It's a beautiful Friday morning at home. You wake to the gentle patter of autumn rain, a brisk wind rattling against your windows. Though the weather outside is gloomy, you happen to find it rather calming; as easy as it is to appreciate a nice, warm summer day, there is an allure to the simple rhythm of a rolling storm that is simply too good to be taken for granted. You appear to be alone in the bed, but this comes as no surprise to you. Your beloved has gone away for the weekend, leaving a vacant space on the mattress. Fortunately for you, that space has never been truly empty. Because, as it turns out, you aren't really alone. Shifting the blankets slightly, you reveal the sweet little angel hidden beneath. Sleeping where your lover once sat is now your treasured eight year-old son, Tails. The boy is dressed in nothing but his tight briefs, splayed out over the bed on his stomach. His young body rises and falls with each gentle breath, and you can hear a steady stream of air flowing in and out of his peaceful body. Tails got frightened during the storm last night, and you let him snuggle up with you in your bed. Regardless of how afraid he seemed to be before, the boy is sleeping like a baby now. It's the perfect opportunity to get closer to your son. At the very least, you can get a closer look at him. With a single, careful motion, you place your hand on Tails' butt, rubbing it slowly so as to not rouse him from his slumber. Fortunately, the boy doesn't stir. Your touch elicits no reaction - not yet. Here, you can admire the shape of your son's rear end - underneath those twin tails, he has a bit of a bubble butt, and it's quite round for a boy his age, which is something that has always caught your eye. You take advantage of the stillness by moving your hand further south. Carefully, you reach under his big, fluffy tails and grope him, giving his squishy little rear end a gentle squeeze. Still, Tails does not move. This doesn't surprise you - he's always been a heavy sleeper - but it certainly excites you. It’s quite easy to fondle your son while he’s asleep; this is something you’ve learned over time. Even so, you recognize that this guilty pleasure of yours is incredibly risky. You can grope the boy’s butt through his underwear all you want, but you won’t be satisfied until you can get a closer look, and even then his little sleeping body always leaves you hungry for more. Thus, you move gingerly to the kid’s waistband, feeling your way towards the line where the elastic clings to his soft little waist. Your fingers tremble slightly as your fingers grasp the very edge of his underwear, and though it’s tedious work, you begin to pull Tails’ briefs downward, inch by careful inch. Slowly, your labor bears fruit - that of bare fur and tender flesh. It’s a forbidden indulgence to expose your son like this, but no one bears witness to your sin; you are free to explore the young fox as you please, for now. You stop pulling just as the waistband clears your son’s asscheeks, leaving the briefs just beneath his tender rear in case you need to hastily pull them back up. The plump, fuzzy butt before you is too tantalizing to resist - the mere sight of it has your heart pounding, and the way it jiggles just slightly as Tails stirs makes you shudder. However, you have to curb your enthusiasm - a single errant touch is enough to wake the boy, and you aren’t entirely sure how he would react to being fondled like this by his own parent. With great care, you move your hand to your son’s ass, tracing the edge of his soft crack just to measure its shape. The soft inner flesh of his butt…you can feel it on your fingertips, and it’s warm. You get ahead of yourself, so enthralled by the adorable, underage body laid out before you that you pull - a bit too harshly - at your son’s asscheek, spreading his butt open so that you can get a good look at his young, tender anus. You shiver with excitement as you behold the soft pink ring - the tight, virgin entrance to Tails’ insides. You want so badly to get your fingers inside of him - to curl your digits inward, probing at the boy’s little prostate - but your wild, feverish hunger is interrupted suddenly by an unexpected movement. The boy is stirring - and dangerously so. Without hesitation, you snatch your hand away from Tails’ butt, staring wide-eyed at your son as you wait, with bated breath, for your son to stop moving. Fortunately, he doesn’t squirm for long. He never actually woke up - never noticed what you were doing to him. You breathe a deep sigh of relief. You were very nearly caught. Patience has served you well, it seems, as you reach back down to touch Tails’ pretty little ass. He doesn’t stir nearly as much the second time around - not even when you spread him open with your fingers. Here, you can finally have a good, long look at your son’s little pink tailhole. You have never managed to get a finger inside. You’re sure that you could - with enough lube, the boy’s butt could certainly stretch to accomodate one - but the act of lubing up your son’s underage butt tends to wake him up. There was at least one instance where you had to convince him that he had wet the bed, which served to explain why his briefs were so warm and wet. But, you know it’s too risky a thing to try again, so you decide against it. Instead, you bring your muzzle closer to the boy’s spread-open butt. The musky smell of Tails’ ass is unlike anything else you’ve ever experienced. He smells incredible for a boy his age, and you barely manage to keep yourself from burying yourself face first into the kid’s ass. Instead, you approach it slowly, keeping Tails’ butt spread slightly as you near the boy’s tender flesh. Your mouth touches the soft fur around his entrance, and for a moment, you stay there, testing your son’s sensitivity as you take in the musky scent. Two bushy yellow tails drape gently over your face, and you hold perfectly still, again waiting for some indication that you’ve woken him. Fortunately, after a few seconds, Tails is still asleep, leaving you free to continue. Each sharp huff fills your lungs with musk, and you grow hornier with each breath. You’re powerless to stop yourself from pressing a deep, affectionate kiss to Tails’ sensitive anus. It quivers slightly at your touch, and that only excites you more. You kiss his little hole again - and again - pressing kiss after loving kiss against the boy’s entrance, flicking your tongue hungrily against his butt each and every time. The exquisite warmth is matched only by the taste - your hunger mounts as you partake of Tails’ tight underage butt, slowly licking circles against the pink ring of his asshole. He quivers again - but you don’t care. Not enough to stop devouring him - to ruin this meal of young, warm flesh laid out before you. Spreading him wide open now with your fingers, your nose presses up against his asshole as your tongue ventures down, crossing his perineum to lap at his exposed balls. He quivers once again - his balls draw upward, shaking slightly at the stimulus. Time’s up. You have a small window to get him cleaned up before he awakens. You take the time to wipe your face first, cleaning your muzzle of any evidence of your heinous crime. Then, you reach down and gently wipe up your son’s butt, meticulously clearing your saliva off his bright yellow fur and exposed anus. You just barely manage to pull his underwear up over his butt before he finally starts to wake up. “Mmmgh…” You greet him fondly, and tell him good morning - as always. He smiles slightly hearing you say this. However, his smile fades when a bright flash of light illuminates the room for an instant. A mere two seconds later, a violent crash shakes the house. The storm is moving closer. Tails jumps in his seat, sitting upright and clinging the blanket to his chest. “S-startled me,” he whispers. “I’m not afraid of thunder, though.” You affirm his claim - he’s a big boy, after all, and he’s grown to be quite brave and self-sufficient all on his own. Be that as it may, however, you make sure to remind him that you’re his father; he doesn’t have to be brave around you. Hearing this, he softens, letting his big-boy facade fall away almost immediately. “C-can we snuggle?” You let Tails climb up into your lap, and he doesn’t seem to notice when your bulge presses tight against his crotch. He’s old enough to know better, but not old enough to understand - and he trusts you, as his parent, far too much to question something as minor as that. Besides, he feels safe in your lap - you can tell, too, judging by the way he places his hands on your chest, leaning his head against your warm bosom. You’ve raised him to be quite affectionate with you; he doesn’t mind being close to you, even at his age, and even in this state of undress. When you press an affectionate kiss to his soft, fuzzy cheek, he welcomes it - enough for him to turn his head and lean into you, allowing you to push your lips against his. You linger - perhaps a bit longer than you should - on those lips, gently exploring them with your mouth for a brief moment before pulling away. He is unfazed by it; you’ve taught him that it’s normal, after all. You harden slightly. He doesn’t notice; even as the bulge presses against his groin, twitching gently against the spot where his cock should be, your son simply looks at you warmly, a slight smile curling at his lips. You’re not sure if he can feel what’s going on down there, but if he does, he doesn’t seem to mind. Either way, you like having Tails on your lap, and you don’t intend to back down now, especially when he is as comfy as he is. “The lightning’s not so bad…” he whispers. “I’m not afraid…” You embrace him, squeezing him tight in your grasp. As he pulls closer to you, it’s now unmistakable that your hard-on is pressed against his crotch - and you feel something stirring in the boy’s briefs that suggests you aren’t the only one feeling aroused. A light twitch from under Tails’ underwear makes you wonder if perhaps he’s getting a little hard himself. There’s a chance you can make this moment work to your advantage. You ask him if he’s a big boy - if he’s tough enough to handle the lightning. “Yeah,” he answers proudly. “I can handle myself.” You ask him, coyly, if he is able to prove it. The boy folds his arms, grinning smugly. “I make gadgets on my own all the time!” But can he hold his own in a fight? Can Tails handle a little tussle? You ask him this, and before he can answer, you scoop him up and pin him to the bed. The boy erupts into a fit of giggles. “That tickles! Hey, stop it!” He seems accepting of the challenge, as the moment he wriggles from your grasp Tails leaps on top of you in an attempt to subdue you. His tails shake slightly in the air as he struggles to control you, but it’s no use; you easily get him onto his back again, spreading his legs wide as you surreptitiously press your erection against your son’s crotch. He struggles against you, snickering as he tries to squirm away; in spite of his precarious position, he doesn’t feel endangered in any way. He gets up on all four and tries to crawl away; all it takes is a tug on his ankle and he’s right back underneath you again - this time, on his stomach. You press down against him again, pushing your bulge tight against Tails’ butt. The only thing keeping your cock from touching him down there is the underwear you both wore to bed, but the sensation is still undeniable; you can feel the slight give of his ass against the tip of your cock, even through two layers of fabric. It seems that Tails can feel it too; you can hear him getting flustered already, tails twitching curiously as he tries to ignore the strange pressure pushing against his butt. His breathing is starting to become irregular. Maybe it’s the rush of wrestling with you, or maybe it’s the strange bulge in your underwear, but either way, Tails is breathing heavily. You press down - another push against Tails’ butt, and his tails quiver. By now, he’s definitely noticed what you’re doing, but he doesn’t make any move to stop you. Your bulge - now wet with precum - rubs tight against the boy’s tender hole, stopped only by his briefs. Sometimes, it glides downwards, pressing up against his package as it slips between his young thighs. “Mmmgh…What…whatcha doing?” ‘Wrestling’, is what you claim. You’re not sure if he’ll buy a lie like that, but it’s the best you can come up with in the heat of the moment. You tell him that you’ve got him pinned, and that he’ll be your little boy forever if he doesn’t manage to wriggle free. Much to your surprise, those words are enough to make Tails blush. He’s audibly flustered, tails waving here and there as he considers your words. “I-I don’t mind…” he murmurs. “I want to be with you…” Pressing your bulge tighter against his bum, you ask him if he’s a big boy. “I-I’m a big boy!” He assures you. “I’m not scared!” He trembles as he feels your cock press against his ass once again. “Mmmmgh…I can…feel that…” Your bulge twitches. Your cock aches to be let out - you want so badly to drill right into Tails’ underage butt, but you know it’s unwise to try something so brazen so soon. For now, you work with what you have. You’re careful not to startle or injure your son as you flip him onto his back. He doesn’t put up much of a fight, really; it makes it easy for you to spread his legs open and press your erection against his crotch. Initially, Tails finds his attention drawn to the massive bulge between your legs, but you distract him with a kiss, pressing your lips affectionately against his muzzle as you start to slowly grind against the kid’s package. Tails giggles slightly as you kiss him, amused by all the attention you’re giving him all of a sudden. However, with each gentle kiss you give him, his amusement begins to give way to another feeling entirely. He breathes hot, flustered air against your face as you grind on his little crotch. With every gentle stroke, he gets harder, and precum soaks the tip of his briefs - though that might just be yours. “I-is that your…” he whispers, “Your privates?” You dodge the question. Instead, you flip the boy onto his stomach again, and when you reach down to pull him up on his hands and knees, he doesn’t resist. You find it easy to grab Tails by the hips and push your bulge against his butt, grinding along the crack of his ass while separated from it by only a couple thin layers of fabric. Much to your delight, he responds positively to the sensation, and a grin forms on your face as you’re able to push his upper body down into the mattress with little resistance. All he does is moan and shiver, his tails waving from side to side but never getting in the way. With your son poised before you, ass high in the air, you see no reason to hold back. You grip hungrily at the boy’s hips as you begin to dry-hump him, pushing your bulge against the crack of his ass as though trying to fuck him through the fabric. The boy surges forward with each thrust, and you hear him whimper each time he moves back, feeling your erection push ever tighter against his young, virgin ass. In spite of his lack of understanding, Tails keeps his back nicely arched and his tails held high, not wanting to interrupt whatever you’re doing to him. “Mmmgh…it…feels so weird…Ohhh…” You pause, sliding your bulge right between Tails’ asscheeks and, for a brief moment, simply looking down at your gorgeous son. You admire the volume of his fluffy yellow tails, and the way his crotch throbs with the heat of his excitement. He’s enjoying this - you can tell. “That’s…that’s your p-privates…” he whispers shakily. He grips the sheets, breathing heavily with the thrill of his realization. “You’re rubbing your penis against my butt…” You feel no need to confirm what is already obvious. Instead, you give his ass a squeeze, just to tease him, and then, with a sudden yank, you pull his undies down to his knees. Tails squeaks as his little cock is exposed. He knows you’re staring at him, too - that little dick and tiny set of balls have caught your eye, certainly, but your gaze is drawn in particular to the tight little underage hole that you’ve just exposed. With your son bent over like this, back arched and all, the boy’s butt is already spread wide open, and you know it’ll be easy to keep him in that position. “W-what are you gonna do to me?” he stammers. You tell him that you’re going to play a big boy game with him - one that will make him feel extra good. He seems confused by this, but the boy trusts you enough not to question it. “What do I have to do?” he asks. You tell him to sit right where he is, and keep his bum in the air like a good boy. Tails has no trouble complying; you can tell that being exposed like this makes him slightly nervous, but he seems otherwise quite eager for whatever you have in store for him. Your dick throbs in your underwear as you hook your thumbs into your waistband. You have been waiting ages for this - biding your time, day by day, for your lover to leave the house long enough for you to do this. Now that they are gone, there is no one around to stop you from giving Tails a proper fucking for the first time in his life. You wanted to do this years ago. When you pull your underwear down, your dick springs from your underwear, flinging a drop of precum onto Tails’ rear end. But a bit of precum isn’t enough to get your son ready for what you intend to do to him - you need more. Much more. Your son squeals pathetically as you pour a generous amount of lube onto his little virgin butt. A shudder runs all the way up his spine, and he tries not to squirm too much in spite of the sudden cold sensation. “I-It’s cold…what is that?” You tell him that it will warm up soon. As you watch the fluid drip down Tails’ ass in glistening streams, your cock aches with anticipation. The same thing seems to be happening to your son - and as it does, his asshole tightens up, contracting with each desperate twitch. You can’t wait any longer. Poised behind your son with a firm grip on his bright yellow tails, you push the tip of your cock against his tight little entrance. Even with the lubricant soaking his hole, it puts up some resistance, preventing you from simply slipping it in. You decide to give it a firm push, pressing your hips forward into your son’s body until his butt gives way. Sure enough, you eventually manage to push your dick inside, and the boy lets out a helpless moan as it pops into his ass, jaw dropping open as he takes in the sudden, overwhelming sensation. With the tip of your cock buried in Tails’ body, the boy’s body has begun to shake. Already, precum drips from the tip of his cock to the mattress beneath him. He can barely even fathom what is happening to him right now, and yet you revel in every second of it, grinning mischievously as you push your cock another inch inside. Now, the boy’s butt begins to stretch as you open him up, and the intensity sends Tails into a fit right off the bat. He moans helplessly into the sheets, unable to handle the size of your cock. Unfortunately for him, you aren’t even all the way in yet. Another inch, and Tails’ breath hitches; his tails writhe desperately, but you’ve got them secured in your grip. All he can do is whine and moan as you fill his butt, taking advantage of his trust in order to get your cock deeper inside of him. It only gets worse as you keep going. Each additional length drives your son deeper into the throes of madness - his prostate aches as your cock pushes against it and beyond. His legs shake uselessly against the mattress, shifting here and there as he struggles to find proper footing on the linens. Anything to get your cock deeper into his body. When you hilt, and your crotch touches his asscheeks, you give Tails a moment to get used to the sensation. Much to your amusement, he spends this reprieve shivering and moaning into the sheets. After that, you start thrusting. The boy’s anus clings to you as you withdraw, but not by much - the lube makes it easy to push your way back inside, even after you’ve pulled out all the way. He’s beside himself with pleasure as he feels you continue; with your cock so deep in his body, his legs start to fail, shuddering weakly under his own weight. His tails act as an excellent handle as you pick up the pace; though you’re careful not to damage them, it would be a waste not to use them to their fullest potential. Your son doesn’t seem to mind; he moans all the same, whining desperately as you fuck him thoroughly. You revel in the act of taking your son’s virginity. His moans were always a sound you dreamed of hearing; his body a prize just out of reach. But now that it’s just you and him, you make it your business to take what is rightfully yours. You slap Tails across the ass as you pump your dick inside of him. He cries out, confused and horny, as his pain becomes pleasure in the blink of an eye. “I-I love you!” He cries out. “Mmmggh! P-Please…I love…you!” You feel your cock twitch at the sound of those words - and it seems he feels it too, as he squeaks with every subtle movement. You’re quick to affirm him - to let him know just how much you adore him. With your hands on his asscheeks, you pound away at his butt with wild abandon. Nothing exists to stop you now - it’s just a matter of when Tails’ legs give out. “I…OH! MMmmmgghh…I f-feel weird!” You know your son is about to cum. He’s bucking his hips wildly now, unable to control his own body as the pleasure mounts in his groin. The panic in his voice says everything you need to know: he’s scared, aroused, and on the verge of his first orgasm. He doesn’t even know what cum is, let alone that it’s about to cum out of him. The thought thrills you more than you’d care to admit. Grunting with effort, you go even faster. Picking up the pace, and pounding Tails’ little butt yet faster. His insides feel incredible on your cock, and his butt warms you as it squeezes like a vice grip. With such a wonderful fleshlight, you figured you’d be the first to cum, but as it turns out, this was not correct. With a helpless scream, Tails arches his back, firing a cumshot directly onto the sheets as he experiences his first prostate orgasm. His sticky white fluid soaks the bed within seconds, and the event leaves his little cock twitching uncontrollably. Seeing that is enough to drive you over the edge, and you’re unable to keep yourself from pushing your cock deep into your son’s body and erupting deep into his young body. A huge amount of cum pours out of the tip of your cock, and you can feel it flowing out in waves, soaking the inside of Tails’ body as you shoot it deep into his ass. You put in a few more powerful thrusts, moaning with satisfaction as you push the rest of your cum into your son’s belly. The exertion of your orgasm leaves you panting, and when you finally pull out, cum pours freely from your son’s exhausted body and onto the mattress. “I’m a big boy…” he whimpers. Tails struggles to look back at you with a half-hearted smile. “Right?” You can’t help but smile at your son’s dedication. With a nod, you tell him exactly what he wants to hear. ‘Yes, sweetheart…Yes you are.’