Content warning:
There be some extreme cub incest smex ahead. And I mean toddler boy on young girl kinda stuff. You’ve been warned, so don’t come crying to me, when you can’t cry cause your eyeballs have melted out of your sockets from reading my smut. Enjoy!

Brother's private parts belong to his Sister.

A eight year old little mouse girl watched curiously, as her mother changed her newborn baby brother’s diaper. “Watch closely, Adriana.“ Her mother stated. “I might need you to change Klaus’ diaper sometime.” She added.

	Adriana looked in surprise when her mother removed the diaper, and cleaned her little brother. She had never seen what a boy looks naked, so the sight of her brother’s little penis confused her. She reached out, and poked it. “What’s that?” She asked, and was answered with a slap to the wrist.

	“Adriana! Don’t touch that! That’s your brother’s private parts, and it’s not for you to touch.” Her mother scolded her. Adriana pulled her wrist away, and huffed, sulking off. Her mother shaking her head as she did.
	
	Adriana Aidon, and Klaus Aidon, eight years apart, and both had white fur, red hair, and green eyes. Before Klaus was born, Adriana had been spoiled by her parents. They had believed that she would be their only child, until Klaus, a happy accident, happened. Adriana had been excited, and eager to have a brother, and was excited to have a playmate, even though there was a large age gap between them.

	The Aidon family lived in a small household, with only two bedrooms. Thus, Adriana Aidon, and Klaus Aidon were made to share a room together. Adriana pretended to sleep that night, when her parents put her, and her baby brother to bed. The little girl’s eyes peeked open, once she was sure her parents had gone to bed. Normally Adriana would grab her book at this point, and read with her flashlight. But she had something else in mind tonight. She carefully snuck over to her brother’s crib, and took him out. He stirred silently, opening his green eyes, and staring up at his older sister. She carried him over to her own bed, and laid him down. She grabbed her flashlight, normally used for reading, and used it to remove her brother’s diaper. Setting it aside, she shined the flashlight on his ‘private parts’. She grinned, before she began to poke at it, giggling as she did at the thought that she was disobeying what her mother said. 

‘I can touch Klaus’ private parts, if I want to.’ She thought to herself. ‘In fact, they’re mine now. I claim them.’ She added to herself, a wide grin spreading across her face. “Your private parts now belong to me, little brother.’ She said, putting her hand over her mouth, as she giggles. “I can do whatever I want with them.” She added, before tickling at Klaus’ little penis, causing the infant to giggle, and kick his legs a little.

	Curious, Adriana decided to remove her own PJs, and panties. She shined the flashlight on her own private parts, and poked at them with her other hand. She shiver slightly at the odd feeling. She started to play with herself some more, rubbing at her slit experimentally. She laid down next to Klaus, sliding her fingertip over her young, puffy lips, while continuing to molest her infant brother. Raising up her hand to examine her fingers, she was surprised to find them wet. She reached down, rubbing at her cunny some more, and gathering up more of the moisture from her private parts. She raised her fingers back to her face again. It didn’t smell like pee. She grinned, and pushed her finger into Klaus’ mouth. He reacted, by grabbed at her wrists with both hands, and suckling on her fingers, looking up at his older sister innocently as he did. She had to put a hand over her mouth to keep herself from laughing at the thought her little brother just sucked off that sticky stuff from her fingers. That thought made her private parts itch a bit. She pulled her finger from Klaus’ mouth, and started rubbing herself again. It felt even better with her little brother’s spit on her fingers. He toes curled, and she started to hug her little brother close, as her pleasure rose. After a while, her fingers became dry, so she stuck them into Klaus’ mouth to get wet again, before going back to it. After about an hour of this, she felt a pressure against her stomach. She moaned softly, and moved her fingers faster, bringing herself to her first orgasm. Her body spasmed, and shook as the pleasure ran through her. She had to bury her face into a pillow to keep herself from crying out loud. She rode the waves of after bliss for a few minutes, before remembering her little brother. She put his diaper back on, and returned him to his crib, before redressing in her PJs, and laying back in bed. She quickly fell asleep.

	From that point on, this became a ritual for young Adriana. Every night, she’d wake her brother, bring him to her bed, and masturbate while molesting him. Learning more and more, as she explored both her, and her brother’s young bodies. There wasn’t much to Klaus’, yet. He didn’t react much to her molestation, yet she found it just wasn’t the same without the warm body of her brother’s next to her.

	After a few years though, Klaus began to walk, and talk, while Adriana’s body began to develop. She found she was able to fit more into her cunny, and that her brother’s private parts was actually a penis. It was the night that their parents let Adriana babysit, that her sexual exploration really bloomed. For the whole night, she would have her little brother, and the house to herself. Adriana was now Eleven years old, and Klaus was three.

“Lets go exploring.” Adriana said to her younger brother. Klaus smiled at her, and nodded. “‘Splore where?” He asked. Adriana started running upstairs. “Lets explore Mom and Dad’s room.” She answered. Klaus followed her, on all four, up the stairs. When they reached the top, Adriana carefully pushed the door open, as if sneaking in. Klaus followed, looking about curiously.

	“LOOK!” Adriana exclaimed, going up to their parents dresser, and pulling down their mother’s jewelry. Klaus reached up, and pulled some of their mother’s necklaces down. “Pretty!’ He said, trying to put one on. Adriana helped him, and giggled. It was comically oversized.

	“Lets explore in here.” She said, opening the door to the closet. Adriana sat down, and slipped on a pair of their mother’s shoes, also way oversized for her tiny feet, while Klaus walked passed her, into the back of the closet. “I put shoes too!” He said, looking around for a pair he wanted to wear. He found a shoebox that looked like their dads, and opened it up. He made a confused look when he did. “Aw, there aren’t any shoes in here.” He said reached in, and pulling out a dildo that was hidden inside. Adriana walked awkwardly to where his brother was looking. She was just as confused, and curious as her brother. There was a bunch of weird things inside. A dvd case caught her attention though. She picked it up, and looked at it. On the cover, was a bunch of naked adults, doing stuff to each other.

	“Wanna watch a movie?” She asked Klaus. Klaus looked at her, smiled, and nodded. She took his hand, and took him out of the closet. She put the movie into their parent’s dvd player, and sat down on the floor with Klaus, to watch the porno. The two watched, as the people in the video had sex. Klaus didn’t understand what he was watching, but Adriana caught on quickly. She stood up, and began to undress. Klaus looked at her. “Are we gonna play the tickle game?” He asked. Adriana nodded. “Yes, but I wanna try the tickle game they’re playing.” She said, pointing to the tv. She sat down, and played with her pussy a bit, getting it wet like she always did, while reaching down, and rubbing at Klaus’ little penis. It still didn’t really react much to her touching. But now she wanted to try something else. She lowered her head, and sucked her brother’s penis right into her mouth. Klaus pouted, and grumbled. He squirmed a bit, shaking his head. 

“Noooo, that gross!” He said. Adriana pulled away, frowning. Still wasn’t reacting. She looked up at the video again, then back at her brother. “I’m just doing what they’re doing.” She said, pointing to the video. She then watched in amazement, when a guy in the video, started to eat out the girl. She grinned, laying down like the girl in the video was, and pointing at her young cunny. 

“See what those two are doing? I want you to do that to me.” She told Klaus. Klaus hesitated, looking up at the video, but soon agreed, and laid on his belly between his older sister’s legs. He leaned forward, and testing licked at his sisters slit. A shock ran up Adriana’s spine when he did. Klaus pulled back, looking up at Adriana. 
“I don’t kn- unf!” He was cut off, when Adriana pushed his head back between her legs. 
“No, keep doing that! I really like it!” Adriana exclaimed, pushing her hips up against Klaus’ face. Klaus was reluctant at first, but quickly got used to the taste, and proceeded to eat out his older sister.
Adriana moaned as she felt her little brother’s tiny tongue flicking against her clit. She watched the video as he did this. Mimicking the girls actions, she played with her flat chest, and tweaked her nipples. Twitching, and moaning at the feeling, and soon began to play with both of them. Her hips rocking against her brothers face. This way, she found herself reaching orgasm a lot quicker than she did with her finger alone. When that wave washed over her, she reached down, holding onto Klaus’ head, and crying out as the shock ran up her spine. She shivered, and relaxed, letting her brother go. “Ooooh… “ She moaned. Klaus sat up, but was quickly tugged into an embrace by his sister. “This is our new secret night time game, ok?” She whispered to Klaus. Laying there with her brother for a bit, before finally redressing, and cleaning up.