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Cass was a well put together feline in her mid 30s, she had always wanted kids, more so she wanted to be pregnant, swollen with growing life, she wanted to be a mother but she was unable, a unfortunate side of her genetics left her infertile and unable to conceive kids of her own.

One day through a friend of a friend, she heard about a new program a local clinic was trialing out to restore fertility to those who lost it. She immediately gave them a call and got signed up.

Within a week she got a call and was invited to the clinic to begin her impregnation journey.

Cass arrived at the clinic and got checked in, They lead her down a series of halls to a large room with an exam table in the middle.

She stripped down as instructed and laid on the table, the cold papery covering crinkling beneath her.

The nurse administered a few shots and had her swallow some pills before leaving her alone in the room for a while.

Her belly started to feel tingly and warm as the drugs took effect, her breasts slowly swelled and droplets of milk began to form on her nipples.

When the nurse came back in she reassured Cass that the side effects are normal and expected but before they can breed her they need to test her capacity, ensure its safe for their breeders to copulate. She was pushing a wheelchair with a very well endowed rat. She guessed he must have been a breeder at one point given his size. The rat looked out fo breath, his tongue lolling out of his mouth and his eyes glossing over. He wasn’t restrained in the chair at all but certainly would have a hard time moving on his own given the size of his balls which were so large they filled his lap and hung between his legs each nearly as big as his body. His cock was an impressive length and wide too, it was sheathed in what looked to be a artificial vagina with a collection hose attached. The hoses looked to be connected to a set of nearly full tanks on the back of the chair. A stream of clear fluid constantly flowed from his cock and into the tanks.

This is one of our introduction units, they are not allowed to cum and are always held on edge constantly produce one of our most potent elasticity serums. The nurse continued discussing details about the treatment while Cass zoned out, eyes fixated on the rat’s balls, Imagining what it would be like to be knocked up by him, filled to the brim with his kits.

Are you ready? The nurse said snapping her out of her daydream.

Uhh yes, im ready. She stammered.

The nurse reached behind the chair and pulled out a dildo with a tube attached to the milking and unceremoniously worked it into Cass’s exposed pussy. She flipped a lever on the chair connecting her tube directly to the collection apparatus on the rat. The rat shifted in his chair as his production picked up as the milking apparatus sprung to life. She felt the warm clear fluid begin to enter her womb. A constant stream filling her like a garden hose. She fantasized about the rat some more, excited to be filled by him at all even if it was just precum. The rat squirmed in his chair as the milking apparatus worked over him, keeping him on the edge, but never allowing him to cum. With each ruined orgasm she was filled with another surge of clear precum until she looked full term pregnant, her belly jutted out on top of her, the rapid filling and stretching of her fur didn’t hurt, in fact it felt amazing. Another couple gallons later the nurse came back over and flipped the valve. The rat’s flow was redirected back to the tanks once again and the milking apparatus was shut off. She removed the dildo and sucked it clean. Another nurse came in and wheeled the rat out the door.

Cass was left to slowly drain out on the table as they provided no way for her to keep the fluid inside her. Over the next hour she continued to fantasize about the rat boy, feeling his precum leak out of her and onto the floor. A nurse worked to mop up occasionally before announcing she’s ready and the breeder will be arriving shortly, He’s really good with his tongue, she lead on as she walked out of the room. Left to her own thoughts once again, she grew more and more excited by the thought of finally becoming a mother.

A little while later the door opened and a male wolf was standing in the doorway. As the male approached her she eyed him up, placing him into her fantasy, playfully bit her lip and spread her legs, pussy on full display below her still giant swollen belly. His balls, heavy orbs hanging down to his knees forcing him to walk slowly with a waddle. His cock slowly emerging from his sheath as he took in the sight of Cass, her voluptuous curves, her still giant belly, and her huge swollen breasts topped with big pink nipples that were leaking a stream of milk down her fur.

He wasted no time getting hands on, walking up between her legs he placed his hands on her belly tracing out the patterns in her fur as he made his way up her belly and under her breasts, lifting them, feeling their heft heavy with milk. He leaned forward and started kissing her taught belly over and over again as he traveled south one kiss at a time following the curvature until his kisses met her vulva, a single lick is all it took for Cass to shudder and drool further coating her pussy in her natural lubricant.

His hands wandered down between her legs as he knelt on the floor, leveling himself with her opening. His textured tongue pressing into her slit coating itself in her sweet fluid as he grabbed handfuls of her thigh flesh and squeezed, deeply massaging her muscles. Cass, unable to resist, grabbed onto her breasts, and squeezed spraying milk all over, kneading her swollen orbs, coaxing more and more milk out. She lifted a breast and brought her nipple to her mouth and began to suck and draw mouthfuls of the sweet milk into her mouth swallowing down gulp after gulp.

As his tongue explored her depths he worked to uncover her thumb sized clit, rubbing his nose into her hood until he felt it swelling up and emerging from its protective folds. Electric shocks of pleasure shot up her spine as he made contact with her most sensitive part. She involuntarily thrust her hips and shuddered in ecstasy forcing his snout deep into her pussy and wetting his entire face in her juices, this only seemed to encourage him to continue though as he continued to suck on her clit and lick up her fluids prompting orgasm after orgasm gushing more sweet nectar into his mouth over the next hour.

When he determined she was worn out to his satisfaction he gave her one last lick and stood up, his face and body soaked in her fluids and dripping onto the floor below. He patted his belly, a slight paunch had formed from all the cum he drank. He grabbed onto her hips and pulled himself close shoving his entire length into her sopping pussy in one quick go. He vigorously pounded his entire length in and out of her over and over, their hips colliding with a wet *Plap* *Plap* *Plap* pulling back a thick web of goo stringing between their fur with each slap. Cass spat out her reddened nipple spilling some more milk in the process and gasped at the sudden intrusion of the large breeding rod.

*Plap* *Plap* *Plap* his hands moved up to the sides of her belly, wobbling and sloshing full of cum atop her frame with every crash of their hips. He massaged her fur, feeling the hot fluid swirling around inside of her. His hands wandered around until he located a large fist sized bump under the skin on either side of her belly, caressing and rubbing them. Cass knew immediately what he was rubbing, her ovaries, enlarged by her overactive desire to be a mother and presumably the drugs from earlier, each filled with untold numbers of eggs and powerfully over sized and making more with each passing second. She put her hands on his, pressing them harder into her belly, clawing and moaning at him to pump her full, bloat her with cum. He thrust in one final time, locking their hips together, bellies touching as he leaned over and squeezed the bumps releasing a flood of eggs into her womb from both sides. A moment her womb was blasted with a fresh load of cum. His balls hiked up and clenched as they pumped the thick tar like hyper dense sperm into her womb. With every blast of cum he re-gripped and squeezed her ovaries once again making sure they were well soaked in cum and released every egg they had. Larger and larger her belly swelled as he pumped his load into her far exceeding what she thought was possible, she was easily more cum then lady, her womb stretched huge like she swallowed a person whole. She loved the feeling, she wanted to bigger, fuller, she didn’t want him to stop but eventually his flow tapered off as he wore out, his professional breeder balls drained into her.

He pulled out with a wet pop leaving her pussy gaping open and leaking cum. She started to sit up as a large blob of cum flushed out of her onto the floor. She laid back down as the male left the room, not wanting to move much or risk losing more of her stored cum but even her best efforts and squeezing her legs together she could not manage to fully stop the flow and her belly slowly shrunk until she looked pregnant with a single litter once again. She continued to lay there, feeling her womb pulse and her pussy throb from the pounding. She was tired from the many many orgasms she processed over the last hour but a small part of her still wished he could remain stuffed full of cum forever, it was a feeling she would never forget.

An hour of rest later a nurse came in and woke her up, Good news, it looks like the impregnation was a success, Feel free to clean up and walk yourself out as I finish cleaning up in here, there is a bathroom down the hall on the left. You will receive a call in a couple days to see how things are going.

Cass stood up, her legs weak and adjusting to her new center of gravity, her womb was still very full even though most of it leaked out already, her belly the size of a basketball. She started to get dressed before realizing there was no way she would fit in her old clothes anymore and skipped it entirely.

She thanked the nurse and waddled her way out of the room and down the hallway. Which way was the bathroom? She continued to wander the nondescript hallways certain she was lost but couldn’t remember how to get back so she pressed on. She came to a room labeled storage, the door was ajar and she peeked her head in. The room was dark with a few dim lights illuminating just enough to see. As she pushed the door open further, lights started to turn on one row at a time with a heavy thunk echoing from an electrical panel far away.

Along the wall she noticed a row of wheelchairs, at least a dozen, each one holding a rat similar to the one she met earlier. As the lights shone down on them they stirred from their slumber, glancing over at the naked feline standing before them.

Excited, she closed the door behind her and locked it. As much as she enjoyed the wolf breeder, she couldn’t get the thought of the rat boy and his monstrously pent up nuts out of her head. She ran over to the first rat who seemed to perk up as she approached him, he shuddered as a gush of clear fluid forced its way out of his cock and down the milking tubes to the tanks on his chair, most of the rats’ tanks were either full or overflowing onto the floor a stream flowing into a drain nearby. She removed the device covering the rats cock, it was tightly sealed around the base of his balls, likely cutting off his ability to cum. His cock stood tall and rock solid as she gently touched the sensitive flesh, he flinched, not used to feeling the touch of another. Still oozing a constant stream of precum now down into his lap. She put a hand on his balls, they were almost as hard as his cock, taught and bloated, unable to release his load in who knows how long. She could feel the hot swirling, legions of pent up sperm waiting to release, poor thing.

Cass remembered the stretching, the weight, the feeling of being bloated with cum. These rats felt like prisoners to her, she wanted to help. She turned around and backed her butt up to the front of the chair, the rat obliged by aligning his cock with her pussy as she backed up onto it, swallowing its length in its entirety until she was sitting in his lap. She could feel the rat tensing up, his cock pulsing in her vagina, it felt soo good to be filled with another cock again. She ground her hips into his, and put her hands on her belly, rubbing her bump, feeling the fluid swell and flow as she bounced on his rod. It didn’t take long until she felt the unmistakable surge of warmth in her womb as the rat started to cum. The first load of hyper virile concrete thick sperm worked its way up his shaft and blasted into her womb. She could feel the impact as if she got punched in the stomach but quickly turned to pleasure as the familiar stretching feeling rushed back to her. Punch after punch of his dense cum jammed inside her. The time between pumps decreasing as he unloaded his tar into her belly. Gallon after gallon she swelled bigger and bigger until she was filled to the brim, her belly easily several feet across. She held on as long as she could, just as the rat finished pumping her full she tipped forward under the weight of her own belly and slid off of his cock.

Quickly now, Cass murmured to herself, no time to loose, she stood up, clenching her vagina as tight as she could to prevent it from leaking out. Barely able to stand she waddled her way over to the next rat and took off his milking apparatus all the same. With help from the rat she was able to lay on her belly in front of him while he leaned forward off his chair and impaled his cock into her presented pussy. With almost no delay, he began to cum, hard and fast, huge ropes of thick cum pumping into her, sinking in the pool of lesser cum, More and more the rat continued to unload into her. Her belly stretching further and further as she became more belly then cat, more cum then flesh. Every throb of his cock was pure ecstasy. Just how much more pregnant would be become. She certainly wasn’t leaving any time soon anymore.

Her jam packed womb creaking under the pressure but she wanted more. As the rat finished emptying his balls into her and climbed back into his chair, another rat was already ready to take his place, invigorated by the prospect of being able to cum finally, the rats started to remove their own gear and line up behind her. As the rat pulled out of her, the next one slid in its place moments later. She was part of a train of hyper balled rats emptying themselves into her, she couldn’t ask for a better time. Rat after rat unloaded into her, quickly swelling her aching belly to the size of a truck but she didn’t care, make me bigger, fill me more she moaned at the rats. Don’t stop until every one of your balls is emptied inside of me and don’t spill a drop!

The rats continued to rail her, over and over, when the rats each had a go, her womb was aching in a pleasurable agony as she tried to comprehend how she had the equivalent of a house full of cum in her right now. A swirling bubbling cauldron of eggs, sperm and new life. She toppled shelves and furniture, crushed boxes and anything else in her way as she grew. She didn’t care it felt too good. She never wanted it to end. The rats, now free, continued to pump virile load after load into her far into the next day, not leaving her without a constantly leaking or cum pumping cock in her for more then a few moments at a time. Cass rolled her eyes back as she experienced a flood of pure joy and satisfaction.

Just how long would it be until they were caught?