Story by Custos
(Original posting 16 November 2023 on https://inkbunny.net/Custos)

Please don’t repost this story, let it remain in my gallery on inkbunny!
This story contains material for adults only, do not read if you’re a minor.
The material presented is fictional and for adult fantasy only.
The author does not condone any of the depicted illegal activity in real life.

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Anonymous commission: Do You Have a Big Penis, Dad?

The door slams shut as Rufus finishes up cleaning the dishes in the kitchen, perking his ears as he doesn’t hear his son’s usual call out that he’s home. The adult vulpine man turns his head slightly, his brown hair cascading over his face and accentuating his typical orange fox fur:”Casper, is that you?”
The father is wearing a yellow t-shirt and blue jeans, dressed casually since he’s a stay-at-home dad. His wife and he had decided that Rufus would take care of the household and the children so that she could focus on her existing career, not that she’s absent from their lives. As a family, it works pretty well for them and they all couldn’t be happier together as they wanted for nothing.

The eight-year-old kit’s nose pokes into the kitchen from around the door, Rufus can immediately see his cub is in deep thought and even blushing a little. Now, that peaks his curiosity:”Hey, champ. Is something the matter?”
Casper seems a bit absentminded as he walks towards his dad and gives him a hug, something he does every day after school. The kit seems to linger a little longer at Rufus’ waist, the father puzzled but continuing to embrace his child as he figures he should let his cub figure out what it is that’s bothering him, “You know, you can always talk to me or your mom if something’s wrong. Right, kiddo?”
Casper nods and withdraws, looking from his father’s belt area up to his face, giving him a shy smile, nodding.

His kit could be rather quiet when he’s working through something, or when he’s embarrassed, so Rufus just leaves it at that. He’s about to turn back around to the sink when suddenly his son’s voice speaks up, low in volume and nearly whispering in a conspiring tone:”Dad. You know what sex ed is, right?”
Rufus’ ears perk up as a tingle runs up his spine. The bulge in his jeans immediately plumps up a little, the grownup trying to act casual as he realises this might be a sensitive topic for his eight-year-old son:”Oh? Yes, I know what that is. Have you kits started sexual eduction at school?”

Casper comes to stand directly next to his dad, laying his hands on the kitchen counter and jumping up to sit on top of it, something his mother never allows but his father quietly tolerates:”Uhu. We learned all about vaginas and penises. And… sex.”
The young kit giggles and his voice became even lower in volume as he whispers the last word, Rufus chuckling as he continues to casually wash the dishes whilst presses his cock into the side of the sink, his member quickly fattening up:”Heh. It’s not a dirty word, champ. You can say it as loud as you want in our house.”
The eight-year-old giggles again, then lays his ears into his neck and speaks a little louder:”Sex.”
Seeing his dad smile encouragingly, Casper once again speaks, in a normal volume this time:”Sex!”

Rufus chuckles and rinses the dish he’d washed, placing it in the rack on the side before ruffling his son’s black hair with his wet hand, making the kit squeal as he tries to fend off the token of fatherly affection. The boy has the same typical orange fur colour that foxes have, sharing the same white jaw and stomach pattern as well as the white tip at the end of their fluffy tails. The only difference is Casper’s pitch-black hair, which he gets from his mother. And of course, due to his age everything about him is smaller than his dad’s. A subject that has brought up his sudden shyness, surprising his father with his next question:”Dad. Do you have a big penis?”

The adult vulpine male can feel his cock straining in his pants, the fabric bulging out in a twitch which immediately draws his son’s attention. Rather than hide it, he turns towards his boy and allows him to look, showing him that there doesn’t need to be any shame in looking at his dad or to ask him any question:”Well, son. Not that it matters, because it’s more important to be a good partner to the one you love. But your mother and my old girlfriends at least think I have a big penis, yes.”
Rufus gauges his son’s reaction, the boy deeply in thought as he’s staring at his father’s bulging jeans whilst still sitting on the kitchen counter, his own little jeans revealing nothing about what’s underneath:”Why do you ask, champ? Are you worried about your size?”

Casper blushes a little, averting his eyes a little:”Well. During break, me and some boys in class went to the bathrooms, and we compared. None of us were as big as in the pictures in class, really.”
Rufus nods and holds out his arms, his son immediately grinning and jumping into his father’s arms, clenching his legs around the adult’s waist and embracing his neck:”Well, it’s healthy to compare with your friends. And it’s normal you’re not as big as in the pictures, because those were probably showing adult penises. Do you want to compare my penis too?”
Casper gasps, clutching his dad’s neck as their noses are practically touching, the kit’s eyes peering into Rufus’:”Really? Can we? That would be so cool, dad.”
Rufus chuckles and starts walking, carrying his boy up the stairs:”Alright, then. Champ. Let’s move this to your bedroom.”

The two foxes enter Casper’s bedroom, the adult setting the kit down onto the floor and immediately starting to unbuckle his jeans:”Now, son. Remember, I have an adult penis so it’s going to be bigger. Also, if you have any questions, do not hesitate to ask. You can ask your daddy anything.”
Casper is blushing heavily, squirming around in place as his little hand instinctively reaches down to grasp at his own cocklet through his pants, his eyes glued to his father’s groin. After the jeans fall down to the floor, the tighty-whiteys follow suit and the little boy lets out an audible gasp as he takes in his father’s erection.

The shaft is as white as Rufus’ belly fur, girthy and long with a pink mushroom head revealed as the skin is moved down, a hefty set of balls underneath as the adult vulpine hefts his own scrotum in front of his eight-year-old son:”There you go, champ. This is daddy’s penis. Want to show me yours?”
Casper gulps and meekly nods, not taking his eyes off of his father’s mighty erection as he fumbles with his own pants, letting them fall down along with his own undies. A modest and perfectly well sized penis for his age is revealed, though, Casper’s nerves seem to be keeping the boy’s cocklet soft:”Gosh, dad. It’s so big!”
Rufus chuckles, reaching down and gently moving his foreskin up and down, making the juicy pink head disappear and reappear as a drop of precum oozes up from his meatus:”Don’t worry, son. One day yours will be as big as daddy’s. The men in our family have always had big cocks.”

Casper giggles as he blushes:”Daddy, that’s a naughty word!”
Rufus smiles lovingly at his son, shuffling a little closer and offering his big erect penis up for his boy’s inspection, perfectly at eye-level with him:”That’s okay, champ. When looking at daddy’s cock, you may use naughty words. But don’t tell mom I allowed you, okay.”
The fatherly fox gives his son a conspiring wink, releasing his cock as it bobs inches from his son’s vulpine nose, flexing it as it leaks precum as if beckoning his boy’s touch. Casper looks up at his dad and the adult male nods affectionately, silently encouraging his son. The little eight-year-old boy’s hands reach out and gingerly take hold of his father’s warm shaft, Casper giggling as he takes in the feeling:”Your cock is so warm, daddy. And hard and soft at the same time. Cool.”

For a few minutes, the boy is eagerly exploring his daddy’s penis, looking at it from all angles and touching everywhere, including hefting the heavy ball sac and squeezing the spongy slick helmet to look inside Rufus’ meatus. The little boy’s cocklet is now standing up firmly, looking like a more childish version of his father’s, but very handsome and well sized for his age. Rufus is panting as his chest heaves, his arousal getting the better of his as he softly husks:”If you want to give daddy’s penis a kiss, go ahead, champ. After all, it gave you life.”

Casper blushes shyly, squeezing more drops of precum out of daddy’s cock and then leans forwards as he closes his eyes, placing his little lips on the slick helmet and giving the tiny little hole in Rufus’ tip a loving smooch. Rufus hums in approval, closing his eyes as his fingers land in the tuft of his son’s mop of hair, gently caressing the boy’s head as the kit’s lips run all over the length of his fatherly incestuous penis. Casper has this inherent happy tingle in his tummy and loins, as if he realises this penis has created him, that it’s the mighty instrument with which his father gave him life. That it’s a boy’s greatest joy to kiss the penis that made him.

The kit opens his lips and without a second thought draws his daddy’s cock head inside, humming in pleasant surprise at the delicious flavour of his father’s meat and precum. Rufus is panting and gently hunching his hips into his son’s mouth, feeling the kit cradle and hold his balls, massing them one in his palms each whilst continuing to suckle like a baby from his mother’s teat. The boy discovers how sensitive the juicy pink crown of his father’s penis is, instinctively knowing that this is the area he should focus on to make his daddy very happy.
- “Ah, son. If you keep sucking daddy so good, daddy’s gonna shoot a lot of milk.”

Incredulous, the boy releases his father’s cock with a slurp, saliva and precum dripping from his muzzle and still connecting the two with a long strand:”Really? Daddies can make milk too? Is it yummy?”
Rufus chuckles and gently directs his son’s lips back to his sensitive tip:”Oh, yeah. It’s really good. When a mommy’s breasts are empty, daddies can help them out by nursing the baby some ‘boy milk’ too. If you want a taste, just keep sucking on daddy, champ.”

Casper’s pink little tongue swirls around his daddy’s sensitive mushroom head, Rufus huffing and puffing as he clutches his son’s head and shoulders, hunching into the boy’s muzzle as his balls slap wetly against the kit’s chin:”Good boy, son. Such a good boy. Daddy’s gonna… daddy’s… hngh!”
Panting and squealing, Rufus lets out a low howl as his shaft expands, his balls drawing up in their sac as jet after jet of delicious nutritious ‘boy milk’ explodes onto his son’s tongue and into the back of Casper’s throat. The boy is surprised, his eyes wide in wonder as he starts swallowing load after load of his daddy’s incestuous seed down into his tummy.

Rufus grinds his cock into his son’s muzzle, continuing to hold him tightly as he nuzzles the top of his boy’s hair, before finally collapsing backwards onto Casper’s bed. Casper stands in front of his daddy with his pants still at his ankles, his little cocklet twitching in delight as he swallows the remainder of his father’s last load, running his tongue over his lips and looking down at the thick white gooey semen covering the palms of his little hands:”So cool!”

The adult male grins, recovering and looking at his adorable son standing pants-less before him whilst he still has his own jeans at his ankles still too, his cock oozing the last drops of sperm onto his own stomach:”Ah, hah. Y-you know, son. A daddy’s semen is also the secret ingredient… with which he and a mommy make a baby. The sperm that I made you with tastes and feels exactly the same as you drank now.”
Casper looks at the remaining cum coating his hands in reverence, darting out his tongue as he licks it up with respect:”Ooh, that’s so cool dad. Thank you for showing me.”
Rufus smiles lovingly at his son lapping up his sperm from his little hands, his cock twitching as he muses in bemusement that his son is technically slurping down his potential brothers and sisters:”No problem, kiddo. Any time.”