The parasites

Story by GrantBellvader on SoFurry

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a commission i did for DefenderJdog, had a blast writing this hope you all enjoy and Jdog thanks for giving me the opportunity to write this for you


*beep beep beep* the alarm in Jacob's room room went off. He sat up and slammed his hand down on it shutting it off. With a grumble he got himself together and got out of bed heading for the bathroom rubbing his eyes and yawning. In a hurry Jacob got ready for his day showering quickly and tossing on his clothes.

He stopped to look at himself in the mirror wondering if he should trim his stubble looking himself in the mirror inspecting the slight bags under his green emerald eyes while rubbing the line of stubble that was accumulating on his jaw line. "boy...only a day without shaving and I look like hell" he half laughs "but I still look good" he grins kinda flexing the muscles he'd developed over his few years of working demolition.

After goofing around he finished getting ready snagging his keys from the table and rushed out the door. He had an excited stride in his step. Today was the day they were demolishing the old run down manor just outside town. Everyone had heard rumors about that place, it used to be an asylum for dangerous people, a science lab for a crazy mad scientist. Jacob had heard it all,

as much as he loved knocking down houses he loved the time he gets to go through them and poke around before he does the job. After all he'd gotten a number of odd baubles and trinkets from doing so. And hearing all the story attached to this particular place mad him just giddy to get inside and check it out.

Slowly he rolled up to the manor parking his truck just outside early, the rest of the demolition crew would not be there for a few hours, which to his great enjoyment left him plenty of time to poke around.

He grabbed the key for the front door of the manner from the center fold of the car and excitedly hurried u the front steps and unlocked the door pushing it open until the smell of forty years of vacancy hit his nostrils. It smelled like rot and stagnant air. The smell made him pull his shirt over his nose while he walked through the house.

A layer of dust at least half an inch thick was caked on every surface. Although surprisingly the only door that looked relatively well preserved was the door leading down to the cellar. He fingered through the keys on the ring until he found the one to the cellar and opened it up. A horrible funk like the door had not been opened in a hundred years slapped him in the nose making him gag and cough before regaining himself.

Heading down the steps into the basement it was quite dark so Jacob took his time getting to the bottom and feeling for a light string or switch. Flick his hand finally found a switch and the whole room lit up giving him a good look at everything. Jacob was taken back, there were jars filled with small creatures preserved in liquid, note scattered around on the tables and work benches.

He started reading through some of the old note. Articles about parasites that looked a lot like a leech crossed with a centipede. They changing ones form and nest in their bodies to feed on the signals that bring the sensation of pleasure in the hosts body while amplifying the buried feelings of lust and need in the subject to do so. Reading this Jacob finds himself a little disgusted reading about the various ways the creature gets into the body through the anus, the mouth or even in a less "painless" way through the subjects urethra.

A loud smash from behind him makes him whirl around. One of the glass jars on the shelf had fallen and broken on the floor making a mess everywhere. There was one problem though...whatever was inside wasn't among the glass and slimy mucus he was cleaning up with a dirty old towel which made him nervous. Quickly he started looking under everything for the little thing but the longer he went without finding it the more scared he grew.

Standing up he looked around the room and there it was, sitting on the pile of notes he was just reading looking at him reared up a bit. Jacob reached for a tool next to him but it was too late, like a flash of lightning the little thing was on him and prying open his mouth and slid right down his throat wiggling and writhing on the way down his gullet making him gasp and choke for air until it felt like it settled into his stomach.

Jacob lay there for about ten minutes gasping for breath until a sudden burst of pain ran through his body. His hand locked up and to his horror looking at it, it had begun to twist unto what looked like a mix between his hand and a dogs paw. Black pads now ran from the palms of his hands to the tips of his fingers That now ended in neat little claws. Jacob started crying out in pain as his legs buckled and cracked to look like the legs of an anthropomorphic canine to his shock they were already covered in a rather thick layer of brownish black fur.

The fur crept up his slowly growing and muscled body as it ripped out of his pants, shirt and finally underpants. He was left naked on the floor writhing and screaming as his body changes and twists to the parasites whims. Finally it reached his head changing its shape to a canine elongating his face into a muzzle filled with sharp teeth and a nose that could smell out anything. Where his pink fleshy human cock hung a huge red veiny cock stood erect and throbbing tapered at the point just like a dogs and dripping with not just cum but with tinier wiggling worms of the parasite drip dropping out and crawling across the floor.

Jacob while enthralled with his new cock staggered over to the broken skin and wiped the dirt away from the mirror and looked at himself, he was now a tall anthropomorphic German Shepard. His tail tail hanging behind him wagged slightly and his ears twitched at every sound, but what demanded attention more then anything was his dripping red doggy cock, which he let out a low growl of lust at and rubbed his newly changed appendage eagerly spilling more and more of his tainted parasite brimming pre onto the basement floor.

Slam someone has close a car door outside the house. Giving a quick sniff he could tell it was Timothy. One of the many workers under his employ. The scent of timothy was making him harder which was odd, hed never been into men but his instinct told him to pin Tim down when he got into the house and force his tainted seed into the skinny mans bowels to make him just like him. "yes~" he thought "must make more" he whined slinking up the steps to hid in the boarder up and dark house.

Timothy grabbed up all his tools and his hard hat. He thought it was a little weird that his bosses car was here but he was nowhere to be found. The front door was wide open to the house. Tim figured he must have been inside working already or waiting for everyone to show up. Slowly time wandered inside and put his tools down and slipped his hat on.

Quickly like a flash the front door shut on him and he was left in the dark and a bit startled. Tim tried to pry open the door but when he reached for the handle his hand found a huge furry thing clamped over the handle which made him pull back as he heard a growl "Tim...you are late...now I will have to punish you" the voice growled swiping at him and tearing the cotton T-shirt right off him before he ran off into the house "J-Jacob, quit fuckin around this ain't funny!" he runs up the stairs into one of the old bedrooms and hides inside having chosen it only because it was well lit.

he his behind an old wardrobe and tried to catch his breath. But suddenly the thing was tossed aside and he was face to face with a monster as far as he was concerned. A giant canine like beast staring down at him with a crooked grin "mmm Tim, you smell amazing...i want to share this wonderful gift with you" Jacob crooned stroking himself in Tim's face dripping the little worms onto him making him freak out and throw them off and run toward the door.

Before he could even get to the door Tim was slammed down to the floor by Jacob and had his pants and boxers ripped clean off him before his rump was met by a wet poking nose that pressed against his ring of puckered muscle before several long slow laps were dragged across his tight hole making him bit his lip humiliated by the position he was in...being violated like this by some monster no less.

Jacob sat up and came up behind him and rubbed the fat red cock against his tight little ass with a growl of bestial pleasure as he pressed the tip against his ring of tight muscle that was eased up using his tongue and lubricated by his saliva and even further by his wormy, slick, pre cum. Tim started to cry a bit from how painful this was the size of the best penetrating him was remarkable but it was stretching him to the limit with just the initial entry of its cock. He grit his teeth and sobbed into the dust covered floor as the last of the monsters cock was stuck into him up to the knot. He could already feel the tiny worms inside him wiggling and squirming making this an oddly arousing experience.

Jacob grinned pulling back and beginning to thrust inside him spewing more of his altered fluids into the poor man below him along with more of the parasites that seemed to be wiggling their way through his bowels making him cry out and squirm below the monster.

Jacob was in heaven, the tightness of Tim's ass around his cock and the wiggling of the parasites around his cock were growing to be too much for him. He was getting close and fast!. Tim made one more desperate plea "p-please n-no don't do this" which only served to push Jacob over the edge drive harder into him ramming the HUGE knot into the tiny man and unleash a torrent of seed as well as one larger parasite into him crawling right out of Jacob's cock into Tim while the pleasure of orgasm masked the pain of passing the larger thing out of his urethra.

Jacobs seed seemed never ending even as Tim's own changes started to take over and make him scream and cry in agony, not making it any easier was the fact that he and Jacob were still linked together by the knot. Tims fur began to come in, white with small patches of black here and there making Jacob grin. "i cant wait for the rest of the guys to arrive" he crooned excitedly into Tim's ear and pulled his knot free leaving him free to watch as Tim's changes filled out more of his body.