~~~ Matt, aged 9. Kain, aged 13.~~~

	“Higher, Kain! Higher!” I yelled to my older brother, who pushed me on the swing. “I want to touch the sky! I want to fly!” The little wings on my back strained to get lift as the swing came to it’s precipice at the peak of it’s travel.
	“It’s no use, ‘lil guy. You’re not old enough.” Kain shouted to me over the wind. He stopped pushing me, letting my momentum slow down enough for me to jump off. I reveled in those two and a half seconds in the air. I spread my wings to their full 6 foot wingspan, just to feel the wind through my feathers. Moments later I landed on my bare footpaws, and turned to my brother.
	“I can’t wait until my wings are as big as yours!” I said with a smile on my muzzle. Kain smiled back at me. He put his paw on my shoulder.
	“Be patient, Matt. You’ll get your wings before long.” The look in my brothers eyes reassured me. “Patience is key to a good life.”
 I look back at my body, letting his words sink in before moving my body forward and hugged Kain around the waist. His words ring true in my ears.
“I love you, big brother...”
	“I love you too, little brother.”
“Don’t ever change...”
“I won’t lil’ bro. You’re always safe with me.”

~~~~~~~~~~~~~~~~Three years later~~~~~~~~~~~~~~~

	Me and Kain lay together on the couch at home, under a blanket. A scary movie plays on the screen, and our parents sit near, on a loveseat. I guess you could say we were having a cuddly movie night. Just a family of winged wolves enjoying blood and gore together. What could be more normal? Anyway, Kain lays behind me in a sort of spooning position. His arm lays over my side. Normally we don’t lay together like this, but Kain knows that I don’t like scary movies that much. So he comforts me, and I appreciate it. When a really scary part comes on, he can feel my heart beat faster, and in response he holds me a little closer until I calm down, sometimes stroking my tummy fur. It’s so comfortable laying against Kain’s warm chest. Before long I lose track of the movie and fall asleep in my brothers arms.
	
~~~

	It’s four hours later. Well past midnight. The TV is off. The living room is dark, and silent, except for my brother’s breathing. I can feel him moving against me in a way, entirely new to me. He grinds his crotch against my butt. I can feel his large sheath pressing into my crack. I try to squirm free, but he’s got both arms wrapped tight around me. I can feel his hot breath on the back of my head.
	“K-Kain?” I say. He doesn’t respond. In fact, he doesn’t stop. He keeps grinding his large sheath into the sleep pants covering my fuzzy bottom. I can actually feel his thick member growing. I turn my head around, to see that his eyes are closed. He must be asleep... It must be quite a dream too... I’d be lying if I said I didn’t like the sensation of my brother’s member rubbing against my backside, or the heat radiating from his body, or the musk that wafts up from under the small blanket that covers us.
“Kain?” I say again. I dig my claws into his arm. That does the trick. He hugs me tighter, and presses his crotch against me, while sleepily nuzzling the back of my neck.
“Mmmn... Matt...”
“Kain...” I hug his arm. After another second, while my brother slowly realizes where he is, and what he’s pressing against me, he quickly draws away from me.
“Matt... I... I’m so sorry...” He says. I turn around to face him. I can feel a blush on my cheeks. I reach my paw forward, and touch my brother’s chest. While he was rubbing his crotch against me... That woke something up in me. Something that wants more. Don’t get me wrong. I know what sex is. I pawed for the first time when I was ten. But it was never a big deal. I looked at porn, and I pawed. Grant it... It wasn’t normal porn, with girls. It was porn with two boys. That’s the stuff that made my penis grow in it’s sheath. I’ve always wondered since then what it’d feel like. Now... I get the chance...
“Kain...” I press my muzzle into his chest. “Can... Can you do that again?”
“Bu-... Wha-... Matt... You’re...”
“It felt good... Please Kain.”
“I... Oh, brother...” Kain wraps his arms around my small body. I nuzzle his large furry chest. Kain’s paws start rubbing my back, and slowly rub lower to the base of my tail. He holds me close to his body, so his still growing member presses into my own crotch, and even the lower part of my belly. It feels so large and heavy compared to what I’m used to. I can’t help but to murr at the feeling.
Soon, his paw reaches under the waistband of my undies, directly under my tail. My sensitive hole flexes as one of his fingers rubs against it. Teasing it. It draws a small moan from my lips. His other paw grabs my furry butt, and pulls the cheeks apart before letting go again. All the while, he grinds his crotch against mine. My furhood slips from it’s sheath, still inside the sleep pants.
“Nnn... Kain...”
“Shh... I’m going to make you feel good, lil’ bro.” 
I nuzzle his chest, and look up at him. “I trust you, brother.”
Suddenly, I feel his lips press against mine in a tender kiss. His tongue presses gently against my lips, almost as if Kain was asking permission to enter my muzzle. I grant it. Slowly opening my muzzle up for him. His tongue slides past mine, as we invade each other’s muzzles. All the while, he teases my body with his paws. They slide up my sensitive sides, and down my sensitive chest, electing murrs of pleasure from me.
The kiss lasts for all of a few seconds. He breaks it, only to lick my muzzle.
“Go to my room, lil’ bro. And get comfortable. I’ll be there in a bit.”
“O-okay.” I say, a little flustered. Kain lets go of me, and I make my way to my brother’s room. He’s never allowed me in there before. I’ve only seen glimpses of it. The room is pretty dark, but it’s still lit up with soft red light coming from the corners of the room. I crawl onto Kain’s large, soft bed. It smells faintly of my brother’s musk, which makes me blush, and feel hot. I look to the door, before slipping my pants and undies off in one go. They drop on the floor, along with my shirt, that I take off next. I sit on Kain’s bed cross legged and wait. My small furry sheath is visible. The tip of my pink furhood pokes out of the sheath.
My brother joins me a few minutes later. He carries a bottle of something... I can’t see what it is.
“Are you sure you want this, Matt?”
I nod. “Yes...”
“Then lets get you ready.” He gets closer to me. “‘Cause you’re not going to be able to take me without some practice.”
I nod again in response. He kneels in front of me, before pushing me on my back and spreading my legs apart. I feel so exposed but at the same time safe because I trust my brother. My fuzzy sheath and balls present themselves to him in their full glory. Just underneath hides my pink, unused tailhole. 
Murring to myself, I close my eyes. My brother keeps one paw on my belly, rubbing me tenderly. I start to wonder what he’s gunna do, until I feel a cold, wet nose press into my fluffy ball sack, and a warm, wet tongue brush against my tailhole. The sensation sends shivers up my spine. Who knew a tailhole could feel that good...
After several minutes of sensitive licking to my tailhole, and many murrs of pleasure, Kain moves his muzzle away, and replaces it with one of his fingers, coated in lube. It feels cold against my sensitive pucker which reacts by contracting.
“Take a deep breath, and relax your body for me, Matt.”
I do what he says. Moments later his finger penetrates my virgin hole. I gasp from the feeling. This is the first time I’ve ever had something go IN that hole. It doesn’t hurt... On the contrary, it feels... Nice. His finger slides in all the way. Just having it in there feels nice. But then he starts wiggling it inside. My leg twitches as a weird, electric sensation flows through my body. It feels like his finger is rubbing a sweet spot in me, that flows through my body, but focuses more on my furhood. It feels so good. My furhood grows to it’s full 5 inches in no time. It almost feels like....
“B-brother! D-don’t! I’m g-gunna pee...”
“No you aren’t. Just breath deep and let it happen.”
He presses a second finger in me. Then another. Each time rubbing my tummy, and telling me to relax. It’s the third finger I have trouble with. It draws a faint whimper from my muzzle. It hurts, going past my anal ring. Yet at the same time, it feels like heaven. The electric sensation only grows within me.
“Shh... This next part will hurt, Matt. Are you sure you want this?” 
All I can do is nod, slowly. I want him inside of me. I want to feel it go deeper than his fingers. I wanna feel it throb! And I will. Kain positions himself in front of me, resting his large cock on my tummy... It IS large. It’s huge! A full 12 inches, at least. With a thickness to match. His knot hasn’t begun to grow yet, and pre spills from the tip onto my tummy. The weight of it is something entirely new to me. It’s so different than mine... It feels so alive. So heavy.
And now, it’s sliding down my tummy. Over my crotch. Finally resting against my lubed and stretched pucker. I can feel the very tip of his tapered cockhead push into me, slowly spreading me open until finally... The head of his cock pops in. It makes me gasp, and squirm in a mixture of pain and pleasure. Kain presses my chest with his paw, pushing me into the bed, and keeping me still. The power of him pushing on my chest is... surprising. Dominating. I almost feel controlled, and... And I think I like it.
“Keep still little bud. You asked for it. There’s no going back now.”
Something in those words strike fear in my heart. Like he won’t stop if I ask him. But I don’t have time to speculate. He starts pushing his lubed shaft deeper into me. It feels thicker and thicker as he goes deeper. Until it’s half in, and he hits something in me... A wall. He can’t go any further, and it almost hurts. Almost. All the while, my tailhole sears in pain. But then he stops pushing into me. He completely stops. 
I find my eyes closed, and my muzzle turned from him as I try to cope with all the new feelings. Until, that is... Kain moves my muzzle to face him, and presses his lips against mine. His tongue invading my mouth for the second time. It’s almost enough to make me forget about the pain. Our lips stay locked for what seems like several minutes. He doesn’t move his hips at all while we kiss. 
Then he breaks the kiss, and pushes me against the bed again. He leans over me, and nips at my neck, slowly rocking his hips back and forth. I can feel his cock inside me... It feels like he’s spreading open a second tailhole... And it feels amazing. I feel so full inside. Breathing heavily, I open my eyes and look down. My tummy has a big bulge in it, caused by my very own brother. I run my paw over it.
“K-Kain... A-are you all the way?” As I say this, he pushes himself deeper inside me, which forces a moan from my muzzle. I can feel his slightly formed knot trying to spread my hole open even more.
“Almost, Matt. Almost.”
With that, he thrusts his hips forward, rather violently. I moan loudly, to which he covers my muzzle with his paw to shush me. His partially formed knot pops in. We’re both panting.
“Now the real fun begins... But you gotta be quiet.” 
Kain reaches off somewhere where I can’t see, and moments later pushes a piece of cloth into my muzzle. But not just any piece of cloth. It’s a pair of his underwear. I can taste and smell his musk, and it makes me so... hot. A blush grows on my muzzle. I’m too distracted to notice Kain wrapping a belt around my head until it’s already done. His makeshift gag now firmly in place. Anything I say comes out muffled... Not that I want to say anything right now. Not with that lovely musk in my mouth.
Kain pushes me hard into the bed, and moments later he pulls his partially formed knot out of my ass, and draws out until just his tip is left in, before slamming himself in again. Knot and all. I moan into the gag. And he does this over, and over again. At first it hurts. Tears flow from my eyes. But he doesn’t stop. And soon it feels good again. The electric feeling inside of me starts returning, with a renewed intensity.
Several minutes go by as he impales me with his cock over and over again. I can start feeling a pressure build up in me. Like I hafta pee again. But I know it’s not pee. Not this time. I grip the sheets with my paws, bracing for it. My muzzle tilting up, my back arching. And then... Kain pulls out. The sensation dies down. My cock drips pre on my belly, throbbing in the air. I pant, looking at him with a questioning gaze, unable to speak.
“Not yet little brother. I’m not done with you.” Kain stands above me with his large, cock throbbing. He leans in close to my ear. “Do you wanna cum?” 
I nod my head. I need it. I crave it. I must cum!
“Then you have to agree to do everything I say... You will be my pet. You will be my play thing. I’ll use you in any way I want.” He nips my ear. “And in return... I’ll let you cum. Not just now... but later too. As a reward for being a good puppy. Are you a good puppy?”
My heart races. It’s scary, and thrilling at the same time... To be used. To be my brother’s puppy. To make him feel good. I want it... So I nod again. He smiles.
“Good. Now... Roll over.” He commands. I do as he says, rolling to my tummy. Moments later he puts my paws in handcuffs. He makes me get on my knees, and then he puts a bar between my legs, attached by leather cuffs, so I can’t keep my legs close together. My body still screams for release. After this, he slides something on my furhood. I look down to find it’s... A cock ring, with vibrators. But they’re not on. It looks like Kain has a remote.
“Be a good puppy and lift your tail.” I do as he says. I’m so willing to. He pushes his cock into me again. Hilting so our balls touch. His being a fair amount larger than mine. Then he continues his pounding. In and out, in and out. His partially formed knot causing most of the pleasure for me.
I can’t move, and I can’t talk. He presses my head into the pillow, and fucks my newly claimed tailhole with all he’s got. The electric feeling returns, as well as the feeling of needing to pee. No matter how much he pounds into me, it never comes though. But I can feel his thrusts getting wilder. Harder. Less consistent. It’s almost enough to put me over the edge.
“I’m cumming little puppy. And so are you.” He pants into my ear. I feel the cock ring start vibrating, and what happens next... Words can’t describe. But I’ll try. It felt as though we were in tune with each other. After he slams home, his knot expands to twice the width of his cock. In that instant... We both cum violently. I moan into his musky underwear. He bites my neck, moaning into the fur. I won’t find out until later that he drew blood. But that doesn’t matter. All I can feel is the pressure in my tummy, and his giant knot just inside my tailhole keeping us locked together. It’s too much for me. Before I’m done cumming, my vision goes black, and I pass out.

~~~

	I wake up 15 minutes later. The pressure inside me is still great, and I my vision is still blurry. It’s a few more minutes before I can take in my surroundings. My paws have been uncuffed. The bar between my legs has been removed. The makeshift gag in my muzzle has been taken off... But the musky undies still rest on my nose. I’m on my side, with Kain behind me. Both of his arms are wrapped around me, holding me tightly. He’s stroking my fur, softly singing an old lullaby mum used to sing us before bed... I missed hearing those words. And now they’re being softly spoken into my ear by my big brother, while we’re so intimately tied. I turn my head, and nuzzle my brother. He nuzzles me back, and places a kiss on my nose.
	“Shh... Rest now, lil’ pup. You’re safe with me.”
	“I love you, big brother.”
	“I love you too, little brother.”
	His soft singing continues in my ear, making me drift back into sleep.
	“Hush little puppy, don’t you squirm. Brother’s gunna keep you safe and warm...”