Trevor is a young handsome bunny, with a snow white coat, long hanging ears and burning red eyes. His pants were usually showing off a bulge filled with his cock and balls, but as he was still young and inexperienced, he wasn't quite aware how big he actually was. Growing up eventually the time came around, where he and his classmates began to hit puberty, making his cock grow even bigger and handsome features even more pronounced. Predictably he also became very popular with the girls, dragging a small swarm of them wherever he went, some more some less attractive. He enjoyed their attention, as he wasn't too popular with the boys now, even getting bullied for a short while. Even so he never dated any of them, he just wasn't interested in them, he wasn't quite sure why. So eventually rumors began spreading, that he might be gay, even reaching his parents, which resulted in a big sex talk. 
But as he would soon find out, they couldn't have been more wrong. Because he found the person of his desire when his sister was born, or to be more precise a few days afterwards. She was also a bunny with white fur and hanging ears,  only her eyes were different to his being as blue as the sky. 
The fateful day arose shortly after she was born. His parents had to leave the house for a couple hours leaving him and his sister alone for that time, thinking he would be able to take good care of his little sister. But until now Trevor only learned to despise his little sister, as his parents started to only pay attention to her and not him anymore. Leaving him feeling jealousy towards her, even going  so far that he didn't even bother to learn her name and spacing out whenever their parents talked about her, which was practically all the time.
So when he was disturbed by her crying,  while enjoying a movie on the television he got very angry and hastily moved over to discover her diapers needed to be changed. After he pulled them down and put them away, he was met with a very exciting view for him, her tiny premature pussy. He must have stared at it for a long time, since his sister became cranky just living there, but it was far too exciting to just stop there. He had only seen the ones of more mature women in porn on the internet when he decided to masturbate. So it looked much different to what he was used to and he had to admit arousing and exciting. It was so pure and innocent, not used and gaping like those sluts on the internet. As he was staring at it his dick quickly became erect inside of his pants, so he quickly pulled it out, not wanting to be uncomfortable as no one was around to witness it anyway, well besides her,  but she couldn't tell anyone anyway.
That's right she couldn't tell anyone anything he did to her! Just the thought alone made him shoot pree on the floor. He leaned closer and started playing with his sister's little cute vagina, even pushing a finger inside and discovering his sister's entrance. He knew he shouldn't be doing what he did, but his parents wouldn't be home anytime soon so they wouldn't know and his cock was throbbing and aching with lust. Maybe if he would have been older or had a girlfriend or even both, he would have thought twice about his actions, but right now there was a virgin pussy and his cock was so hard it started to hurt without any attention.
So he opened his sister's pussy with two of his fingers, trying to see how far he could stretch it, while one of his hands moved down to stroke his pulsing member, leaking pre on the floor like a faucet. But he was inexperienced in pleasuring a woman's body, so as he continued his exploration and stretched her even further getting his first glimpse of what's inside, he started hurting his sister, who began crying her eyes out. He quickly tried to silence her by covering her mouth with his hand, which made him unable to play with her pussy or stroke his cock. So he stopped for now with his exploration continued, while stroking his massive rod as he was getting close to blowing his load anyway. When he could feel his balls tightening and sending his cum, he pushed his tip against her pussy and blasted a massive load inside of her, her inflated belly not too noticeable with all that baby chub anyway. When he finished he finished changing her diapers thinking they would suck up his cum anyway.
Ever since that day he would try his hardest to get to look at her naked body as much as possible. Though she was making it hard on him as she began often crying just seeing him being around, but his parents seemed none the wiser so he continued his exploits, even starting to make films whenever his parents weren't around to use for later. Eventually his lust for his own toddler sister was growing beyond being able to be reasoned with, so he made plans for when his parents left for another date night, wanting to have his way with her no matter the cost. He started to just get hard from thinking of all the things he would do to her tiny body, having to resort to jerking off even at school, unable to get his erection down by any other means. His phone filled to the brim with toddler porn he made of himself masturbing to his sister, filling her with his cum each and every time.
But his patience eventually paid off, he was left alone with his sister once again, his parents going bowling for the night. Just after he heard his parents car leave the driveway and he was sure they wouldn't come back for keys or something, his lust couldn't be contained by himself anymore, he stripped off his clothing in a flash. His sister was already in his room since he claimed he wanted to play with her as much as possible. After his clothes were gone hers were next, taking them off so forcefully he tore some of the fabric and even hurt his sister who began crying as he hurried to be able to look at her pussy once again. His cock was harder than it ever was and his balls filled to the brim as he hasn't gotten a chance to masturbate today yet. But all the waiting and lasting was over and now he would finally be able to stuff his gigantic rod inside of her without any mercy.
He still didn't love her, he only loved her body, so he didn't care or even think about making it pleasurable for her as well. He just casually stuffed her mouth with his undies to make her stop screaming, like he always did when his parents were around while he decided to play with her. Having her mouth stuffed made her quiet but she also knew what was going to happen, which made her thrash while trying to remove them. But she wasn't met with success as he just grabbed her arms and held them down with one hand above her head. He could tell he was hurting her, looking at the beautiful tears running down her face, but her screams and sobs were muffled and wouldn't alert anyone anytime soon. So having her in his control and all to himself, he finally could move himself into position and he just now saw how big his cock was, especially compared to her tiny toddler body. When he placed his cock on top of her belly, with the base at her wonderful toddler pussy, it was going all the way up to her tiny throat.
Just looking at his cock dominating his new toy underneath it made thick and salty precum shoot out of the tip into the toddler's eye. He loved seeing the agony on her face as his sperm burned in her eye, causing her to thrash again, never having seen her brother this aggressive. He thought about jerking off right now, so he could blast his load right on her face just to make it even worse, but he needed something different, he needed to destroy her tiny cunt. While still having his cock on top of her, he started grinding it against her, his own pre slowly covering his cock and her body making it nice and slick. After it was covered and he couldn't hold back anymore, he pulled back and placed his tip against her entrance, first trying to push it in slowly, trying to savor the wonderful moment.
 Still being a toddler her pussy was way too tight, so the resistance was way too big to go slow. So he did the only logical thing and began to push harder and harder, having to hold his dick in place so it wouldn't slipp and miss its target. While doing what he did, he was also enjoying the terrified and pain ridden face of his sister as he slowly forced his cock this first few inches inside. Finally after his tip opened the entrance for him, all it took was one strong thrust and the rest of his cock finally went inside. The pleasure for him was just as immeasurable as the horrifying pain of his toddler sister as her insides were stretched and pushed aside, making way for the massive cock inside her. 
Technically he didn't went further then half his length with the first thrust, but he did it he finally was fucking his sister like he wanted for so long and it felt like heaven heaven. He wanted to take it slow and last long but his perverted need took over, having only half his dick covered with toddler pussy wasn't enough. So he began forcing more and more of his child loving cock inside of his baby sister. Her belly began bulging out in the shape of his cock, until it went as far as her throat and his balls slammed against her small but juicy rump.
He wouldn't hold out for long feeling like he found his personal heaven deep inside his sister. All it took were a few minutes of savage pussz destroying thrusting, for him to start filling his sister with his baby batter. He could watch his cum ballooning out her tiny belly, he was blasting so much more than when he was just masturbating. Her belly grew so big it was making her look pregnant in no time. 
After his orgasm was over, he let out a satisfied sigh as he began to relax next to her, no next to it! He decided in his mind that his sister was no more than a toy for him from now on. So he was just letting his cock stay inside her, carelessly  plugging up her cum filled womb which he surely thought was destroyed by is cock. He gently rubbed her inflated belly admiring his work, which surely wouldn't be the last time he would use his sister like that. As he kept relaxing he eventually slowly started to fall asleep into a deep dream, where he kept fucking his sister which resulted in similar motions in the real world.
He suddenly awoke to a screeching scream of horror, when his eyes shot open, he was staring at his horrified mother who had returned home to witness the horrifying scene before her. Her darling daughter had been violated by her own son… to be continued...