Family fun
Sibling’s Experiment
By Surki

Sasha
Age:  13
Species:  Wolf
Gender:  Female
Appearance:  Sasha is a young female wolf cub. Most of her fur is brown, with lighter brown covering her belly, underside of both her paw hands and feet, along with the inside of her ears. Black fur covering her nose, as well as the rest of her paw hands stopping just before the wrist. Her feet also covered in black before blending into the brown starting at the ankles. Her A cup breasts aren’t large, but are still nice for her size. She keeps her fur well groomed; even in the area’s that only she gets to see. Her fluffy Tail extends out behind her about 2 feet with a bright red bow clasped on the end. Sasha slender body stands right around 4 and a half feet tall from foot paw to ear tip. Her pure blue eyes seem to stand out brilliantly from the brown fur covering most of her face.

Brent
Age:  15
Species:  Wolf
Gender:  Male
Appearance:  Brent is almost 6 foot tall from foot paw to ear tip, with a large 4 foot long tail coming out of his backside. His body completely covered with charcoal black fur. He does have some brown fur, but it’s so dispersed that you can’t tell unless you’re up close, and actually looking for it. His eyes are multi-colored, one green and one blue, both easily standing out of the sea of black fur covering his face. His body also kept well groomed to show off his toned arms. Brent actively works out to keep in shape, keeping him not overly buff, but enough to be noticed. He enjoys showing off everything from his muscular arms, to his sculpted chest, down to his firm six pack abs whenever he gets the chance to. Usually wearing shorts to show off his muscular legs as well

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	It was a normal day in the Kauffman house hold. Sasha was in her room brushing through her fur like she does every day at around this time, Brent usually staying in his rooms probably playing video games. Their father at work for most of the day while their mother ran errands around town. Leaving the siblings at home alone.

	As Sasha finished brushing over the fur on her tail she looked around for her favorite bow. “Dangit, where did that thing go now?” She said as she looked around the top of her vanity before getting up to look elsewhere in her room. After searching for what seemed like forever to her, and frustrating her to no end she came to a stop as a thought hit her. “I bet Brent took it again” Quickly turning and heading out of her room. Turning the corner and going to the end of the hall straight towards her brothers room.

	She had planned to just bust into the room and demand that he give her bow back, but came to a stop as she grabbed the handle. Her ears twitching as she heard weird noises coming from the other side. Having trouble placing what the sounds were she slowly and quietly opened the door to peek inside. Covering her maw as she saw her brother laying on his bed, his paw hand wrapped around his length and stroking himself vigorously. Remaining quiet and seeing his eyes shut she slowly slipped into the room, not shutting the door so he wouldn’t notice.

	Sasha watches curiously as her brother masturbated in-front of her. Brent breathed heavily and moaned lightly as he continued to stroke himself, from time to time saying someone’s name too softly for Sasha to hear. Sasha watched as his breathing started picking up, moving his free paw down to massage his balls a little before moaning a little louder. Gripping at the base of his length as his back arched, thick white strands shooting out over his body all the way up to his chest and nearly hitting his face. Brent holds himself for a while as rope after rope of white shoot out onto him before relaxing and panting heavily.

	As Brent started to reach for something to clean himself with he stopped as he heard his bedroom door shut. Quickly looking over to see his sister standing at the door watching. “h-how long have you been there?” He asked. Sasha just stood looking at him for a moment “What was that white stuff?” Having an idea of what it was, but couldn’t be sure. The older wolf tried to hide himself from her view, but does a poor job of it “Don’t you ever nock?”. “I was going to, but then I heard you making weird sounds so I took a peek” She tells him as she starts to walk over to his bed, getting a better view of the white goo on his chest and belly. Then sniffs the air and blinks “And what is that smell?” Not realizing it was his musk as she got closer.

	Brent holds his paw out towards her “Stay over there… actually better yet, you should probably leave.” His sister shook her head at him as she stood next to his bed, feeling odd the more she smelled the strong musk of her brother “Tell me or I’m going to tell mom and dad what you were doing!” He sighs knowing when he is beat “Ok, I was…” blushing a bit under his fur as his ears fell back a little “It’s called masturbating, just don’t tell mom or dad. I don’t want to have to do the talk with them.” Sasha nods as she continues to look at the white on him, a finger reaching out and touching some of it “It feels slimy.”

	The older wolf suddenly gets an idea and wonders if it would work “It tastes good to”. Suddenly thinking how stupid it was to even attempt that line, but is shocked as she brings the finger up to her muzzle and gives it a lick. “You’re right, it isn’t bad” dipping her finger back into some of the goo to lick more off. “You can lick it off if you want” He says as he wonders how far he can get her to go. Sasha hesitates for a little bit before leaning down and licking up a little of the cream, getting more of it then what she could on her finger. The larger amount spurring her on to lick up more of the tasty goop as she cleans his chest. The larger wolf smiles and gently pets over her head “And to answer your question, it’s call cum.”

	Sasha finishes cleaning his chest and moves lower, getting it all off his belly as well before coming to a stop right above his crotch. Seeing the swollen cock in-front of her bringing her to a stop. Her tongue still against his belly as she inhales his heavy musk and fidgets a little. “Don’t be scared, it won’t hurt you, and” hesitating for only a moment “It could use some cleaning to.” Hoping to god she goes for it. Brent closes his eyes and waits for her to get mad and leave as another surprise hits him, forcing a light moan from him as her tongue glides over the tip of his length.

	She closes her eyes as she finishes cleaning his lower belly and part of his crotch before licking more on his length, enjoying the salty taste and the strong scent coming off his hard red cock. “Even your penis tastes good brother.” Being called brother as she licks over his swollen rod making him shiver “Try putting it in your mouth sis.” “ok” as she moves and slips the tip into her muzzle, pushing in about half of it and murrs around him, liking the taste even more. “oohh…” starting to breath heavier “Suck a little and move back and forth.” His younger sister starting to do as instructed, getting even more moans out of him as he places a paw on top of her head.
	Starts the thrust a little into the warm muzzle, small grunts mixed in with moans of pleasure as she suckles on his sensitive organ “K-keep going, I’m about to cum.” Wondering what he ment by that she starts to pull off, only to be met with pressure from his paw holding her on his cock. After some fighting to pull off, only making her move back and forth on his shaft even more. He grabs her head with both paws and starts thrusting quicker into her muzzle. Moaning loudly as he keeps himself from thrusting totally into the delightful maw, shooting his hot load out onto his sister’s tongue. Sasha wiggled a bit trying to get free till she tasted the salty seed flooding her muzzle, making her relax as she brings her paws up to hold onto the cock. Trying to suckle everything out as she gulps down the tasty treat.

	After a while she finally pulls off of him, looking back up to him with a smile “It was warm that time.” The words making her brother chuckle a little “Well, it comes out warm. If you want I could make you feel good to.” He tells her, figuring they have gone that far. The least he can do is return the favor. She stands and nods a little “But how? I don’t have one of those.” Pointing to his length. “Just take off your panties and lay on your back.” Doing as her brother instructs, she reaches under her skirt and removes the thin cloth. Brent smiles as he notices the wet underwear as she removes them. Moving off the bed to allow her to lay down.

	“Now, spread your legs sis” Placing his paws on her knees and gently pushing them apart as he moves between them. Lifting her thin skirt and getting a good look at her virgin cunny, a smile forms on his muzzle as he smells her wet folds. “You ready sis?” looking up at her as she watches him, giving a little nod. Brent wastes no time in leaning in and giving a firm lick over her slit, eliciting a shudder along with a delightful moan from her.

	A pair of paws come to rest on top of Brent’s head as he starts to work his tongue over his sisters slit. Suckling from time to time on her clit making her moan even more. “T-that feels so good brother.” Her words making him smile and work even harder as he starts to press two fingers into her hot hole. Feeling her paws clench onto his head as he drives the fingers deeper into her, wiggling them around inside of her as he starts to move them in and out. “mmm, you taste and smell great sis. And your moans are so cute.” Chuckling a little as he suckles heavily on her clit, slipping a third finger into her. After a while managing a fourth.

	Before long Sasha is moaning loudly and holding her brother against her crotch “I-I feel weird brother.” He looks up at her, his fingers working vigorously in and out of her young pussy “You are about to cum, don’t fight it, let it happen.” Grinning as he takes his fingers out, replacing them with his long tongue and licking around as deep as he can get into her. His fingers moving to rub and lightly pinch her clit. All the stimulation finally pushing her over as her back arches, and she cums hard into her brothers muzzle. Covering his tongue with her juices as he laps as much as he can up.

	Brent cleans his sister with his tongue, loving the taste of her with each lick. Still making her moan lightly as she recovers from her first orgasm. “wow.. t-that felt so good, do it again!”. He smiles at her as he stands up. “I know how we can both feel like that.” She looks at him curiously. “But you should take your clothes off.” She slowly sits up and slides off the bed so she can remove her clothes as he sits and watches. Finally letting the last bit of cloth fall to the floor she looks back at him “Now what?” He grins at her “Wow, I didn’t realize just how sexy you are. Come over her and I’ll show you.”

	Sasha moves to in front of her brother , wiggling a little as he picks her up and sits her over his lap. Letting his sister straddle him and smiling as he feels his cock press against her crotch “Now, I know that you know what’s is going on. Playing innocent has been cute, but I don’t want to do this if you think you’re not ready.” She looks at her brother and smiles “It’s been fun, but I don’t want to stop. I’m enjoying all of it.” Leans against her brother “Even the feel of your penis against me.” Looking up into his eyes with a little concern. “Will it hurt?” He kisses her forhead gently and smiles “At first it will, but give it a little bit and it will start to feel good. Are you sure you want to do this?” She nods at her brothers quest “I’m sure”

	Brent smiles and moves, gently laying her onto her back as he lines himself up with her cunny. “If you want to stop just tell me.” He says right before he starts pushing into her. Getting his tip in and gently, slowly pushes deeper in. Trying to be careful not to hurt her to much as she clenches her paws and eyes, gritting her teeth and letting out a hiss as she is stretched around his cock for the first time. “K-keep going… I-I’m ok” hold back a yell as he finally bottums out inside of her tight hole and coming to a stop. A small tear forming and running down the side of her head as she feels him wrap his arms around her and hold her. “Let me know when it doesn’t hurt anymore.” She nods as she bites into his shoulder a little.

	After a few moments she moves back and smiles a little “I’m ready for more”. He smiles and nods, starting to move slowly back before pushing back into her. Feeling her quickly bite down onto his shoulder again as he pushes in. Keeping his slow pace for a while letting her get use to the motion of him, her hisses and grunts of pain subsiding and turning into moans and whimpers as he pushes in then moves out. Before long he hears nothing but soft moans, picking up the pace making her moan even more “Sis, y-you’re so tight, it feels.. so good”. She moans out in delight, moving back some as he continues to move back and forth “B-brother… s-stop for a moment.” Her words bringing him to a full stop inside of her, panting as he looks at her “W-what?” She smiles softly at him “C-can I be ontop?”

	He grins and nods, pulling out of her and laying down onto his back letting her straddle his hips. Wanting his cock back in her quickly, she hurries  to line him back up and push herself down onto him, moaning out loudly as she pushes every inch into her till she feels his growing knot press against her. He places his paws on her hips and starts to buck up into her as she rides up and down on his cock. The both of them moaning in blissful pleasure as they enjoy each other touch.

	Starts thrusting up into her harder, his knot seeming to get a bit bigger each time her bucks up into her “I-I’m going to tie with… with you sis.” Not really knowing what he ment she just nods, loving every inch that plunges into her “I-I’m feeling weird again brother”. Both Wolf’s panting heavily as he holds onto her hips and roughly slams himself into her. Making her yell out loudly as he tries to force his knot into her tight cunt. Before she can tell him to stop he slams back up into her, pressing her hips down and finally shoving the fat knot into her, making her scream out as the pain from his knot mixes with the pleasure coming from the rest of his cock. Her cunny getting tighter around his maleness as she orgasms for the second time. Her tight pussy being to much for him to handle as he starts to cum. Quickly pulling her down into a deep kiss as he shoots his load out deep within her tight confines. 

	They lay on the bed, cumming together for what seemed like forever to them. The kiss finally breaking, letting her just rest on top of him and enjoy the afterglow of their efforts. “Wow.. t-that was amazing brother, but why did it hurt so much at the end?” He gently strokes over her head, kissing a little aswell “I’m sorry sis.. that was my knot. We are stuck here for a little bit.” She lets out a content sigh and licks his chest “I’m fine with that brother.” Looking up at him and giving a soft kiss to his lips “love you brother.” He smiles and kisses back tenderly “Love you to sis”

	After a moment longer they hear “Aahum. When you two are done meet me in the living room.” Quickly they both look at the door and see their father standing with the door wide open. Sasha nowing she did something she probably wasn’t suppose to, but not really grasping the gravity of the situation. Brent on the other hand instantly flattens his ears, knowing he is going to be in deep shit once he was in the living room.

To Be Continued.