“Do I really have to go, dad?” Kay Callaway asked her father, the Mudkip was sitting in the back of their family’s car. Her dad, a Larvitar named Jay turned to look at her.

“Me and your mother had this trip planned for a couple of weeks, Kay,” The red-scarfed Pokémon told his daughter, seeing them sulk in the back and gazing out the window. Since she came of age, the teenage Mudkip had entered that ‘angsty teenage’ phase later than usual. She loved her parents but didn’t enjoy all the affection or treating her like the hyper kid she used to be. The reason for her annoyed demeanour today was that her parents were going on an anniversary trip abroad; however, seeing the ‘activities’ the lovers had planned, they wouldn’t be bringing their daughter, instead deciding to leave the Mudkip with her grandfather on their mum’s side.

“Why couldn’t I just stay at home? I’m old enough, or why couldn’t Grandma Mira come over?” Kay sighed, crossing her arms irritated by her parent’s not allowing her to decide on the matter. This only made Jay sigh.

“We told you already, we’re not sure you’re ready to be left alone for that long, and Mira’s too busy to babysit you” the Larvitar explained to his child.

“Besides, Xavier hasn’t seen you since you were a kid, I think it would be nice for you two to meet up again” added Mabel, Kay’s mother who’s also a Mudkip. “It’s only for two days as well, then you’ll be able to go out again like you normally do, he promised not to get in your fin either,” She told her, not wanting to annoy their child even more.

“Ugh…fine,” the younger of the two water types finally agreed to the already planned stay. After five more minutes in the car, the family found themselves at the house of Xavier, the titular father of Mabel standing outside.

Xavier was a finely built Swampert, especially for his mature age, the best way to describe it was the perfect dad-bod for many. He wore a black chain necklace with an X charm, the same shade of black. The grandfather had a huge smile on their face as he watched his daughter, granddaughter and son-in-law.

“Dad!” Mabel spoke with glee, rushing over to her father and getting a warm hug from them.

“Ah, Mabel, It’s been too long,” Xavier said, soon breaking the hug to look at Kay. It had been around ten years since they put eyes on them, recognising how much they have grown in the past decade.

Kay was a paler shade of blue compared to most other mudkip, they wore a long lilac scarf that touched the ground even when they stand. Besides her skin and scarf, the only other thing which differentiated her from her mother was their endowment. Since hitting womanhood, her bosom bloomed immensely, dwarfing and putting to shame Mabel’s own.

The Swampert moved closer to Kay with arms out, she just looked away, leaving their grandfather to stop and put their arms down.

“Oh yeah…Jay told me you aren’t exactly one for hugs” Just gave her granddaughter an awkward smile, unsure what caused her to gain such a personality.

“Hey, Xavier” Jay called out to their in-law from the car “We’d love to stick and chat, but we don’t wanna miss our flight”

“He’s right, sorry dad but I promise to call you whilst on our vacation” Mabel added, jumping back into the driver’s seat.

“Yeah, if you got  time from all the fucking you’ll be doing…” Kay articulated with annoyance, her mind recalling how annoying it was to have her room right next door to theirs, hearing them go at it once a week or more. Her parents just blustered out her name whilst Xavier chuckled.

“Heh… Well just have a good time then, we’ll be okay” The Swampert spoke. He knew how sexually open these two were, remembering all too well when he made Jay’s ass sore on the sofa, or that time he learnt about him knocking up his child, blasting a load down their throat as a semi-punishment.

Jay and May said their goodbyes and backed out of the driveway and onto the road, leaving the grandfather with their granddaughter. Xavier just looked down at Kay, arms crossed as they gazed up towards them.

“So…would you like to order breakfast?” He asked awkwardly, hoping to start these next two days well by treating her to something to eat, alongside feeling a bit lazy to cook right now.

“Sure,” Kay gave a short-and-sweet reply, following him into their house, reluctantly ready to spend the next two days with her grandpa.

The delivery breakfast was rather lovely, the two ate together, but no attempts at small talk Xavier tried worked, Kay just gave simple replies with not enough to go on. In the end, they just finished their meal and went their separate ways. The Mudkip went up to the guest room (originally her mum’s old room) for some privacy, this left the mature Swampert alone as he usually was.

“Man…She’s changed so much since we last met,” Xavier thought aloud, while he rested his behind on the sofa and watched TV. It did annoy the Swampert how their daughter’s kid wasn’t one to talk with them.

“Oh well, maybe I should work out, then see what she wants for lunch” He sighed before getting up and heading to his personal gym to build up a sweat and burns those carbs.

Kay collapsed onto the bed that once belonged to her mum, having felt rather tired from the late night she had. It was a meetup with a close friend, a meetup where the young lady would have to take an early shower to cleanse herself of the smell of seed and sex from the fucking she had with her friend so that her sex-fascinated parents wouldn’t smell it on her and ask how it went or who it was with.

While lifting weights, Xavier thought to himself how much their granddaughter had changed. The Swampert remembered her being quite the happy, energetic girl when she was young, recalling the pics and vids Mabel sent of her having incredible times of bonding with her parents, making memories and detailing the Mudkip’s childhood. He fondly recalled the time he first met Kay, watching the cute emotion of annoyance on her face as her cheek was pinched by him. Slowly the rate of pictures became slower, his granddaughter preferred to be alone than have pictures taken of her all the time. Moving off the weight bench, the Swampert went onto another apparatus to work his legs and arms a bit more, the scent of sweat from a rigorous exercise routine was starting to fill the room, all while Xavier reminisced and wished he could spend more time with his only grandchild.

Time passed and Kay woke up from her nap. The Mudkip stretched her arms out, stifled a yawn and checked her phone for the time…

11:30 AM, Kay had been asleep for about an hour and a half, her nap helped regain some energy, but it was nowhere near being a substitute for a good night’s sleep. She felt fatigued, not as much as before breakfast, yet still felt sleepy. Maybe something sweet would be the perfect pick-me-up her batteries needed.

Kay opened the door and went downstairs with the plan of finding something like chocolate or a candy bar; but when she went further down the stairs an odd scent touched her nose, it was something she had smelt before, but nowhere near as strong as she knew it was right now. The scent’s source was before the kitchen, this meant the Mudkip soon came face to face with the origin of this peculiar smell.

Xavier sat on the centre of the sofa, a large towel had been placed on it to make sure the worn leather isn’t drenched in the sweat that covered his blue body, his arms rested on the back of it, one of the more potent sources of that masculine musk the Swampert cultured from the hour-long workout session. They seemed to be having a light nap, just like Kay had been in for the past hour, but when she entered they roused from their slumber, he looked on over to his granddaughter with an awkward smile.

“O-Oh hey, Kay,” Xavier said, his face having gained a faint red tint from his relative seeing him like this. “S-Sorry, I usually have a small nap before I shower, better to get all musky again from sleeping, right?” He explained to her, it was a habit the muscle-gutted water-type gained from not having anyone else at home besides him, they did make sure to clean up and freshen the air regularly, including when guests came around.

“Y-Yeah, I guess…”  Kay responded with, sorta getting what her grandpa meant; but she wasn’t exactly all there, it wasn’t because she had awoken from an hour-long nap, but more the natural stench coming from his body intruded her nostrils. She sniffed at the air, being luckily Xavier didn’t notice her strange, newfound curiosity at his musk.

“So…Can I get you something?” He asked, wanting to be a good grandparent to her.

“N-No I’m good” She responded. It was an oddity why they were taking sly whiffs of their granddad’s musk, and slowly starting to enjoy it? She shouldn’t be, it was wrong! They knew feeling such a way for a relative was wrong, yet she wasn’t exactly feeling that way for Xavier, but more for the natural scent he emitted, the Mudkip started to find it oddly addicting. Kay was getting a bit more eager with her sniffing of their unique aroma. With each sniff the scent became more intense and detailed to her, it wasn’t a filthy scent one would get from a rigorous workout session, instead, it was like a rich perfume that dotted the mature water/ground-type’s body, it was odd, yet their musk made him more attractive as if it was a hallucinogen made with the single purpose of making the well-kept, toned, muscle gutted body of a young grandfather even hotter to those that took a deep breath of it.

“Umm…Kay?” Her grandfather's voice called out her name in a mixture of concern and confusion. This took Kay out of what she was doing, that being subconsciously shuffling closer to Xavier, following her nose had led her to place their face right against his chest, getting a deep breath of it, some of the salty sweat that laced his body dampened her light-blue skin and tickled their lips. Her eyes were closed, but they sprung open, the realization hitting her like an anvil dropping from the sky.

“O-Ohmygod!” Kay pushed away from their granddad’s chest in shock and embarrassment. “I’m so sorry, I-I didn’t mean to,” She entered a minor state of panic, taking deep breaths, worrying about how he would react to finding out their newfound interest in their musk that even she couldn’t explain.

“Kay, if you really wanted to spend a bit of time with your old man, why didn’t you say so?” Xavier answered back, seeming none too phased by her granddaughter huffing at their chest. The Mudkip’s face had broken in a blush since they were caught, but with them seeming to be okay with it they were now beet red. 

“I-I…” The water type didn’t know what to say or even do now. She never expected him to be alright with their actions. Part of her wanted to embrace this moment, yet knowing how forbidden it was to hug and breathe in their natural musk, wanting to explore the areas where it was strongest and huff it directly into their lungs, or clean their body of sweat, these lewd ideas seemed to be getting to her more than expected, a tingling warmth spread throughout their loins and up their spine. She wanted this but feared what her parents would think if they learnt about this, like if they happened to walk in after missing their flight, and see their daughter, worshipping and tasting the scent and sweat of her grandfather. The mental fork in the road Kay was at was an immense decision. Luckily, Xavier was there to help her choose…

Whilst Kay stood in place, deep in thought. Xavier took his chance and embraced her tightly, the Mudkip’s face planted face against his chest once more and large breasts squished against their belly.

“I know you don’t like hugs, but if you want this, why not just give in? I’ll be okay with it,” The Swampert reassured his granddaughter while looking at their face as it shifted from being worried about an incestuous moment with her grandfather, to slowly closing her eyes, wrapping their arms the best they could around them, and taking another deep breath of his natural musk. A warm smile spread over Xavier’s face, knowing deep down, this was her way of saying yes.

“Heh, that’s the spirit,” Xavier commented on her returning the embrace and presenting her newfound interest in him and their unshowered body. The passion began to bring their pink, tapering length out from the confines of his crotch.

“So…wanna sit down and have a bit of fun with your old man, Kay?” Xavier asked. Kay lifted their head to look up at them.

“Y-Yeah~” Kay answered back, slowly starting to become drunk on their musk, the craving for more became apparent and all the worry about taboo proceeded to vanish.

Xavier sat down on the sofa once again, arms in the same place as they were before, this time with Kay beside him. The Mudkip continued her habit of being close to his muscular yet chubby body, head right planted to it, huffing at that post-workout stench, also being daring by giving a few sly smooches to their chest. Xavier emitted a soft moan as Kay targeted their soft, blue nipples. Kay wasn’t performing foreplay or trying to get her fully erect grandpa to cum, instead, she just wanted to savour and explore his body which she started to find magnificent. 
Sweat coated her tongue, the salty flavour made her plump labia leak, and their musk caused it to quiver in pleasure. Kay’s smelling and tasting gained more fervour, there was no other way to explain it; Kay wanted to just worship the GILF with all her might. She never felt like this when it came to musk, the rich maturity of it made it addicting, she began to think how her close friend (with benefits), Tobias would smell like; but she put that idea in the back of her mind, for now, putting all of their focus into servicing the muskiest parts of his relative’s body. Speaking of which…

The well-endowed Mudkip moved her face away from his chest, following their nose whilst taking small sniffs before coming face to face with their potent pit, pushing her face right into it with a hefty moan. It was much, much muskier than their chest, being a metaphorical and literal pit where it hid, along with the sweat that began coating their face and tongue.

“W-Woah! Never expect you to be into this kinda stuff,” Xavier gasped in surprise, never expecting his daughter’s child to have so many kinky bones in her body. “Not even Mabel would dare do that,”

That surprised Kay to a high degree, she never expected that he and her mum had been lewd together, she would wonder what other incestuous acts have happened in their family; but that was of no matter to her, she was getting a mouthful of Swampert sweat, drinking it down before swabbing at their sensitive underarm with their dexterous tongue.

In his long life, Xavier hadn’t experienced much in the way of pit play, yet he couldn’t lie that having someone like Kay, who he always thought to be quiet and non-dominant, who now was worshipping their armpit with hidden gusto both of them never knew about.

With various kisses, sniffings, lickings and moans, Kay became wetter and wetter. 

“F-Fuck~” Kay moaned out before huffing again, “W-Why is this so good?~” She asked, but the Swampert had no good answer, his mind going blank from this peculiar pleasure he felt, all the while his granddaughter loved playing the part of an assertive loving sweat rag. With their raised arm he caressed her back for doing a great job, while their free arm went ahead and stroked his throbbing member. Beads of watery precum dripped from the tip, his firm hand coating his cock with it. Kay patted his chest, letting him know it was time to swap pits, with her climbing over him to reach the other underarm and savour his exotic flavour, mirroring her motions and enjoying it just as much.

Xavier was loving the feeling, realizing the experience she was getting just from doing it right here. He started to wonder how good that mouth would be on his shaft and sack; but first, he had some other places in mind…

“Mmmmm, say, Kay, I think I know a place you’ll love~” His granddaughter came out from their sweaty underarm, curious as to where they meant and eager to try out whatever their granddaddy had in mind.

Xavier repositioned the coffee table to be in front of the sofa, allowing him to rest his legs up, and give Kay perfect access to their feet, which she was basked and sniffed at. It wasn’t as pleasant as his chest, yet there was something peculiar about the smell that she couldn’t put her finger on, it stood apart from the rest of his musk and made her leak like a loose tap.

“Go on, have a taste,” Xavier said, wiggling his toes in front of their face, giving a teasing tap to their nose with them. “Your dad loves having these stompers by his face~”

At this rate, the fact her father and their granddad had fucked wasn’t a surprise, all Kay wanted to do was give their old man’s feet tons of kisses, lather them with her tongue and just all around fall in love with them as she had with the rest of their body, and him in general.

After a few more whiffs at their mature feet, Kay went ahead and gave his right foot a delicate kiss at its heel, then she started slowly shifting upwards, planting her lips on each part as they did. Much like how she was when it came to playing with the GILF’s chest and pit, the Mudkip started getting somewhat feral with their worship. She started to emit heavenly moans whilst inhaling their musk.

Xavier teased his grandchild a bit more, using his free foot to grope their bountiful breasts and tickle those perky nipples with their toes, their other foot was used to pinch her nose, watching them shudder at the feeling, he watched her instinct take over, her arm moved down, rubbing at their needy pussy, the sensory overload had made her immensely wet, she needed orgasmic release; yet while thinking about it more, she felt a certain embarrassment at the concept of cumming from huffing at a relative’s musky body and drinking down their sweat like it was the only source of water in the most barren of deserts. She wanted to move her hand away, but the pleasure she felt from strumming their clit like a bass string was still a stunning sensation. 

“That’s it, love those soles like your daddy does, you naughty girl~,” The Swampert said, his words egged her on, and inspired them to go much further. Her tongue acted more depraved, their mouth cupped around his toes, suckling on them as if they were her mother’s teats or Tobias’s cock. At this rate, all the sweat on Xavier’s feet had vanished, replaced with a thin layer of saliva that belonged to Kay coated them, it was a perfect example of how much the Mudkip loved them. Metaphorical hearts were in her eyes, taking deep breaths after doing so much worship.

“Woah, Kay, you just about cleaned all the best parts,” A mischievous smirk formed on Xavier’s face. Kay looked up at him, eyes half open whilst looking at his gorgeous cock along with the rest of him. “I mean if you’re up for it I guess I can-”

“Show me!” Kay cut him off, their musk-tainted mind threw away any precaution as she agreed to it without knowing, ready to have a taste of this last place, no matter where it was.

Kay expected it to be somewhere more sexually oriented compared to where she worshipped before, they thought it would be cleaning and praising his perfect orbs; instead, she found themselves face to face with their butt and clean, virgin pucker. Kay learnt two things while gazing at their backside; Swampert ass is incredibly sweaty and musky, and she loved the salty taste of their hole, taking their first lick and sniff of it. 

Each lashing of their tongue sent sexual shivers up Xaiver’s spine, this wasn’t his first time being rimmed, but it was the first time anyone close to him had eaten his ass, not even Jay had the chance to rim him yet. He let out a relieved moan, their cock dribbling pre whilst Kay kept up with their obsession of worshipping the older man. They could hear her moaning every time they moved back from kissing his hole, their face got coated with ass sweat, guaranteeing she’d smell like him for the rest of the day. 

Kay’s fingers kept playing with her downstairs area, they had been wetter than a water type could be for a fair while now. The way her granddaddy smelt was just too heavenly for her, the way it stuck to her sweat-drenched tongue and clung to their tongue. Yet even as she felt an orgasm beyond the power she was used to brewing inside her, they didn’t want to cum like this, sniffing at their grandpa’s butt. But her fingers still betrayed her wishes, and the intensity of his steamy butt made it hard to focus. It took all her mental fortitude for her to get her arm to cease masturbation, only for both to spread his cheeks, the Mudkip shoved her face right between their crack, getting her tongue to penetrate their pucker and fully dine on it.

“Woahohohoho!” Xavier cried out from the semi-alien pleasure. Yes, he had been rimmed before, but it was rare that someone got their tongue right in there to treat and please his ass even more. The fact that Kay was one of the few to do this was astounding.

With her face right in it, this meant Kay could only smell their lovely bum and nothing else. Eating him out was exotic, exhilarating, and so delicious,  so much that she could, she could…
 
Kay had to push away from the Swampert as they began to let out a multitude of moans, their legs unable to hold the weight of their top-heavy body anymore, as regrettably for her, she had just came from worshipping her grandpa’s musky body. Her wet vag squirted jets of juice onto the carpeted floor. Xavier watched with a soft smile, making a memory of watching his fully grown granddaughter cum thanks to their aid. The voluptuous view lasted a couple of minutes, when it came to an end the young lady went rosy red with embarrassment.

“I-I can’t believe that just happened…” Kay said, feeling more humiliated than she ever had, even accidentally sending Tobias a nude photo wasn’t as humiliating as having an intense orgasm from performing incestuous body worship. 

“Come on, don’t feel embarrassed that you spent such a great time with your granddad,” Xavier commented, bending over to pet her head and take a cheeky pinch of their cheek.

“Grandda~d…” Kay’s normal personality came back just because her granddad took her state to perform that annoying action. Whilst coming back to her senses, the Mudkip noticed he was still throbbing hard, the pleasure wasn’t enough to make him blow.

“N-Need some help with that?” She asked, pointing to his phallus. Xavier smiled in response.

“Depends, there’s something I got in mind, only if you want to though?”

It took a moment for her to ponder it, but her answer was clear as Xavier’s cock was begging for more.

“S-Sure, we’ve gone this far already,” Kay agreed whilst admitting that this couldn’t get even more depraved as it already had. 

“Shall we take this upstairs then?” He asked another question, Kay giving a simple nod in return.

The mature Swampert carried Kay in both arms, the two giving forbidden looks of love at one another. They reached his bedroom, Xavier placed his grandchild on the centre of the double bed, he crawled onto the bed, positioning themself over them, with length aimed at their dew-drenched flower.

“You sure you want to do this? Just so you know I can be a little rough, but I’ll make sure-”

“J-Just do it already, Granddaddy~”  Kay didn’t let them ramble on any longer, they were ready for this, and her crotch was practically begging for it.

Not wanting to waste any more time either, Xavier went ahead and pushed his tapering tip against their swollen slit, the natural lubrication of a water type, adding how much she leaked equalled an easy penetration.

The mature mud fish’s girth made Kay squeal and let out a cry of joy. She had vaginal sex before in their life, yet just as he warned, Xavier was rougher than her fuckbuddy, allowing their entire phallus to be engulfed by her entrance, pressing them with the force he felt would be enough for her.

“Oooooh, daddy~” Kay cried out, eyes focused on their grandparent, feeling all their cock go all the way, she would be sore come tonight. 

“Heh, It’s granddaddy, Sweetie~” He corrected her. His sack slammed against their taut booty, leaving its mark on the Mudkip’s groin area, much like how his shaft was leaving its own mark on their vaginal cavity by spreading it farther than the Simipour she was friends with had ever done. “Best be careful saying that, or I might have to go as hard as I did back in my prime~”

“Mmmm, s-sorry, daddy~” Kay played with fire, she practically begged for a rough time now, ready for what was to come

“Heh, remember, you asked for this~” The Swampert reminded her before going all out. Kay cried out in lust, Xavier now fucking her with the might of a jackhammer, a painfully pleasurable mating press.

“Mmm, you’re tighter than your mum,” Xavier stated, it being slightly rhetorical as Kay already knew they had several sexual escapades, it was safe to say a classic mating press was performed many times on their mother’s puss. The rhythm of Xavier’s thrusts raised their tempo, symboling the oncoming storm that was his orgasm.

“Ahhh, Kay, I-I’m close!”  He forewarned her, letting them know that it was time to brace herself.

“D-Do it!” The young adult commanded her old, old man to do so, and he was happy enough to oblige.

With a firm, final press, the Swampert’s cock went balls deep, firing a heavy hydro pump of spunk right into their warm puss, their cries of pleasure were in tandem, and the two water-ground types were fully spent.

“T-Thank you, Granddaddy…” Kay’s fatigue overcame her, and their eyes became heavier by the second, just having enough energy to watch their relative pull out, having baked a wonderful creampie down there for her to see before passing out.

“You’re welcome, Kay-dear~”  Xavier rolled to the side of her, knowing it was finally time to get some more rest, the shower could come later. 

Xavier’s smartphone sounded and shook, playing a jingle familiar to him, his ringtone. The Swampert picked it up and placed it to his ear.

“Hello?”

“Hey, dad,” Mabel’s voice emitted through the phone’s speaker. “Just calling to say hello and check what’s going on,”

“Oh, hi, Mabel” Xavier greeted her back. “Me and Kay are doing good, I just got out of the shower. How’s you and Jay’s holiday going?”

“Pretty good, we got here a couple of hours back, we’re just relaxing in our suite,” The older Mudkip let her dad know. “By the way, how’s Kay doing?” 

“O-Oh!” Xavier blushed while looking down with a smile. During his nap, the GILF had quite the wet dream, Kay had woken up to notice that, deciding to take matters into her own hands. His head was in her mouth and those large tits hugged it, enjoying the flavour of his pre in the process.  

“S-She's busy, texting her friends, I think” His lie was paper thin, yet it seemed to work on Mabel

“Oh, well tell her that me and her dad said hi,” She told him in her cheerful manner. While waiting for her dad’s response she thought he heard a moan slip through his lips.

“W-Will do,” Xavier quickly said. Kay’s head bobbed up and down adding a thin layer of spit to their shaft. The way she worked her mouth was beyond heavenly “Enjoy your anniversary you two,”

“And enjoy your time with Kay, daddy~” Mabel replied with an unseen wink that she knew his father would notice, thanks to the tone in her voice. “See ya in two day time~” and with that, she hung up.

Xavier let out a relieved sigh, finally able to enjoy the combo tit and blowjob his granddaughter was given.

“Heh, if your mother could see you now~” They grinned, Kay moving off their phallus to smile back at him. Tomorrow would be full of fun, now that she and her Granddad shared something in common.