Patient Zero

Zachary pushed along his cart as he toured the store, occasionally glancing down at his shopping list and shovelling items into the cart, the fox focused on his plans for the day. His grandson, Matt, was coming over to stay for the upcoming weekend, an event that he was always looking forward to, being quite close with the boy. As he came around the corner of some shelves to pick up a tube of toothpaste, he noticed a selection of hair and fur dyes, the old fox laughing to himself as he eyed the colourings. He glanced at his face through the reflection of a nearby glass door, gently rubbing his muzzle, much of his fur already starting to lighten up and go grey from age: maybe some nice red fur dye would help him regain his younger look? He shook his head and laughed once more as he continued onwards and grabbed some toothpaste. Zachary travelled all around the shop, not paying much attention as the radio channel piped through the loudspeakers changed into the news, the headlining story of the day talking about an odd disease that had started spreading through the country towards the beginning of the month. The report said that the disease seemed to be transmitted mainly through sexual contact, urging everyone to practice the use of condoms, especially when having hookups or one night stands. The news didn't even reach the fox's ears, the old man being too busy pushing his nose down against his shopping list, squinting at the text through his eyeglasses, grumbling about needing some new lenses or a wife with bigger handwriting. After finally getting everything on the list, he pushed his cart to the checkout, rolling up to the short line to wait his turn. In front of him were two males, a husky and a cheetah, the two standing side by side with the feline quite obviously groping the canine's ass. Zachary quietly groaned and looked away, rolling his eyes at the pair. It seemed like the city had more and more public indecency happening every single day, the fox simply blaming the debauchery on younger couples not being able to keep their hands to themselves. 

After paying for and bagging up all of his groceries, Zachary loaded the bags into his car and drove back towards his house, the busy city streets slowly morphing into more quiet residential neighbourhoods, beautiful gardens and well groomed lawns replacing the brick buildings and concrete fields. He drove up his driveway and parked his car, climbing out and glancing towards the kitchen window, spotting the face of a young cub peeking at him from behind the curtains, quickly jumping down and running off as soon as the boy noticed that he had arrived. The fox smiled and grabbed his groceries, recognising the little spy as Matt, happy to finally get to spend some more time with his grandson, busy times in school and difficult schedules with his son's work having made it hard for the cub to stay over at his place in the last few months. He unlocked the door and pushed it open, a flash of bright red fur immediately pouncing onto him, nearly knocking him and his heavy baggage down onto the ground as he laughed, 
"Grandpa!"
"Woah, hey there champ, watch out that you don't bowl me right over!" 
Zachary set down the groceries to kneel down and hug the boy, both canines smiling and laughing. The cub let go of him and peeked into all of the bags, curious about any possible treats he might have been smuggling, 
"Ah, don't you sneak off with any sweets! No candy before dinner, like your mother said."
Matt pulled his muzzle out of the plastic bag, jumping in place a few times, 
"Ooh, can I help you carry the food!?" 
The old fox picked up the lightest of the grocery bags, setting it down in front of the cub, 
"Alright, here you go, but be careful! That's the heaviest one, bet you can't get that all the way to the kitchen!" 
The boy heaved up the bag with both hands grunting slightly as he scampered off into the house, his tail wagging hard enough for a few stray hairs left of his shedding winter coat to blow off, his grandfather following close behind with the rest of the shoppings. 

The two canines set about unpacking all of the groceries, first pulling everything out of the bags and setting them onto the table together, then the grey muzzle stowing everything in either the fridge or the cabinets, the young kit handing him one item at a time. As they were unpacking, the pair talked about the boy's school and hobbies, Zachary asking how his spring had started, 
"... and then I got a new water pistol from dad, and I showed it to-" 
He suddenly stopped mid sentence, his ears popping up and a big smile forming on his muzzle as he stood up on his seat, 
"Ooh, I almost forgot! Me and a couple of my friends wanted to have a sleepover, but my house is too small, mom says that my room wouldn't have enough room for more than like two other people sleeping on the floor. Can they come over here for a day or something, 'cause my room here is a lot bigger than my room back home?"
Zachary sighed and hummed for a few moments, the idea of a group of rowdy kids not necessarily enticing him immensely. He finally nodded, 
"Alright, you and your friends can have the sleepover here, for as long as you'd like."
"Yes! Thank you grandpa!" 
He pet the cub on the head, the house phone suddenly ringing. He walked over to the phone, picking it up as Matt sprinted off upstairs to message his friends about the plans for the sleepover being greenlit. The fox picked up the phone, clearing his throat before answering, 
"Hello?" 
"Hey Zach, sorry to call like this."
He recognised the voice as his kangaroo neighbours' 14 year old teen boy, Adrian.
"Oh hey Adrian, it's alright, you didn't interrupt anything. Everything alright?" 
"Oh, yeah, sure. I was actually calling about a little favour I was hoping you might be able to do." 
"Of course, what did you need?" 
"Well, my dad's a bit busy, he's in the neighbouring city doing some business dealings or something, and he has the family car with him. Either way, I kind of wanted to go to the park today to hang out with some of my friends, but it's like a two hour walk from here to there. I was thinking that maybe you could throw me there in your car?"
Although the man didn't really want to squander too much of his time away from his grandson, he was also rather close with both the neighbours as well as the teen, thinking that the little trip probably wouldn't take much time anyways, 
"Alright, that sounds doable, come on down here and I'll be out in just a few minutes." 
"Okay, great, thanks so much!" 
He set the phone down, fishing out the car keys that he had just stuffed down into his pockets. 

While Zachary was slipping on his shoes, he shouted to the young kit up the stairs, Matt still busy messing around with his phone in the guest bedroom, 
"I'm gonna go take the neighbour's boy over to the park, grandma should be home soon enough. You gonna be okay on your own until then?" 
"Yeah, I'll be fine!" 
"Alright, see you in a bit champ." 
"Later!" 
The grey muzzle threw on his cap and stepped outside, enjoying the warm midday sun and the gentle breeze as he waited around by his car. He and his wife had always been rather close to the neighbours, the other family moving into the neighbourhood shortly after having their child. He often helped the neighbours with whatever he could, including often taking care of Adrian, the boy growing to be something akin to his second grandchild. After about a minute or two of waiting, he heard the neighbour's door opening up, Adrian walking out with a big and confident smile on his face. Zachary had to stare at the teen for a second just to even recognise the boy, the kangaroo being a fair bit more muscular than the fox had remembered. In addition, he had seemed to have grown a few inches in height as well, his strong tail hovering just above the pavement as he walked, his t-shirt letting his muscles shine through it. The two exchanged a friendly wave before both sat down inside of the car, Zachary pulling out from his yard as he spoke, 
"Long time no see, huh? It's been, what, two weeks since we last saw each other, right?" 
"Yeah, around that I'd say."
"Too long, is what I'd say. You've gotta come visit us more often, or me and my lady are both gonna be bored to death."
"As long as there's grandma's lasagna on offer, I'll be there anytime you want."
"You've gone through a bit of a growth spurt since we last met it looks like. Have you started working out as well?" 
"Mhm, every now and then. Like it~?" 
"Uhh… sure, I think it suits you, and more fitness is never bad. Plus, I'm sure it'll help to pull the girlies once you get old enough for all of that stuff."
The two laughed as they drove through the residential streets, heading towards the centre of the city and the main park. 

After a few moments of sitting near the kangaroo, Zachary started to notice that the boy was using some very odd sort of a deodorant, the smell of it lingering around in the cabin. It was sweet, just barely skirting the line between pleasant and sickly sweet, but with a hint of fresh greenery, all in all providing a pleasant though weird scent. He didn't bring up the deodorant at all, the duo simply having some light conversation until they arrived at the park, the fox finding a parking spot at the edge and coming to a stop. Adrian pulled out his phone and gave it a few taps, giving a small sigh before looking over at the canine, 
"I think my friends are gonna be late, again. I don't know if I really wanna hang out all by myself until they get here, would you want to spend some time at the park with me?" 
He noticed the older male debating and thinking about it, cranking up his persuasion attempt, 
"It'd only be for about an hour or so, just 'cause, you know, you said you wanted me to spend some more time with you and all that." 
The guilting worked wonders on Zachary, his eyes closing as he sighed and turned off the car, 
"Alright, let's go."
The boy smiled as he grabbed up the small backpack he had brought with him, the pair heading deep into the park, strolling through the grass and the trees. There were a good handful of other people around as well, the fox noticing just how openly lewd the others were, spotting two guys walking hand in hand into an outhouse while another couple simply stumbled into a small bush slightly off of the main path. The two finally came to a small clearing, nestled between a few large trees, giving it some privacy, the kangaroo seemingly deciding that it was a good enough spot. He pulled out a large towel and laid it down on the grass, sitting down and patting the spot next to him, the old man joining him with a slight grunt. For a few moments they simply sat still and enjoyed the sun shining down on them, before Adrian eventually pulled his t-shirt up and over his head, tossing it off to the side. Zachary looked at the topless boy with slight surprise, not expecting any sort of undressing to happen, his eyes taking in the impressive muscles. The teen pulled out a bottle of sunscreen from his bag, squirting out a good amount before spreading it onto his arms and abs, slathering himself all around before finally turning to the grey muzzle,
"Would you mind getting my back? I can't really reach back there, and I really don't want to be burnt."
"Oh… uhh… sure…"

Zachary grabbed the bottle of sunscreen from the boy, holding it in his hands, a slightly awkward look on his face as the kangaroo laid belly down on the towel. He hesitated for a few moments as he looked down at the waiting cub, glancing around to make sure no one was watching the pair. He was well aware of what an older guy rubbing sunscreen on a half naked boy's back would look like, and he certainly did not want that sort of fame around the city. He wouldn't have done the favour for most others, but he assumed that Adrian was simply too young and innocent to realise the lewd association of the act. What the fox didn't see however was the kangaroo's face, a huge grin on his muzzle as he heard the man squirting out a big glob of the sunscreen, his legs stealthily spreading out just a tiny bit to accommodate the growing erection grinding against his belly. Zachary noticed that the sunscreen had an odd yellowish tint to it, and that it had a similar sweet smell to it as the boy's deodorant, but he didn't pay it much attention, pushing his palms down on Adrian's fluffy back. As he spread and massaged the cream into the boy's muscular back, his hands began to oddly tingle, his nose twitching as he breathed in the fumes of the sunscreen. He had originally started with a very fast back rub just to get it done and out of the way as quickly as possible, but soon his movements slowed down, morphing into more of a sensual massage than anything. The fox had never had even a single gay thought in his life, let alone one about an underage boy, but now he found some very uncouth ideas suddenly popping into his head as he stared at the kangaroo laying down in front of him. He tried to ignore the lewd ideas at first, but soon they overwhelmed him entirely, his mouth going dry and his breathing growing faster, his wife of multiple decades completely forgotten as his hands slid more and more down the boy's back. Soon Zachary was grasping at Adrian's firm buns through his shorts, the canine's own jeans starting to bulge slightly as his shaft pushed out of its sheath. 

Adrian smirked as he felt the old man's hands kneading his ass cheeks, hearing the fox's laboured breathing and panting. He had his victim on the hook, and now all he had to do was reel the canine in. He lifted his head up from his hands and turned to the man, staring deep into Zachary's eyes with a wicked grin, 
"Good job, but you've still got the other side to work on~" 
He flipped around onto his back, putting his hands behind his head as he let out a tiny sigh of relief, his cock finally allowed some space. His shorts were tenting to the point that the band of the pants was pulled up off of his belly, the outline of his shaft very visible. Zachary nearly passed out as he looked at the bulge, his head feeling light at the sight of it, a sudden strong and manly musk wafting up from the boy's crotch. He grabbed the shorts and gently pulled them down the teen's legs, revealing that Adrian wasn't wearing any underwear, his dick pointing up at the sky. The tip was constantly leaking thick precum with a yellow tint to it, small squirts of it gushing out onto the cub's belly and pubic fur every time it throbbed, the musk only growing stronger now that the manhood was fully uncovered. Finding the temptation completely irresistible, Zachary gently grabbed onto the shaft, feeling it quiver and pulse in his palm, some of the sunscreen still left on his fingers, the slick cream spreading along the rod as he stroked it. There was still a tiny bit of his old self left in his brain, unable to control himself and stop the disgusting acts from happening as if he was drunk. The grey muzzle got onto his knees and leaned down closer to the wonderful package, one hand still jerking the boy off as his other groped the heavy set of furry balls hanging just beneath, the size of both the cock as well as the ballsack immensely impressive even for a grown man, let alone a young boy. He gulped and licked his lips, every neuron in his brain commanding to take the meaty shaft into his maw, his muzzle closing in on the tip. Adrian groaned in satisfaction as the fox swallowed his peak, Zachary's tongue slathering and grinding against the urethra, lapping up the constant stream of precum. The man didn't have much experience with the taste of another man, only what little experimentation he had done with his own cum when he was much younger, but he did know that the kangaroo's taste was very unusual: the pre had a salty tang as expected, but it came with an aftertaste of what was close to tree sap. Every swallow of the liquid made him thirsty for more, the need and addiction forcing him to take more and more of the dick inside of his muzzle, his whiskers soon tickling the cub's balls as the tip pressed against the base of his tongue. 

While still completely hilted in the old man's maw, Adrian suddenly gave the fox a gentle shove with one of his feet, his dick sliding out of the canine's muzzle as he was knocked onto his back. He tried to get up but soon found the cub's strong hands grabbing onto him, turning him over onto his belly and pinning him down, the kangaroo's heated breath raising the hair on his neck as Adrian cooed into his ear, 
"My dad gave me a wonderful gift just yesterday, and that gift made me see some things in a completely new light. And now the gift has chosen you, and you'll soon see what I mean. You can thank me later~" 
He gave the man's neck a slow lick, dragging his tongue from the upper back all the way to Zachary's ear, his free hand tugging down his victim's jeans in the meanwhile. With a quick and hard pull, the grey muzzle's pants were yanked down to his ankles, his boxers following suit close behind, leaving his backside completely bare and undefended. Adrian pulled his backside up while leaving a hand on his head to keep his upper body pinned against the grass, his knees together as he felt his tail painfully grabbed and pulled to the side. The cub chuckled and gathered a glob of saliva onto his tongue, spitting it out directly on the older man's hole before bending down and shoving his tongue inside, roughly and forcefully rimming the fox to open the ass up and to provide some lubrication. Zachary huffed and whined as he felt the tongue probing his flank, his body feeling too weak to fight back in any meaningful way, his mind completely clouded and unfocused. Even still, his erection poked out of his sheath, bouncing up and down between his closed thighs, a rope of his own precum clinging onto the fur on the side of his leg. The boy pulled his muzzle out from his reluctant partner's ass and smacked his lips in delight, one hand still keeping the fox's fluffy tail off of his way while his other hand kept his large member at the ready, a big grin on his face as he looked down at the cute and virginal pink pucker, 
"Get ready for the ride of your lifetime, Zach~" 

The kangaroo gripped the old man's ass cheeks with both hands, squatting down to slide his tip between them, his precum oozing down the crack as he rubbed it up and down against the hole and moaned quietly. Zachary grimaced with the warmth and the pressure against his tailhole, knowing that he'd be penetrated any second, bracing against the ground. Only a few moments later, he felt the boy's rod suddenly push into his ass, his hole stretched to lengths he'd never experienced before, his anal virginity being taken in one sharp thrust. He yelped and whimpered, his whole frame pushed forwards and down by the force of the cub's push, his muzzle dragging against the grass. Adrian grunted and laughed, his huge balls pulsing as he drilled deeper and deeper into his victim, his hands still prying the ass cheeks as wide open as he could to give his girthy cock some room to move. Zachary could feel his asshole being gaped open, his body instinctively clenching down on the rod invading him to try and stop it, the tightening only serving to pleasure the young rapist even more. A slow trickle of the neighbour's precum began filling up his bowels, more and more of it gushing into him with every stroke. Though he gritted his teeth and dragged his claws across the dirt, his mind screamed and begged for more of it, his stiff dick dripping pre onto the towel under him, his knot completely inflated. The tightness of the old man made Adrian groan with every thrust into the fox, his tail whacking against the ground as he railed the canine, his obsession finally coming to a climax. He pulled the man down onto his cock and ground his hips against Zachary's ass to make sure each and every last inch of him was buried inside before finally letting out one final roar, his tip bursting with cum. Spray after spray of yellow seed emptied out into the fox's gut, the virus contained within immediately going to work on his body to finalise the infection that had already started well beforehand. The very last vestiges of his normal self were wiped out, the man being completely converted. As the warmth saturated his backside, he orgasmed as well, the very first shot of cum from his red rocket being the usual white cum, the rest of his load growing more and more yellow until it resembled the boy's sperm. Adrian pulled out of the fox, leaving Zachary with a thoroughly creampied tailhole as he pulled up his shorts and grabbed up his bag, waving to the man before walking away, 
"You'll understand everything I've said soon enough, you'll be a new man in just an hour or two. It'll give you a target as well, and you'll know the feeling then~" 
Zachary collapsed down and rolled onto his back, breathing heavily as he felt tingling and cramping all over his body, his eyes staring up at the blue sky before he finally passed out.