I blinked my eyes open and awoke, stretching lazily in bed - reaching out, my paws find the warm, feathery hide of my sister curled up next to me. The warm morning sunlight drifted through the window to shine on our bodies, highlighting the two raptor siblings sharing a bed. I smiled to see she was still asleep as I spent a moment listening to the peaceful sound of her breathing. I already wanted a closer look; pulling the sheets from around our waists revealed us to be wearing nothing underneath. I sighed softly as I gazed over her thick and meaty tail, my regular morning erection quickly swelling, throbbing and drooling with need. Just under that inviting tail is her irresistable raptor ass, looking delicious enough to bury my muzzle in... 

My paw begins to drift down to play with my aching cock as I slide in closer to my sis, letting my firm shaft brush against the back of her thighs. I let my paw begin to explore those silky scales of her legs, recalling how nice they feel as I'm sliding into her- "Mm.. that feels nice.." I hear my sister softly say, tucking her legs in a bit closer. 

"Hey sis," I reply with a grin, letting my legs rub up against her own, feeling her heat closer to my claws as they ease into the reaches between her thighs.. making my cock twitch and pulse with desire, precum drooling wetly down the backs of her legs. Casually I caress the very warm, moist folds of her pussy, grinning as I think about how much of my cum is still inside her. 
"Ahh.." I hear her moan softly as I press in close, ducking my head in under her arm with a toothy raptor grin, my lips seeking out the naked curve of her firm, supple breasts. 
My sharp raptor teeth latch on to the dark flesh of her nipple, sinking in just a little bit as I hear her gasp, her folds tensing against my claws. I can tell how bad she wants it when I ease two of those fingers into her hot and slimy pussy, just letting those walls grip around my claws.

I can hear gasp and moan at that and I just nuzzle deeper into her cleavage when her back arches with pleasure. "Mmnf.. Kale... just let me use the bathroom first." She moans in protest as I pump those two digits in her lovely folds. Though her words remind me of the pressure in my own groin, same as every guy feels when he wakes up. 
"Fine," I say. "Me first though!" 
"No, fuck you, I need to go!" She starts to wiggle in my grasp, finally sliding her feet onto the floor and making a dash down the hall.

Taking a moment to lick her sweet, sticky juices from my fingers, I grin at her round ass bouncing under that deliciously thick raptor tail as she runs down the hall. I quickly heave myself out of bed in pursuit, complete with my raging boner bouncing and swinging obscenely in front of me - making sure it slaps against her ass as I catch up to her, just as she was opening the bathroom door. I hug my arms around her waist and pull her to the side, sliding into the bathroom before her. "Hey douche bag!" She growls with frustration, though my goal is in sight: claiming the white porcelain throne in victory.

Wary of my sister's attempts to defeat my mission, I quickly plunk my ass down on the toilet seat. "What, you pee like a girl now?" I hear her say and look up as she smirks at me, sticking her head in the open bathroom door. 
"Fuck you bitch," I snort back, "And stop watching, c'mon, I'm getting stage fright." Aware of how undignified I was starting to look, my cock was still sticking straight up, refusing to go down through all of this. I grabbed it in my paw and slid tried to shove it under the seat, and even then, do you know how hard it is to pee with full morning wood? I was just going to have to wait it out- 

"Seriously, are you going to take longer than a girl?" Felicia gave an exaggerated sigh, still watching my struggles with a smirk from the doorway. She fully enters the bathroom, her tail shutting the door behind her as she comes to stand directly in front of me, making me crane my head to look up at her. "Let me show you how a real man takes a piss." Suddenly a thick stream of liquid splattered on my chest, my gaze drawn with surprise to focus on the gleaming yellow stream of piss shooting from the valley between my sister's thighs. 
"Hey, you nasty bitch!" I cry in feigned outrage. Grinning wickedly at me she purrs,
 "Shouldn't have got in my way, dumbass." 

Her paw moves to pull the lips of her cunny apart, aiming the golden stream of liquid with impressive accuracy for a girl. I find myself thrumming and panting lustfully, unable to pretend I don't love it. Especially the scent, strong and distinctly female, her hot urine has completely soaked the scales and feathers of my chest, running down my belly. I lean back against the toilet to give her more area to cover, pulling my cock up again, throbbing once more with a burning need. Indulging my kinky raptor habits, Felicia steps even closer and lets her deluge of pee target my crotch, that intoxicating raptor piss now splashing off my penis, soaking the entire area around us and feeling just heavenly as it drips over my balls.

"Lemonade for breakfast bro?" She asks with her toothy grin, knowing she's making my heart pound with lust. I eagerly open up my maw wide for her as her paws reach to the back of my head, firmly pulling me forward into her crotch.  Giving her cunt a good slurp with my tongue, my lips hungrily wrap around her pussy, surrounding those wet folds so her hot, musky piss can flow directly in my thirsty muzzle. I lick and suck right at her urine like a straw while my tongue laps over her clit as well, getting her crotch soaked and dripping all over from the splashing liquid. It's soon dripping from my lips, cheeks start to bulge from holding in the load. Finally swallowing that massive, sickening gulp, I nuzzle my lips and nose at her cunt, kissing at those folds while the liquid just flows out around my snout.

"You're such a nasty boy, Kale." She purrs down at me with her grin, while my tongue firmly licks into her folds, cleaning her of every lingering drop. 
"You love it just as much, you filthy slut." I grin back at her, seeing her start to breath harder from all my hungry licking and sucking on her moist and needing cunt; still basking on the toilet, now covered in my sister's pee and just getting hornier by the minute. 
 "Oh, I'm not done," she says. I blink as she stands a bit wider, then listen with surprise as a deep, rumbling fart cracks the silence of the bathroom. Following the lewd ripping of her tailhole, my nose immediately detects the strong, nasty scent of her gas. 
"Ugh.. you girls are fucking gross..." I pretend to complain, even as my paws are reaching from her hips to grab that squeezeable ass of hers. 

"Don't lie to me brother.. I know what a shit-lover you are." Her sexy, curvy body begins to turn in my paws, my heart racing again as the full, round cheeks of her rump come into my view, sending my cock throbbing into overdrive. "Go ahead, I know you want to stick your nose in and sniff my asshole.. I only pretend to be asleep when you do that, you know." I feel myself blush strongly, thinking of how many time's I've enjoyed the luscious scent of her ass. She must have left it dirty for me as I would hunger for the brown streaks of waste lining her beautiful hole. She really knew me too well. I was quivering with nervous anticipation as her tail raised above my head, treating me to the sight of my heart's deepest desire. My paws grabbed those deliciously tight raptor buttcheeks with both sets of claws, spreading my sis's curvy little rump open wide. 

I was leaking precum all over the toilet seat as I just gazed with pure desire at the muscled ring of her tailhole. She must have known I was staring, as she flexed the dirty brown hole outwards a little for me, showing off every puckered facet of her anus. It was driving me nuts, I just had to dart my head forward and bury my nose in there. Her scent was perfectly rank and pungent as I inhaled with all the strength in my lungs, panting like a wild beast as I exalted in her scent. Suddenly her shitter flexed again and spread open as a hiss of gas could be heard, followed by that puckered ring of muscle rippling with a loud "Pfffffrrrrbbrrt!" The smell of raptor dung overwhelmed my olfactory, and I opened my mouth to be treated to a lovely hint of her taste splattering onto my tongue. I smacked my lips with satisfaction at such a rare treat and tilted my head, planting my lips firmly on her tailhole. Before it could close again, I gave the muscled sphincter a deep, loving french kiss, suckling at the sensitive flesh and nipping it with my sharp raptor teeth.

This really made her moan out, feeling my wet and slimy tongue bathing her dirty tailring as the muscle delved into every crevasse for whatever bits of lingering scat I could find. I took my time to luxuriantly lick her sweaty ring, leaving it wet and glistening in my spit. "Mmmn, Kale.. feeling hungry?" I nodded most eagerly and begin to snake my tongue up her anal passage to show here just how hungry I was. 
"Rrr.. yeah, scat-sis.. gimme your big, nasty load." 

I had only worked a few inches of my tongue into the relaxed vent of my sister's sphincter before I reached an unmistakable blockage pushing back against my tongue with firm texture and bitter taste. "Been saving up for me?" I ask 
"Maybe..." She grins at me over her shoulder as she squats down with legs spread and tail raised. First I can hear the wet squishing noises coming frome within as I watch the muscles of her anus straining and flexing. Within moments, her hole spreads open wide to reveal a massively, thick, rounded head of shit, her hole opening wider still as the log spreads her wide. 
"Damn Felicia.. you're packed.." I can tell she's taking it slow as she can to let me enjoy the show. I keep her cheeks firmly held in my paws, spreading them wide apart for full access to this filthy, nasty raptor treat. When a couple inches have emerged, I lean in close and let my tongue lap over the firm, round end of the turd. Her taste is pleasantly bitter, the texture of her dung is like licking ice cream, only hot instead. 

Every inch she pushes out brings another wet squishing sound, and I wrap my nimble tongue around her log, careful not to break this masterpiece off yet. I bring my lips in closer and start to tenderly suck on my sister's turd, staining my lips and tongue fully brown as my saliva begins to soften her waste into a creamy mush. It remains intact though as she pushes a little harder, making me breathe faster, the digusting smell just filling both my nose and mouth. My eyes are soon watering and I'm forced to hold down my gag reflex as six inches of shit are pushed into my mouth, eight, almost ten inches before her sphincter closes around the other end and cuts it off. Felicia watches me over her shoulder with the end of her log sticking out of my mouth. "Look at you, my bro the scat-raptor." She purrs with lust as her paw reaches back to caress along my cheek, I finish pulling her shit into my mouth completely so my tongue can slide out and give her paw a slimy brown lick. 

I suck on the feces deep and hard, pulling all the nasty, slimy liquid out of the waste and letting it swirl around with my spit before swallowing the nauseating mixture, the main creamy mass of shit still clogging around my teeth and tongue. I let her watch me tilting my head back, swallowing the turd ever so slowly, letting it just roll down my throat in a slow gulp. Swallowing it at last, I sigh with deepest satisfaction and grin widely up at her, my lips, teeth, tongue, all stained a filthy brown now. 
"Hey Felicia, I think I've got something in my teeth." I say, pointing at my mouth. 
"Oh yeah," she says. "Here, let me get it." She grins back and turns around to face me again, bending forward at the waist. I lean up to meet her in a deep and horny kiss, sharing the tightest of all sibling bonds as I kiss my sister with my filthy maw - letting my soiled tongue slide right into her muzzle to play with her own, my brown spit flowing between her lips, making sure she gets a good taste of her own filthy scat.

Pulling back with a string of saliva still connecting our lips, she closes her eyes as another loud fart erupts into the air; it always made me question my masculinity when my sis managed to blast out those thunderous rippers. 
"Mmf, feels like there's still another one up there," she grins down at me. My paws reach in around her and grab her hips, spinning her around to land with her ass firmly on my lap as I lean back on my throne. 
"Need help getting it out?" I grin and ask her, planting another dirty kiss on her neck, my teeth nipping the sensitive scales. 
"See if you can loosen it up for me hun." She purrs as my achingly stiff cock slides into the dirty crack of her rump, throbbing like mad as it smeared precum under her tail. 

"No need to act sly, I know you're just a big whore for sloppy anal sex." I grin at her as I feel the warm, sticky remnants of her shit starting to coat my cockhead as it rubs against her pucker. Gripping those big, muscled raptor rumpcheeks in my paws, I knead them apart and hump a few times into the messy crack of my sister's soiled ass - hissing out in pleasure at feeling her anal ring stretching open to engulf my cock into that deliciously tight warmth. I've always said that shit is the perfect natural lube, and it never felt better than fresh in my sister's hole, hearing it squish softly as my penis slide into her filthy rectum. She was really moaning and gasping, having just stretched herself around a monstrous log of shit now to have her back door invaded in reverse with her brother's well-endowed cock. Eager to start drilling for the rest of her scat, I push into her none too gently, holding her down while my cock fills up her anal canal. About half way in, my cockhead suddenly encounters resistance, the familiar warmth of a log blocking my path. 

"See, that's what you get for hogging down all the pizza, fatty!" I grin at her and roughly thrust my shaft full into that shit, bottoming out in her rump, giving her my entire cock and making her taihole clench just above my balls. 
"H-hey! Unngh! Be nice.." She whines at me as I begin to rock my hips, dragging just a couples inches of my cock in and out of her deeply hidden waste. 
"Just saying, you're the one needing the plumber back here." The already reeking scent of raptor scat grows only stronger as the liquid pressure of my meat churning into all that nasty dung can be heard. I just lean back on the toilet, spreading my legs out before my in deepest pleasure at the way Felicia's shit clings on to my rod.

My paws stroke along those pleasantly curved hips and thighs of hers to grab the back of her legs and pull them up, keeping her ass impaled around my throbbing dick as I bring her legs high into the air, up against her chest, feeling her asshole grow all the tighter. I really start to churn it up, my fat cock pumping into her anus straight up as I hold onto her squirmy, sweaty body. 
"Nnnnngh... fuck... I'm so full.." She pants out above my head as I sodomize her dirty little butt, smearing all that thick waste onto her walls, feeling the gritty texture covering my dick completely. Panting hotly on her neck, I slam my cock into her over and over, spreading my legs out and curling my toes in enjoyment of getting to roughly handle my sister and make her my anal slut.

Every minute or two, I can feel her tailhole clench and then hear a wet, bubbling fart as gas is released around the pressure of my cock, sending drops of liquid shit splattering onto my balls. Mostly I hear the wet, hard slap of my cock driving into her, moaning and panting as my paws knead and grip her cheeks to just add to the agonized pressure of her fully packed rump. Her tits are bouncing wildly as I merciless fuck her filthy tailhole, my paws exploring her body however I please. My sister's moaning, gasping form pressed so tight against me, the smell of freshly fucked raptor scat thick in the air is quickly leading to my climax as I open my jaws and bite at Felicia's shoulder, riding the waves of carnal ecstasy as my instincts take over. I can tell her own paw is rubbing furiously at her cunt, knowing she's every bit as horny as me, feeling the delicious muscular contractions rippling through her ass... making me gasp as her paw suddenly grasps my balls, giving them a good squeeze with her taloned paw, still dripping with the juices flowing thickly out of her pussy.

The pressure in my cock is incredible as it erupts into my sis's packed asshole, I spear my cock into her shit as deep as I can force it, my claws pulling her roughly back into my crotch as I pound her senseless. Feeling my cum exploding into the waste trying to escape her colon, flooding into the thick brown mass to make for one slimy load around my raptorhood is mind blowingly hot, making me whine and gasp for air, hammering my cock into her as thick brown globs of feces plop out of her hole with the high pressure of my seed flooding her back door. Her sphincter is clenching and gripping in resistance, keeping a constant pressure of oncoming shit flowing around my cock. 

My claws rake along Felicia's hips and ass as she struggles widely, howling every bit as loud as she cums with a thick surge of hot femme nectar spurting out of her cunny in an arc that splatters the bathroom floor. I can feel every powerful clench of her tailvent gripping onto my cock, milking out every drop of cum I have to give, an absolutely massive load pumped into my sister's bowels. My head still reeling, I weakly lean back against the toilet, my arms securely holding onto Felicia's panting chest and tummy. "Ggh..." She groans weakly, her toes still curled as her tensed body finally relaxes. "Fuck, Kale.. how much did you cum in there... feels like a gallon of cum plugging my ass." Her words bring a wider grin to my lips, licking them as my cock gives a little throb as I imagine the unspeakably filthy contents of my sister's rump. 
"Let's say we find out, hmm? You must be so loose by now. Just how you like it, right?" She tries to playfully smack me, but I'm able to dodge back out of the way while keeping her perfect ass planted on my now-reeking, soiled crotch. 
"Fine, you nasty shit-fucker," she says, pushing her feet onto the ground. 

I tense eagerly with anticipation as I sit back on the toilet seat, making an accessible space between my legs. Felicia carefully starts to lift herself off my cock with a little groan of pleasure, and I can feel just how loose and stretched her hole is. I watch with delight as my cock is revealed, coated in a thick brown sludge, delightfully warm and slimy as it drips into my sheath and on my balls. I watch her asshole reach my tip, knowing the immense pressure that's contained just inside. With a wet, slimy pop, she finally pulls off, though her anus remains open every bit as wide. Instantly, a huge flood of the most putrid, reeking filth floods out of her used hole, the raw sewage I had just churned and plundered into a thick cream, the sludge made further into a viscous diarrhea with the liters of cum I had pumped into it. The smell makes even me choke and gag, engulfing the entire room in that putrid scent; that doesn't stop me from breathing it in deep though, loving the powerful mix of aromas flavoring her waste. Felicia is really groaning with the pure relief of letting go such a massive load, splattering the nastiest kinds of farts all over my lap as wet chunks of turd ooze down my cock and balls.

"Mmmff.. holy fuck that's hot, Felicia.. keep it coming.." I purr to her as she rocks her butt in raptory pleasure, letting me know how good it feels to drop the steaming pile of sludge. It splatters onto the toilet seat to splash onto my balls as I let it plop into the toilet between my legs. Guiding her ass to sit just in front of my lap, the sick splattering, bubbling of her squirting liquid farts can be heard from all my cum clinging on the walls of her colon, now shooting into the waters of the toilet. I reach my hand down into the bowl and scoop it through the putred raptor dung turning the water into foul brown sewage, bringing it back up to my cock and shamelessly jerking myself. Finally hearing the last fart of cum squeaking out of her hole, Felicia relaxes against me once more, purring in exhausted bliss. I let my filthy, soiled paws hug her chest and leave shitty paw prints all over her wonderful tits, rubbing the slimy filth on her nipples as she smiles and coos in my arms. 

"And by the way," I whisper into her ear, "I never did get to finish my morning piss." Just as the words leave my lips, my bladder as already relaxed as a warm stream of urine forcefully pumps out of my semi-flaccid cock. Still full from the night before, I let the stream flow fully into the shit-smeared cleft of my sister's rump, washing through all the waste still clinging on her scales.
"Mm, good," she says with a grin. "I did need a nice shower after all that." I grind my hips against her cute bottom, letting my hot piss flow out under her tail, rocking my hips so the it flows back down into the still loose and gaping entrance of her asshole. I was content to just rinse her off, but I can feel her body shifting above me as he paw reaches between her legs to grab my warm, slimy, pissing member. Making me gasp at the post orgasm sensitivity, she whispers, "I've got a much better pisshole for you..." Suddenly my cockhead is engulfed in a sweet warmth as her paw guides my tip up to her pussy, sitting back on my lap and letting my pulsing shaft slip right into her. Immediately my urine begins to fill her cunt, making me moan and quiver with lust at defiling my sister's own snatch.

My grip tightens around her as my cock throbs to full stiffness once again, as my hips quickly begin grinding upwards to bury my length deep into her - all that pee filling her cunt rapidly, only to flood back out in a dripping fountain onto my crotch. I let my body go with the flow, as it were, grrowling lustfully and starting to gyrate my hips to give her a good fucking. The wet, slopping sound of humping up into her piss-filled femme was really turning me on again, and I could tell by Felicia's eager moaning she was just as horny. Emptying took well over a minute by which I was jackhammering into her musky snatch, now filled with my scent. It didn't take long with my paws gripping her shit-smeared hips and slamming our crotches together for me to cum again, humping into her over and over with the two of us squirming on the crapper.

My cum quickly started spilling from her overfilled cunt as I gave her a second worthy load of raptor spunk, keeping my cock planted deep inside to share a most intimate moment with my sister, my heart racing in this passionate moment. Leaving me weak and panting, only feeling strong enough to give Felicia's cheek an affectionate little lick. Just as I was sighing peacefully, a sudden knock on the door interrupted my tranquil afterglow. My sister jumped and gasped in surprise, slamming down onto my balls and making me groan in pain. Our mother's voice called from outside the bathroom door. "It's nice that you two can share the bathroom, but come on, breakfast is ready!" Looking up at Felicia I couldn't help but snerk loudly as she giggled back. 
"Be right out, mom!" We both say, and I give her ass a smack for good measure as she pulls off me, leaving my crotch still covered in both our cum and waste. 

In fact, my entire body seems to be covered in the nastiest kinds of stinking, slimy things as I grin helplessly at my sister, almost equally covered in reeking bodily products. In unison, I find us grinning at the open shower as  I hop forward to get the water flowing. Surely five more minutes won't hurt.