A boy stood before a large treehouse, clutching a paper in his hand. The paper had a crude doodle scribbled onto it and that was his invitation to join Gnar for a weekend sleepover. He began to climb the rope ladder up towards the wooden house: a task made more difficult by the backpack strapped around his shoulders, containing more than enough snacks and changing supplies for a little human his age. Reaching the top and letting himself inside, the boy was immediately tackled to the floor by an energetic Gnar. The pre-historic Yordle greeted the boy with his usual excited babbling as the two hugged and wrestled on the ground. The orange Yordle wasted no time yanking the human's shorts down and exposing his diaper which Gnar admired with his large, black eyes. The boy was unfazed by the act, as it was usually the first thing Gnar did when the two were together. Gnar then rummaged through the boy's bag with the sounds of video game cartridges clacking together within before he pulled out a diaper. Stripping off his loincloth right in front of the boy, Gnar quickly fastened the fluffy undergarment around himself. The young yordle looked down, happily observing his front and back, even showing his padded rear off to the boy. The young human clapped and giggled with excitement as Gnar shook his butt. Though Gnar was more than fascinated with the boy's diapers, it was the first time he had put one on himself. Gnar was excited with his new attire and grabbed the boy by the hand, leading him back outside. He intended for the pair to play throughout the forest while there was still plenty of daylight left. They spent hours chasing each other, roughhousing in the tall grass and splashing through a stream, only to stop for snacks and the occasional diaper change. Gnar was the more responsible and capable one, changing himself and his friend when the need arised. But Gnar wasn't shy at all about staring at the human's naked form longingly. He even touched around more than he needed to, poking at the child's weiner and playing with it. He'd even look at the boy's butthole with fascination as the yordle's erection poked at the inside of his own diaper. Though the little boy was always easy to make friends with, he knew the activities Gnar always wanted to do were unusual. Though he didn't mind how strange they'd get, as long as he was making Gnar feel as happy as the human did just being around his furry friend, that was all that mattered. Gnar loved his friend, but he was wanting to have more than just a simple friend. Being a creature from a much more wild time, the young yordle was filled with a lot of sexual energy despite his age. Over time they've known each other, he had been testing the grounds with his human friend to see if he could be suitable for the yordle's needs. Though Gnar's advances were originally met with confused looks, it didn't take long before the human allowed Gnar to do anything without resistance. He could get the boy to pull his diaper out, giving Gnar a good look at his tiny little dick and balls. The yordle can even go as far as to pull his own cock out, urinating down into the human's diaper and he'd still continue to hold it open. The human came to enjoy the fresh warmth of the yordle's pee as it soaked into his soft padding. Knowing his friend was perfectly submissive, this sleepover was the final test. Now that the two of them were alone for an entire weekend, the yordle could do whatever he wanted without worry. As the sun began to set, the pair ran back to the treehouse to settle down as well. A quick meal and shower later, the two were ready for bed. The young boy sat up in the large bed, waiting for Gnar to come join him. Feeling a bit sleepy from their eventful afternoon, the human rubbed his eyes and began to doze off. His eyes weren't shut for very long before he began to feel weight shifting around on the mattress. Feeling soft fur brush against his bare legs, the boy opened his eyes and sat back up. In front of him, the blanket stood in a large lump. Lifting the blanket up, he was greeted by Gnar's two large ears springing out from beneath it. The boy laughed at the presence of his friend, who was sniffing at the boy's diaper. Gnar was clutching a small bottle of clear fluid in his hand and finally turned his gaze to the human. With the yordle sitting up over him, the young human felt a sense of comfort. As Gnar began to crawl over the human, his fur brushed and tickled against his skin. He giggled until Gnar was now face to face with him. Their noses made contact and Gnar's tail swayed behind him. The boy felt warm and safe beneath his furry friend and began to feel things he didn't understand as he stared into his eyes. Though he knew the things Gnar liked to do with him were wierd, he was ok with it. There was a strange feeling of satisfaction of being admired and lusted over by the yordle. The reality had finally occured to him that it was just him and Gnar and nothing could come between the two of them. If submitting to the yordle's desires made his friend happy, the boy would let him do anything. He gave the yordle a small smooch on the nose, thinking the yordle would enjoy something gross like a kiss. Gnar returned the favor immediately, locking his lips with the human. Nothing was gross to the boy, as long as it was with Gnar and he even opened up his mouth which allowed the yordle's tongue passage inside. Gnar's ears flicked and twiched as he groaned into the human's mouth. Their tongues slithered around as saliva was exchanged back and forth between the two. Finally Gnar pulled away, kneeling up with his diaper pressed against the human's. The orange yordle was quick to undo both of their diapers and in the blink of an eye, his cock rested on top of the boy's. The little human always always impressed with the size of Gnar's penis in comparison to his own. Though the two boys stood nearly the same height, the yordle's erect penis dwarfed the human's. Gnar popped open the cap of the little bottle he held, smearing some of its contents onto his cock as well as around the boy's asshole. The little human giggle as the slippery substance was smeared onto his delicate anus, kicking his feet slightly. Gnar had been waiting far too long for this moment and the biy had no idea what was in store for him. Grabbing his friend's legs and spreading them so the human's cheeks would part ways, the yordle poked his cock at the puckered pink hole. Barely able to contain his excitement, Gnar prodded away until finally slipping his member entirely inside the human. The initial penetration didn't bother the boy in the slightest as he saw it as another strange game for the yordle to enjoy. Though as Gnar continued to slide his cock in and out faster and faster, the boy's heart began to beat intensely as his blood pressure skyrocketed. The air escaped his lungs in long drawn out moans as Gnar thrust his cock in and outward, his pelvis colliding with the boy's ass repeatedly. In contrast to the human's moaning, Gnar gave out short little gasps and moans of pleasure as his lover's tight asshole stroked his shaft. Despite the repeating exercise, the human's anus continued to grip at the yordle's cock with each motion. The yordle had a lot of stamina and continued thrusting his hips back and forth for several minutes, offering the little human comfort by ocassionally rubbing his belly with a fuzzy hand or more kissing on the mouth. With the yordle at his peak and the session nearing its end, Gnar finished himself off with a few final and powerful pushes as his cock twitched within the boy. Spilling out his yordle semen deep within the boy's rectum, Gnar gave out one last moan . He gave his own body time to finish squeezing out the last of the cum it had released before pulling himself out. Realizing just how tiring sex could be, Gnar refastened the diaper onto his friend before putting on his own and collapsing next to the boy. For the human, this was much more intense than anything Gnar had done before. The boy felt a bit awkward from the entire thing and Gnar could tell. The yordle booped the human on the nose to get his attention. Now looking Gnar in the face, the little human could see just how happy the yordle was. Seeing his friend so satisfied was reassuring and the human's mixed feelings quickly washed away into happier ones. He gave Gnar a little goodnight smooch before shifting around with his back to the yordle. Gnar was happy that the human felt happy and reached an arm to rest around the boy. Scooting closer to him to create a much tighter embrace, Gnar's padded crotch now pressed against the butt of the human's diaper. Though the boy's behind felt a bit sore and leaked throughout the night, he was very comfortable. Safe and sound in the embrace of Gnar, he had no trouble dozing off.