text his best friends Jenna and Tyler. \Hey guys, is it cool I spend the night? Jessica is back and well, she is being a butthead/ He pushed send.

A few seconds later he got the ok to come on over. Going to his mother who was downstairs, he asked if it was cool and she happily agreed. 'Time to pack and skip out. Hopefully she will calm her tail when I get back.” He said to himself as he packed his clothes and other things he needed for the sleepover. Though this will only be the beginning to his adventure.