Lab Rat: A Hucow Story

“Lucy, can you hear us?”

“Fuck you, asshole.”

“Good then, we’re coming through loud and clear. Go on a head Mr. Albright.”

Out of the corner of her eye, Lucy could see the men gathered around the small microphone on the opposite side of the glass. She recognized only one, the one that had been speaking. Dr. Adam Holt, the man who had been experimenting on her for a month. Beside him stood a nervous man in a cheap suit. He stepped to the microphone, “Lucy, it’s Herman. I was your trial lawyer, do you remember?”

“What do you want?” she hissed. The restraints on the table cut into her wrists and ankles. She’d gotten used to being tied down after so many months in captivity, but it made her hate it nonetheless. She’d also grown accustomed to being nude. Early on in their experiments, the various researchers had kept her in a surgical gown, but Dr. Holt had put a stop to that. He told them to treat her like any other lab rat. Her lithe form twisted slightly on the padded table as she craned her neck to look at Herman. She wondered if he’d wanted to come just to get a good look at her. She’d seen him salivating over her through the trial. The thought of taking payment by pussy had surely crossed his mind. Now here she was, splayed out for all to see. Her body had not faired well during her sentence. She’d lost weight and grown gaunt, despite the researchers attempts to keep her healthy. Her breasts lay flat and sagging on her chest, their perkiness another victim of the sudden weight loss. They’d kept her shaved for some reason that Lucy had not worked out and she imagined Herman craning his neck to see her naked twat. She heard the shuffling of paper against the microphone.

“I have to read this,” Herman continued. “Uh, Dr. Holt and the attending physicians can sign as witnesses, I think. I’ve never done this part before.”

“That’s perfectly fine, Mr. Albright, please proceed.” Holt’s voice could calm a raging steer.

Herman cleared his throat. “By decree of the 9th Court, Grace Lucille Jacobson, hereafter referred to as the Aforementioned, has been found guilty of espionage, a crime tantamount to treason against the state. Further, by agreement of this court’s panel, the Aforementioned has been sentenced to a forfeit of life. Pursuant to the Humane Treatment Clause and the appeal of the Aforementioned, this sentence shall be enacted not by surrender of life, but by committal of life to research. In this action, may the crimes of the Aforementioned be absolved in pursuit of greater knowledge and may mercy be shown. In conjunction with court appointed program supervisors, the Aforementioned has been selected for participation in genetic manipulation therapy to be preformed on this, the fifth day of August. The undersigned shall bear witness and provide testimony as such if called upon — oh, that’s where I’m supposed to stop and continue, let’s see, ah — having heard the proclamation of the court, do you Grace Lucille Jacobson, understand and consent to these actions?”

Lucy gritted her teeth. When they caught her, she was washing cum out of her pussy in a hotel bathroom. For months, she’d been working a government contractor as part of a deal to secure new tech plans to sell on the black market. The contractor flipped on her when the Feds caught him. She didn’t blame him for that. The thing that made her hate him was that he fucked her before calling in the Feds. The deal was done and she could have walked, but she wanted to retain the asset and a quick fuck was the best way to keep him happy. Once his dick was limp, he buzzed the cops. Two years later, a guilty sentence came down, and she had no intention of rotting in a cell or being executed. The human research option at least had good odds. Some people lived on in relative comfort for the rest of their lives. Others died feeling as though bleach had replaced the blood in their veins. Lucy had taken her chances. “I understand.”

She heard the nervous rush of breath from Herman as he plucked up his courage to speak. Instead, Holt spoke, “You have to say you consent.”

He was the down side. He treated her like an animal. She could hear the eagerness for this final hurdle to his experiments to be removed. “Fine, I understand and consent.” The microphone clicked off. Craning her neck again, she saw Herman shuffling papers as the doctors all signed. In the end, they shook the small lawyer’s hand and clapped him on the back as he was ushered out of the room. The lab door opened, and Dr. Holt appeared by her side. “One guinea pig all signed over?” Lucy asked, derision in her voice.

Dr. Holt smiled down at her as his hand started to work, hooking up IVs and attaching sensors to her naked body. “I do prefer working with animals, you know. They can’t speak. Rarely a need to gag them.” Lucy scowled at him, but knew better than to argue. “We’ve been prepping you for today for quite some time. Usually, I don’t bother sharing our work with the test subject, but in your case I think it will be fun to let you know. In a moment, these IVs will introduce a serum into your blood that will activate latent genetic code in your body. Through that, we hope to alter your body in a manner that will be marketable. Many of these research projects are dedicated to solving disease or curing chronic pain or even prolonging life. Not this one. This project is a money making venture, more or less. And you are destined to be our cash cow. I’m sure you’re aware of the recent forays into genetically altering humans to satisfy certain sexual fetishes. Isn’t that right?”

“I once saw a guy with a fucking tail if that’s what you mean,” Lucy hissed. He liked to ask questions as he gave her a shot. Perhaps it was some baked in bedside manner left over from when he hadn’t been so cruel.

“Yes, crude attempts. A man with a tail was considered a success. The failures were much more gruesome. Those scientists did not have the advantage of government funding. We’ve perfected the process, and we’re glad to use it on a human for the first time today.”

“What the fuck? You’re turning me into some kind of hybrid monster?”

“If only we could do something about that mouth of yours,” Holt tutted. “And no, we’ve reigned in the more animalistic features in favor of enhancing qualities the majority of humans already find appealing. I think you’ll enjoy the results. Shall we begin?”

A machine whirred on next to her. Monitors all around flared to life. The technicians moved with an almost choreographed grace. All the while, Dr. Holt hovered over her reading charts, checking on readouts, and staring longingly at the bizarre machine beside them. It resembled a dialysis machine in some regards and some other nefarious contraption in others. Lucy didn’t worry, at first. She loathed her captors, but on a lower level of her consciousness she believed a just world had brought her to her circumstances. The machine spluttered. One of the tubes running out of it emitted a dark black fluid that curled slowly towards the needle embedded in her veins. She tried to maintain her calm, not wanting to let Holt see her squirm. The fluid reached the needle, and her veins momentarily darkened as the chemicals mixed with her blood.

“Excellent, that was the first major hurdle,” Holt said, to himself rather than anyone else. “There is a fairly high chance that the host will reject the transfusion. Catalyst should start any second now.”

Lucy did not have time to process what he’d said. Outward from the point of the needle, she felt a tingling sensation, as though her arm were falling asleep. It radiated out through her entire body until every inch of her sizzled with a half numbness. The seconds ticked by, and the machine whirred. A wave of pain rocked through Lucy’s body, as though a line of needles jabbed in and out of her over and over again in a wave. As soon as it began, it stopped. She pulled hard against her restraints while choking back a laugh of relief. The technicians looked on with concern. A growing heat in her skin made Lucy follow their gaze. Her body was changing. Her skin had grown pale and pocked during her confinement, but now, as microscopic ripples coursed over her body, the marks faded and the skin grew firm and lustrous with a deeper hue. Her gaunt figure filled out. The caved in stomach grew into a taut belly backed by a hard core of muscle. She felt strength return to her limbs as her muscles rejuvenated. Though she could not see it, even her hair took on a greater sheen, and the grey in her eyes brighten to sky blue.

“Looks like you gave me the potion of youth, doc,” she said, unable to repress the euphoria that accompanied the changes. Holt did not respond, but kept his eyes on the monitors. Many in the room gasped. Lucy’s breasts suddenly swelled. Delirious with endorphins, she could only grin at the size of her tits ballooning up from her chest as though inflated by an invisible pump. Holt looked at the growing mammaries with skepticism. Without prelude, he brought his hand up and squeezed the growing flesh. Lucy’s hips bucked forward, and she pulled against the restraints with all her might as her body twisted in pleasure. Even with the glove between them, the feeling of someone touching her hypersensitive skin drove her wild. He cupped her breast and squeezed hard, judging the consistency and weight. He recited out some numbers and the technicians snapped out of their fascination long enough to make notes.

Lucy had almost forgotten about the others in the room. Her body vibrated from head to toe. She knew something was changing about her breasts, but she couldn’t think clearly enough to be anything other than excited. More hands prodded her body, feeling and examining. Yet no one was paying attention to the one thing that she really needed. Her pussy quivered and dripped with arousal. She could feel the slight movements of air as the techs walked around, but more than anything she wanted to feel fingers against her pussy lips. She didn’t know, but Holt’s attention had turned to her genitals. He regarded the swollen, pink lips with curiosity. “Subject’s labia has become engorged, showing signs of tissue development similar to breasts.” He reached out and took her pussy lips in between his fingers, running them along her slit as he felt the soft folds. Lucy groaned and tried maddeningly to push her hips forward. She wanted to feel the gloved fingers slip into her. Anything to sate the mad desire building inside of her. “Tissue is somewhat more resilient and thicker. Highly lubricated and responds to mild stimulus. Clitoris has enlarged in proportion.” He broke his professional demeanor for a moment as he slid his middle two fingers slowly into Lucy’s pussy. “How does that feel, Lucy? Do you like having my fingers in your cunt?”

Rage billowed up inside of her, but it was pushed aside by her arousal. She was too horny to resist his taunts and only managed to mutter a quiet, “Yes.” He pulled out immediately and replaced his glove with a fresh one as he continued examining her body.

“Subject’s body has taken on the desired traits. Hip measurements have increased to thirty eight inches. Buttocks have increased in muscle mass and fat deposits have increased almost two to one with that. Breast tissue has quadrupled. Simple tactile tests indicate that all sexually active areas have increased in activity, particularly around the breasts. Hang on, what’s this?” Holt’s eyes had noticed something pooling around Lucy’s nipple. He grabbed her breast once more and squeezed. Milk oozed out and dribbled down the growing valley of her tits. Lucy sighed with relief as some of the pressure in her chest abated. “Take a sample. I want that analyzed as quickly as possible.”

“Please…please,” Lucy begged.

“What’s that?” Holt asked, bemused.

“Please, milk me…” Lucy whimpered.

Holt laughed. “Not so tough now, are you? She’s done. Residual effects will take place over the next few hours. Get that milk analyzed and move her to the holding room. Keep her monitored until I’m done with the lawyer.” He leaned down to whisper in her ear. “You’re just a fat titted cow now, Lucy. If they let me keep you long enough, I’ll teach you to moo for me.”

Lucy tried to move her cheek closer to his. She wanted to feel his skin against her. Anything was better than the agony of not being touched. Yet he pulled away and the unfamiliar hands started prepping her to be moved.

Lucy regained consciousness in a room different from the cell she’d been kept in until the procedure. The new space was more akin to a hospital room than a prison, though she remained chained to the bed and a guard loitered outside the door. She had more freedom of movement than the exam table. They’d not clothed her, only covered her with a blanket. Electrodes dotted her skin, running to the monitors surrounding the bed. Sitting up, she felt the weight of her chest launch forward and recalled the effects of the procedure. Immediately, she jerked her hand up to feel her new tits. One wrist caught in the restraint, but the other was free to hold her full new tits. She shuddered as she squeezed the soft flesh. They were enormous. She’d had a decent pair that she’d used to every advantage that she could think of, but these were on a whole new level. They were full and firm as they were laden with milk, but as she leaned forward, they softened a bit. Her nipples had grown too, changing from short flat nubs to slightly longer rounded buds. She tentatively squeezed and pulled and felt the rush as her milk flowed out.

Grunting from the pleasure, yet not wanting to soil her bed with milk, she looked around for something to hold the creamy fluid in. She grabbed a plastic cup from beside the bed and positioned it below her nipple, holding it in place with the base of her hand while her fingers dexterously pulled and teased at the nub. It felt divine. She could only imagine the feeling of strong, muscular hands groping her tits. A man could get behind her and still reach her milk laden dugs, milking her while fucking her like the cow she’d become. The milk hissed as it splattered against the plastic in the cup. The old resentments still simmered inside of her. Despite the joyous feelings in her body, she’d still been turned into a mewling cow. Holt was to blame. Eventually she would have a chance to ruin him, and she would take it. The milk stopped hitting the plastic as it started to pool in the cup. She estimated it to already be four ounces, and she was struggling to milk herself. If someone else did it, she had no doubt that she could give much more.

The door opened, and the guard lumbered in. He was a big man with small eyes, but still rather handsome. Lucy didn’t recognize him. “What the fuck are you doing? You’re not supposed to be awake. How’d you get out of the cuff?”

“Fuck you, pig,” anger flared in Lucy. She realized her hand was not free intentionally. The bonds must have been improperly secured, and she’d wriggled out of them in her sleep. The guard moved to stop her and without thinking, she used the only thing she had as a distraction. The cup of milk splashed in the guards face as he neared the bed, bringing him to a halt. Both the transformed woman, and the guard stared at the cup as it hit the ground. The milk dripped from the man’s face. As Lucy looked up at him, prepared to face the wrath of an insulted man, she saw he was licking his lips. The man’s body stood rigid, as though she’d stunned him.

“What was that?” he asked, his voice trembling as urges started to war inside of him.

Lucy didn’t understand and expected a trap. “Some of my new milk, pig, how does it taste?”

The man’s eyes roved up her body and focused on the swollen teats. “Delicious,” he whispered with a pained grunt.

Lucy realized her opportunity. “More where that came from, Pig.” She leaned back and let her breasts wobble on her chest. “Just need to uncuff me, big boy.”

The guard wavered. “I’m…married. Shouldn’t even look at you…but that, taste…”

Lucy jutted her chest out. If she could get him to let her loose, she could slip by him and make a break for it. She brought her hand up and squeezed her breast hard causing a stream of milk to spray out onto her stomach. “Come on then, I bet you’re thirsty.”

The guard couldn’t resist. He opened his mouth wide and took her spurting nipple into his mouth. He tried to focus on his wife, but an overwhelming need drove him onto Lucy’s body. She, too, underestimated the draw of her milk. As the man’s mouth clamped onto her swollen teat, she shivered with pleasure. His lips slid around her nipple as he started to suck. As the first jet of milk sprayed into his mouth, she knew something powerful was at play. The man groaned and sucked harder. Milk rushed out of her breasts faster and faster, pouring into his mouth as he gulped it down. Lucy writhed underneath his hungry mouth. Her hand wrapped around the back of his head, pulling him into her chest, wanting him to devour as much of her rich cream as possible. After almost a minute of sucking, he released the suction with enough force to cause a spray of milk.

The guard staggered back, clutching his stomach. He dropped to his knees and groaned in pain. Alarmed, Lucy sat up in the bed and looked at the door expecting others to come flooding in at any moment. The guard tore at his clothes. Lucy soon saw why. His skin was rippling and changing, much like hers had earlier, but much faster and more violently. Muscle bulged as his shirt ripped up the back and the tatters fell away. He struggled to pull down his pants as his thighs bulged. As he stripped down, Lucy’s mouth began to water. This was the kind of male she was built for. A hulking mass of powerful muscle that could fuck her properly, if only he had the equipment to match. His pants dropped away, and she felt a twinge of desire in her pussy. Bulging in his tight briefs, tighter than they had been when his wife saw him put them on that morning, was a cock that bordered on inhuman. With a grunt, he pulled down the constraining underwear and let the monstrous cock swing free. Beneath his length, a pair of heavy balls drooped in a pouch that grew leathery and thick as she watched. With her free hand, she slipped her fingers into her juicy pussy and watched. Clear fluid oozed from the tip of the guards cock as he looked down in fascinated horror at his own body. “What…what happened to me?” He looked up and saw Lucy. Her heavy breasts teetered on her chest, but now she’d spread her legs wide and the engorged pussy lips called to the man’s base instincts. He started to climb on the bed with her.

Lucy knew she needed to get out of the room before anyone else showed up. Her milk had changed a man into a monster. His weight loomed over her as his distinct musk filled her lungs. She shivered as her legs wrapped around him. The man seemed bewildered, but knew his role. His cock wedged between her puffy lips. Lucy couldn’t resist. She grabbed his bare ass, admiring the strong muscles, and pulled him into her. The thick cock slid in with no resistance. Her walls stretched gladly to accommodate his hot cock, and he moaned low as her warmth enveloped him. They paused for a moment, his thick cock sheathed inside of her, both understanding that they were now meant for each other. Her hand pulled at the other restraint and drew his attention. With one easy motion, he ripped the cuff open. He started to thrust into her slowly, but she stopped him. “No, like the cow I am,” she said.

Pushing him back, she rolled over onto her knees on the bed, hoping it would continue to support their weight. Her breasts swung underneath her as she positioned herself, already feeling the return of her milk. As she raised her ass, showing off its perfect shape, the guard grabbed hold of her hips and pushed against her pussy with eager energy. She sighed as he slipped back inside of her, his hands roving over her enlarged ass. The guard had never had sex with anyone other than his wife, but her body seemed like a distant memory in comparison to the goddess currently impaled on his cock. He started to thrust into her, roughly, and was pleased to hear her moan with satisfaction. Lucy met each stroke by rocking back into the guard. Her eyes fell on the name tag on the ground, Craig. She looked over her shoulder, “Fuck me with that fat cock, Craig. Make me cum, please.”

He needed no further encouragement. He hunched forward for better leverage as he started to hump into her as hard and fast as he could. The entire bed trembled as his cock slid into her with blazing speed. His balls swung beneath them in rhythm with her swollen tits. They were just as heavy with cum as her breasts were with milk. Looking underneath them, Lucy saw the heavy balls and fantasized about her mouth filling up with his spunk. As his cock started to twitch inside of her, she knew that would have to wait. The first eruption caught her off guard. His seed shot deep inside of her as he pushed hard against her ass. Lucy shivered and went still. Then the second gout of cum splashed inside of her and her body exploded with pleasure. His balls emptied inside of her again and again. Some time during the middle of her orgasms, she realized she’d started to leak once more. Milk dribbled out onto the bed beneath her, slightly gushing as each wave of orgasm roared through her body.

The fervor of their mating subsided. Craig stepped back, his cock resentfully slipping out of her pussy. Lucy climbed off the bed, shaky in her footing, but growing more confident by the second. She quickly formulated a plan. “Alright, big boy, ready to have some real fun?”

Craig knew he should get help. He should call his wife. He should do everything in his power to resist the woman in front of him. Yet he couldn’t forget the taste of her milk or the feel of her pussy. Despite the bizarre circumstances, he had the body of a god thanks to her. If she did it to him, she could do it to others. “What kind of fun?” he asked, his mind wandering with possibilities.

“I think we’re going to pay Dr. Holt a little visit.”

Dr. Holt left work with a sour feeling in his stomach. His lab had descended into chaos. Federal agents swarmed the place looking for the escaped prisoner. A guard had helped her slip out, and they’d vanished. Lucy’s old profession had its tricks. She would string along Craig for a while until she left him bleeding out in a gutter somewhere. Holt only lamented the loss of his work. The milk samples they’d taken had been teeming with transmutagenic bodies. The later the sample, the stronger the concentration. His foolish assistants hadn’t thought to procure anything new while he was busy with paperwork. If he survived the purge from the higher ups, he would make sure that none of them did. With nothing left to do, he’d slipped out after spending too long answering questions from the authorities. A few hours at home would quiet his mind, and he could return to work with a fresh perspective.

As he arrived at his home, he saw his step-daughter’s car in the drive. She was home from college and too often had friends over while he was at work. Such seemed to be the case at the moment as well. Behind his wife’s car, an unfamiliar sedan sat in his driveway. Grumbling about not being able to get in the garage, he parked on the street, grabbed his things, and headed inside.

“Welcome home, Dr. Holt,” said a cold voice from his living room. Before he could react, a behemoth of a man wrapped him in a bear hug. He fought, but it was nothing to the monster. Craig carried him over to a chair and bound him while the woman’s voice laughed. Once he was safely tied up, Craig dragged the chair over to the living room and turned it so that Dr. Holt could see the entire sight.

Lucy sat on the edge of the couch, still completely naked. Her breasts were larger than he’d last seen them. Attached to them were pumps which streamed milk into bottles. She’d already stacked up six on the coffee table and more were being filled as Holt watched. It alarmed and angered him, but that was nothing compared to what was beside her. He tried to look away, but couldn’t. On their hands and knees between him and Lucy were his wife and step-daughter. They looked over at him with a feverish hunger while wiggling their naked asses in the air behind them. They had been changed, he realized, just like Lucy. His compassion once again moved aside for his scientific curiosity. His wife’s form had changed from a dour, middle-aged woman, to a youthful big breasted beauty, much like Lucy. His step-daughter, who had already been youthful and vibrant, had suffered even more from the transformation. Her breasts looked painfully large. Lucy had attached pumps to both of them and was quickly filling up other bottles.

“You know, Doc, I came here to teach you a lesson. I thought to myself, I’ll find his family and turn them into stupid cows like me. So, look here, this is the product of all you’ve worked for. Your wife would break her arm just to suck a cock. Any cock. Your step-daughter too. She was already an expert cock sucker. I could tell from the way she jerked off Craig earlier. I let him splatter a load or two on them before they fully changed.” Lucy put aside her pump and moved over to him. Despite himself, he couldn’t resist the sight of three naked, horny women, no matter the societal constraints. “Craig is a good bull. Not much of his brain left unfortunately. I had him tell me about himself on the way over. Once I’m done with him, I think I’ll drop him off at home and give his wife the same treatment.”

“You did this to them?” Holt asked.

“Gotta thank you doc, you made me a super villain, I think. A few sips from my udders, and the girls creamed themselves. Only difference between them and me is that the process is much faster, and I think it burns away their brains. Turns them into dumb cows who aren’t good for much other than milking and fucking. The daughter was a fun play thing, but I’ve been saving the missus until you got here. Craig, go on and give the lady a taste of what she’s been begging for.”

With a happy grunt, Craig stalked out of the shadows. Holt’s eyes went wide as he saw the man for the first time. Craig’s changes had not stopped. His chest had grown a thick coat of hair that ran down to his crotch. His cock had grown to an inhuman size and his balls had swollen to match. As he stepped past them, Adam saw the signs of a small tail jutting out from the base of Craig’s spine. “Jesus Christ, you can’t let him go on like that. We need to help him. The mutagen doesn’t have the proper bonds. He’ll turn into a fucking minotaur or something.” The words caught in his throat as Craig spread his legs wide and grabbed Holt’s wife by the hips. He watched with horror as the thick cock pushed against his wife’s pussy lips, and he felt his heart break as she pushed back. Both of them groaned as Craig’s cock sunk into her depths.

“Don’t worry, doc,” Lucy said, straddling him as he craned to watch his wife be fucked. “You’re not going to have to worry about any of that any more. I think I’ll take you with me. Seems only fair that you be the one to help me spread this gift around. Now then, drink up.” She pressed her breast against his lips. Holt whimpered as the first drops touched his lips. He hesitated and then opened his mouth as the rush of warm milk spurted onto his tongue.