Len rested his paws on the railing of the stairway in his house, the young grey cat dressed in just a shirt and his shorts. He was listening, intently to sounds of the houses patrons, some visitors in the house just leaving, the floor moving and creaking as some fur above walked around in a room ahead, and his own breathing steadily raising t bring courage to his next set of actions. As the furs beneath left the house, a door shut, just in time for the fur ahead to turn on a shower. He took his time walking to the door of the shower room, allowing the fur inside to undress before he slipped in behind her. She was just bending over taking her panties off, her tail swishing and revealing all to the grey cat behind her unknowingly. He bit his lower lip, knowing he shouldn't be doing this but couldn't help himself, all the time she left her door pen, wearing nothing but tight panties, he could see the outline of her young tight feline pussy, each curve just barely covered by the fabric, now he can see it all as she bent over. He steeled himself and undressed quickly without making a noise. When she checked the temperature of the water flowing from the faucet he took his chance and pressed into her backside, paws tightly gripping at her hips. She jumped against him, his touch causing a shiver across her body.

	"shit! Len.. what are you...-" she was cut off as she felt his hard member pressing into her back side, it dripped pre against her ass. She blushed behind her pink hair, "the hell...-" she was cut off by his paws caressing down her sides till they rested against her crotch. 

	"you're not fighting it" is all he could let out as his fingers touched her slit, he could feel her biting her lip as he touched her, he grinded his cock into her tail, soaking the fur with pre. 

	"we can't.." is what she mustered to say but pressed back against him anyway.

	"can't.. or won't..?" he asked, his fingers spreading her slit open to press that little button of a clit, he stroked it with a finger, rubbing it in circles. 

	"ah.. we.. shouldn't.." she tried convincing herself as she pushed back harder, wanting to feel that thick cat shaft push inside her. 

	Len finished talking, he knelt behind her, pushing her forward a little so he could sniff at her opening. He heard her gasp, and instead of fighting it she spread her legs, his tongue pressed against her slit, pushing aside each lip to force its way inside her. He could taste his sisters pussy for the first time, he was gay, but couldn't resist the temptation. The feeling of his raspy tongue inside her made her shiver, she pressed her paws onto the wall to hold herself up, her tail raised high. His nose pressed into her tail hole as his mouth completely covered her cunt, his tongue swirling and lapping at her insides while his paws slid up her legs, caressing them softly. His heart was beating fast, he could feel her juices flowing onto his tongue, her body shaking in his grasp as he ate her out, it drove him wild. Reluctantly he pulled from her groin, his tongue lapping up and sticky fluid from his muzzle and her taint. Standing up behind her, he rubbed his pink thick cock against her hole, he could hear her panting halt. She looked over her shoulder at her brother standing behind her, his hips pressed against her ass as his cock rubbed between her dripping lips, coaxing more of her sticky juices to cover his shaft and tip.

	"d-do it..." she gasped as he didn't need anymore encouraging and impaled her onto his dick. It slid in slowly, inch by inch pushing past her barrier and entering her, claiming her womanhood. Grunting as he hilted himself inside her, they stood still for a bit relishing in the fact that they were brother and sister. They began to move when his cock throbbed in her, first he pulled away and she pushed back when he pushed in, hilting in each time. They both had fantasized about this moment, his cock hard and filling her pussy, each thrust spurting out pre from both. Their movement was slow at first, but quickly escalated as if they knew each others motions and bodies well. He pumped deep into her body, his balls pressing to the lips of her cunt. Their hips met with a loud slap each time, the sound barely muffled by the running shower along with their moans and grunts. His chest and stomach pressed into her back, pushing her up against the wall, grinding deep inside her pussy he bit at her ears softly, licking at them. She clamped down hard around his cock, her blushing cheeks revealing that she was orgasming, her pussy quivering around his shaft flowing juices covering his crotch, he gyrated his hips as she climaxed. Panting and heaving she could feel him pull out of her, she jerked her head around confused and feeling sad that he pulled out, but just to see him laying back on her clothes and a towel, his still very hard cock throbbing and sticking straight up. He beckoned her over to climb on top. She watched his cock bob from side to side as she lowered herself into his lap, the thick cock pushing inside her once again. She moaned, arching her back as the member stretched her open once again, she leant back lifting herself up and slamming back down onto his pelvis. His paws gripped her hips as he bucked upwards, watching as his cock pushed into her pussy and out again. He could see her juices covering his cock and being pulled out as she rode him.   
	  
	"shit.. you're pussy is so tight" He panted and grunted, his claws digging into her hips as she bounced along his length, her moans growing louder and more frequent. 

	"nnn... f-fuck.. fuck me harder" she cried out, her body aching in pleasure as her brothers cock pistoned in and out of her cunt, she could feel the tip of his cock push into her womb, the hot pre slicking her passage for him. 

	They bucked on the floor, her hips slamming down harder and faster as her claws raked down his chest, fur spreading through her fingers. He gritted his teeth, trying to hold his orgasm back, he wanted to enjoy every second of this encounter before he blew his load. He pushed his hips up hard, burying all o his fleshy pink pole deep inside her till he couldn't see it anymore, his pulsing cock driving her crazy. She wiggled her hips in his lap, her plump pussy tightly squeezing and rotating his dick as she comfortably moved around. He moved a paw to rub at her clit again, feeling the sticky mess against her crotch, he smeared the juices over her swollen clit, pinching it between two fingers, pushing open her lips to see the wet pink flesh wrapped around his cock. He growled lustfully as he wrapped his arms around her, pulling her down and rolling onto of her, his hips now pulling all the way till just his tip was in her, slamming his hips down hard, his pelvis brushing into hers. She cried out, pulling him against her slim body, biting down hard onto his shoulder to muffle her moans. Her legs were pressing into her chest as he pounded into her spread pussy, his paws on either side of her to hold himself up. He grunted with each thrust, his body worked quickly in and out, slapping his balls against her taint, his tail lashing about wildly. 

	"I'm gonna... ah.." he grunted, biting at her neck, his pace slowing down a bit.

	"do it.. cum in, I want to feel your hot cum fill me" she panted, holding tightly around his waist with her legs, locking them behind him to keep him from hesitating and pulling out. He had no intention of doing that as he slammed in one last time, thick ropes of his seed flooding his sisters womb. They both howled out in pleasure, she clamped tightly around his cock, milking his balls empty. He drove his cock in as deep as it would go, his toes curled up until he was finished. He slowly pulled himself from his sisters cunt with a sloppy slurping noise, cum drooling from his tip connecting from a rope to her swollen pussy. They panted and purred covered in sweat and glistening in the light.

	"you should clean up" he moved from on top of her, sitting back against the bath tub.

	"Yeah..." she stood, cum drooling from her pussy down her thighs. "we should do this again" she said with a slight smirk before walking into the shower. He licked his lips, still tasting his sisters pussy on himself. 

	Two months later the grey cat sat in his room, touching himself. He was in the middle of a book report when he heard his door creak open behind himself, he turned to see his sister walking into his room, she shut the door behind herself. Its been a while since they were alone together, he looked her over, even from here he could smell her heat. He thought of that day, of how he had fucked her on the bathroom floor he grew hard just thinking about it. He stood up from his chair and started toward her, she could see the growing bulge in his shorts, she bit her lip.

	"no ones home..." she began, his paws already stroking her hips and undressing her, she ran her paws against his hips, pushing her fingers under his waist band and pulling his shorts down revealing his stiffening member. It flopped free from its confines, she gripped it in her paw and stroked it, it was thick and hard, pre already coating the tip. 

	"I have to tell you.. I.. I'm pregnant" she bit her lip, afraid of how he would react. he just sniffed at her neck and bit her softly thrust into her paw.  
"do you want to stop" is all he asked, she didn't reply, she gasped softly at his nibbling and shook her head.  
	"then let's keep going. Keep the baby" he kissed down her chest and her stomach, his muzzle reached her velvety soft slit. He pressed his tongue out and licked it gently, his raspy tongue pulling at her lips till it pushed into her hole. He savored her taste, she was sweet on his pallet. Murring into her pussy he looked up at her, already noticing a small bump in her belly. He wondered about the cub inside her, how it would look, what everyone in their family would say to them for it, if they should even mention it to them. He closed his eyes, tilting his head as his tongue swirled and lapped at her juices, remembering each of her ticklish and favorable spots. She moaned, pressing her back against the door behind her, her legs spreading and knees shaking, giving way under her. Len held her up, licking up her slit, his tongue pushing against her clit, he nipped it between his teeth and tugged it slightly before lifting up and licking her belly button. His paws wrapped around her waist, holding her up, he lifted her and grinded into her cunt, her legs wrapping around him. She held on tight, arms around his neck and legs around his body, she could feel his tip trying to pierce her veil. 

	"nnn put it in... I want you to fuck me.." she bit at his shoulder, claws pinching against his flesh. He held her up higher, pushing his tip right into her cunt, pushing it deep into her, knowing how much she is capable of handling off the bat. He pushed in till he was balls deep, resting his cock inside her until her body stopped shaking from the intrusion. He had to hold back from ravishing her, just thrusting and completely trashing her cunt from the beginning. He pulled slowly from her tight pussy, his tail thrashing about as he pushed back in, keeping himself from slamming in. He could hear her whimper, feel her writhe under him as he pushed her back against the door his hips pressing tightly against hers. He slowly built up a rhythm of thrusting into her, each thrust making her squeak in pleasure. 

	"nnngg.. you're so big.. it hurts..." she moaned, keeping a tight grip on her brother as he pumped his thick cock into her hot pussy. He nipped at her ears, her tight pussy clamped down hard, but was soft against his fleshy pole. He grunted into her ear, pounding into her now, lifting her up and letting her weigh slammed her down along his length. She gasped each time, panting heavily and lifting herself up and down, he could feel her juices flow over his cock, dripping down his balls. They both groaned, feeling the tension they've had for the past 2 months just slip away as they fucked. His paws gripped tightly around her ass to help lift her up, and thrusting up when he let her drop. He thrust in deep each time, burying his cock in her, his hips gyrating with each thrust as he filled her over and over again with his dick, his sisters pussy quivering around him. 

	"nng so fucking tight... you feel amazing" he panted, his tongue hanging out of his muzzle, licking at her neck before biting it again, his thrusts keeping a steady pace along with her moans. The door behind them creaking and thumping with the beat of their hearts, their breathing heavy and the air around them musky with the scent of their heats pumping out sticky pre-cum, the sweat dripping from their bodies and hot breaths. Holding her tightly in his arms, he walked to his bed, and plopped down, laying back he thrusted up into her. She panted and moaned, sitting onto her heels, she flipped herself over, riding reverse cow girl and bounced up and down his length. He gripped her ass and spread her cheeks, watching himself slide into her, a finger prodding at her tail hole as she bounced. using a paw to prop herself up, her other one played with his round fuzzy balls. She tugged gently at them, feeling how heavy they were with cum. He purred as she stroked his balls, feeling as her fingers touched and probed his tail hole.

	"nnng keep that up and I'm gonna cum..." he panted, his balls tightening in her grasp, he was close already. Her hips writhed and wiggled against his pelvis, driving his cock deep, and hard against her cervix. 

	"mrr that's the point little brother" she pushed a finger into his hole gently, she could feel his anus tighten around her finger, she could also feel her brothers cock pulse and pump a hot thick stream of cum deep inside her womb, she purred in pleasure, he howled out and gripped tightly onto her hips, slamming in hard one last time, emptying his load once again into his older sisters pussy. 

	"ahh... fuck your pussy is amazing.." he panted, she clamped down tightly around his cock, keeping all of his cum from escaping. She fell back against his chest, panting as well, he hugged around her pregnant belly as his cock popped out of her cunt oozing cum followed after, pouring out her slit and down his shaft and balls. They laid there tired, panting and heaving.