This story contains graphic sexual content, explicit language, themes of power imbalance, non-consensual undertones, and manipulation. Reader discretion is advised. All characters depicted in sexual scenarios are consenting adults aged 18 or older. This story is intended for mature audiences only. If these themes are uncomfortable, consider exploring other content.
Chapter 2:
The next morning, as the early light filtered through the windows, Smith’s phone buzzed on the kitchen counter. It was Eric.
How’s the experiment going? the text read, short and to the point, as always.
Smith smirked as he tapped out a reply: Great. You should come over later this morning. I’ve got something to show you.
He hit send, leaning back in his chair, sipping his coffee as he thought about the night before. Lizzy had been more than he could’ve imagined, her body perfectly molded to his desires, her every moan, scream, and gasp the result of his careful planning. The changes he had made to her, and to himself, were everything he had envisioned. And he knew Eric would be impressed.
Lizzy was still asleep upstairs. After the marathon of sex they had indulged in, her body was completely worn out. The nanobots had done their job perfectly—enhancing her stamina, making her more sensitive to every touch—but even with those enhancements, she had passed out completely spent.
The sound of footsteps on the stairs broke through his thoughts. He glanced toward the stairwell as Lizzy appeared, gloriously nude, her body still flush with the afterglow of last night’s pleasures. She hadn’t bothered with clothes; she loved the way her skin felt, bare and open, knowing it drove him wild. Her large breasts bounced with each step, each one a reminder of her perfect transformation.
“Good morning,” she said, her voice sleepy but cheerful, a soft smile tugging at her lips. She stretched, her arms raised above her head, showing off the curves of her newly enhanced body. “God, I feel amazing,” she giggled, her eyes still half-closed as she made her way into the kitchen. “I don’t think I’ve ever slept so good.”
Smith grinned, watching her with a sense of satisfaction. “You certainly earned it,” he said, standing up and walking over to her. He grabbed her by the waist, pulling her close for a brief kiss. His hands wandered down to her hips, feeling the firmness of her body, the results of all the changes he’d made.
Lizzy moaned softly into the kiss, pressing her body against him. “Mmm, you weren’t kidding about those experiments,” she teased, her fingers grazing over his chest. “I’m still sore… but in a good way.” She giggled again, clearly enjoying the way her body felt.
Smith smirked. “I’ve invited Eric over later this morning. I want to show him the results.”
Lizzy’s eyes widened slightly, a flicker of uncertainty crossing her face. But then it passed, replaced by a familiar excitement. “Oh really?” She giggled again, a playful grin spreading across her face. “I can’t wait to see the look on his face when he sees this.” She cupped her massive breasts, giving them a playful squeeze. Smith watched her, knowing that her eagerness was more than natural.
The nanobots enhanced her physical pleasure, rewiring her body to crave his touch. She didn’t know it yet, but she was already addicted—compliant, not because he controlled her thoughts, but because she needed the satisfaction only he could give.
Lizzy stretched, her body still glowing with satisfaction as she rubbed her stomach. “I’m starving,” she giggled, looking over at Smith. “Got anything for breakfast?”
Smith’s mind was already drifting downstairs, where his latest idea was waiting for him in the lab. The syringe he’d prepared last night sat there, gleaming in his thoughts, urging him back to work. He glanced up at Lizzy, her carefree humming breaking the silence. “Why don’t you make us something?” he suggested, his tone still calm but now tinged with distraction. “I’ve got some work I need to finish in the lab.”
Lizzy smiled and nodded, turning toward the kitchen. “Sure thing, Doc! I’ll whip up something good.” She started opening cabinets, humming to herself as she moved around, completely at ease in her nakedness.
As she reached for a pan, her phone buzzed on the counter. Her stomach tightened when she saw it was another text from Leo. "Lizzy, seriously, where are you? You need to call me. I'm worried." She bit her lip, hesitating for a moment before locking the phone without replying. She couldn’t deal with his overprotectiveness right now. Not when she was so deep in Smith’s world. Pushing the thoughts of Leo aside, she focused on cracking eggs into the skillet, letting the sizzle drown out the guilt gnawing at her.
Smith headed downstairs to his lab, his mind already spinning with ideas. The incident from last night—his nanites replicating inside Lizzy through his semen—had sparked something. A new idea. As he entered the sterile lab space, he quickly set to work, prepping another syringe of nanites. This one would be for Eric. He knew Eric well enough to know that, once he saw the results on Lizzy, he’d want in. He’d want the power, the control.
But Smith wasn’t going to hand that power over so easily.
He scanned the syringe, assigning it a serial number, his eyes narrowing in thought. With the incident last night, he knew there was a way to use this situation to his advantage. His fingers tapped the screen, pulling up the AI interface. This time, he spoke aloud. “Can nanites that are released into another individual via sperm be automatically reprogrammed with certain directives within their new host?”
The AI processed for a moment, then replied: Yes. Once nanites are transmitted to a new host, they can be reprogrammed remotely with predefined directives.
Smith grinned. “Good,” he muttered to himself, the plan solidifying in his mind. It was a brilliant delivery method. Eric would think he was gaining full access to the nanite technology, but Smith could control exactly what those nanites did—and more importantly, what they couldn’t do.
He would give Eric the sample, let him enjoy the benefits, but the real power would still rest with Smith. And every person Eric fucked would receive pre-programmed “upgrades,” controlled not by Eric, but by Smith’s system. It was the perfect way to spread the nanites without ever losing control of them.
Smith’s smirk deepened as he closed out the interface and carefully set the syringe aside. Eric will never even know.
Sitting down at his terminal, his fingers flew across the keyboard as he began writing the code that would control the batch of nanites meant for Eric. The syringe sat nearby, gleaming under the sterile lights of the lab, ready to be injected, but not without the proper programming first. Smith’s mind raced, thinking through every detail, every contingency.
He started simple. The first subroutines were familiar—he had used them on himself and Lizzy. Complete health optimization: any genetic disorders, viral infections, and diseases would be eradicated. Full immunity to future ailments. These were the basics, the foundation of what the nanites could do. But Eric wasn’t just going to be content with good health.
Smith smirked as he added the next line of code, adjusting the nanites to increase the size of Eric’s cock by 50%. He knew this wasn’t what Eric really cared about—what Eric wanted was power. Control. But Smith needed to throw in a few indulgences, a distraction, something to keep Eric satisfied while Smith retained the true power in their arrangement. It was subtle enough not to arouse suspicion, but significant enough for Eric to feel like he’d gotten his money’s worth. That should do.
Satisfied with the personal enhancements, Smith turned his attention to the secondary part of the plan: the auto-programming for the women Eric would inevitably fuck. This was where Smith’s control would be truly felt. He quickly copied over the same health and immunity subroutines—no harm in ensuring the girls were at their physical peak.
Then, he added something special. A 50% increase in breast size for every woman Eric came into contact with. It was a small but noticeable change, just enough to make them more visually appealing, more “enhanced” without making it seem obvious. Next, he set the parameters to increase their sensitivity in key erogenous zones—their nipples, clits, G-spots, all heightened for pleasure.
Smith paused for a moment, reviewing the code. He knew Eric well enough to know the man would get greedy eventually, wanting more control, more changes. “That’s where I come in”, he thought, smiling as he added a final line of code. For any additional modifications, Eric—or the women—would have to come directly to Smith. There would be no unauthorized tampering, no bypassing the system.
Smith leaned back in his chair, satisfied. Perfect. The batch of nanites was now pre-programmed, ready to be delivered. Eric would think he was getting exactly what he wanted—better health, a bigger cock, and a way to enhance the women he slept with. But the real power would stay firmly in Smith’s hands.
Smith came back upstairs to the smell of sizzling bacon and eggs, catching Lizzy gliding around the kitchen, still bare-skinned, her curves on full display, humming sweetly to herself. When she noticed him, her face lit up with a grin. “Hope you’re hungry!” she giggled, sliding plates onto the table like everything was just normal, as if she wasn’t dripping wet and glowing from last night.
Smith slid into his chair, his mind stuck downstairs, the syringe, the code he’d been perfecting—but he pushed it aside. No sense in ruining the mood. They ate in a comfortable quiet, Lizzy occasionally bubbling over with talk about how fantastic she felt, how last night was something else entirely, her voice bright and carefree, almost vibrating with energy.
As they finished eating, Lizzy’s playful energy lingered in the air. Her eyes flickered back to him again and again, a growing heat behind her gaze. Her fingers absently traced the curve of her stomach, then lower, a hint of something more bubbling to the surface. Each glance toward him spoke volumes—she wasn’t done with him yet, not by a long shot.
She leaned in, voice hushed but thick with desire. “I don’t know what you did to me, Doc,” she whispered, licking her lips, “but I can’t stop thinking about last night… I’m so fucking horny.”
Smith chuckled, stood up, and shrugged his robe off without a word. His cock dropped free, hanging heavily between his legs, and Lizzy’s eyes went wide. It was bigger—massive. The head looked almost swollen, thick with blood, pulsing like it had a heartbeat of its own. “Oh my fucking god…” she breathed, her voice shaky as her hand reached for it, fingers twitching with need. “You’re… even bigger than before!”
Without another thought, Lizzy dropped to her knees, mouth open and ready, but she could barely fit half of him inside. Her lips stretched tight around his shaft, saliva pooling at the corners as she tried to take more. “Mmmph!” she moaned, gagging slightly, pulling back to work him with her hands, stroking what her mouth couldn’t handle. Her eyes flicked up, glassy with lust, her tongue tracing the underside of his cock. "So biiiiiig," she gasped between wet, desperate slurps, spit dribbling down his length as she pumped him harder.
Smith groaned, his hand settling on the back of her head, feeling her throat fight to take him deeper. “You can barely get it in,” he muttered with a smirk, watching her struggle, her moans vibrating against him, adding to the sensation.
Lizzy gasped, pulling off with a pop, her chest heaving, hands still working him eagerly. “I’m trying!” she giggled breathlessly, her excitement barely contained. “You’re just… so big!”
But Smith wasn’t finished. He yanked her up, spinning her toward the couch and pushing her back, her legs spreading wide on instinct. Her pussy was glistening, practically begging for him, and when he pressed the fat head of his cock against her slick entrance, she let out a loud, quivering moan. “Fuuuuuck,” she gasped, her body trembling as he started to push in.
He slid in slowly, her pussy clenching tight, struggling to stretch around him. “Oh my God,” she whimpered, her nails digging into the couch cushions as he buried himself deeper. “You’re… you’re so fucking biiiiiig… I can feel it, fuuuuuck!”
Smith kept pushing, inch by thick inch, her pussy gripping him like a vice, her breath coming in shallow, ragged bursts. “Fuuuuuuck,” she moaned again, her back arching, tits bouncing as he filled her completely. “You’re too big, I can feel every inch… fuuuuuuuck!”
He didn’t stop. He shoved deeper, feeling her walls struggle to accommodate him, her body shaking as he finally bottomed out inside her, buried to the hilt. “Oh my God,” she cried out, her voice breaking. “You’re stretching me so much, I can feel every... fuck!”
Smith grinned, pulling back slightly before thrusting into her again, slow but deep, savoring the way her pussy fought to take him. Lizzy moaned louder with each movement, her body writhing beneath him, a slave to the pleasure he had engineered.
“You love this, don’t you?” he growled, grabbing her hips tighter, slamming into her harder.
“Yesssssss!” she screamed, her voice cracking with pleasure. “Fuck, yessssss, I love it!”
She did love it—more than anything—but only because her body had been reprogrammed to crave his touch like a drug.
The more she had, the more she needed. “Stretch me more, pleaseeeee!”
He pounded into her, her moans turning to frantic, breathless cries as her body bounced beneath him. Her tits jiggled with each thrust, her hard nipples brushing against his chest, sending jolts of pleasure shooting through her. He reached down, squeezing her breasts, twisting her nipples, making her scream louder. “Oh fuuuuuck, I’m gonna… I’m gonna cuuuuum!” she gasped, her whole body shaking uncontrollably. “You’re too big… I can’t… fuuuuck!”
Smith grinned, slamming into her even harder, pushing her right to the edge, until she finally screamed, her entire body locking up as her orgasm crashed over her. Her pussy clenched hard around his cock, milking him as they came, her legs shaking, her back arching off the couch as she cried his name.
Lizzy collapsed, panting and trembling, her body slick with sweat, barely able to move. Her mind spun with the lingering pleasure, a haze clouding her thoughts. She couldn’t think clearly—only feel. And all she felt was need. But then came a knock at the door.
Smith pulled out slowly, watching Lizzy’s body tremble and twitch, still spasming with the aftershocks of her orgasm. The room was silent except for their heavy breaths—until a sharp knock at the door broke the moment. His smirk widened at the sound. “Go answer that,” he ordered, his voice low with amusement.
Lizzy blinked, her post-orgasmic haze barely clearing as she wobbled to her feet. Her legs shook with every step, still slick with the evidence of their morning. “Like this?” she giggled breathlessly, her voice hoarse with exhaustion and thrill.
“Exactly like that,” Smith said, his tone firm, commanding.
Lizzy didn’t hesitate, her naked body glistening as she made her way to the door, pussy still slick and swollen. She opened it, revealing Eric standing there, his eyebrows lifting in surprise before a slow, knowing grin spread across his face.
“Well, well,” Eric chuckled, his eyes trailing up and down Lizzy’s naked body. “Looks like you’ve had quite a morning.”
“She’s ready to show off the work,” Smith called from behind her, stepping into view, still nude, his cock still half-hard. “Come on in, Eric. You’re gonna love what I’ve done.”
Eric strode into the room, eyes fixed on Lizzy’s naked, glistening body, chest still heaving, skin flushed from her recent orgasm. The sight stunned him, but he wasn’t complaining. A grin crept across his face as his gaze slid over to Smith, who stood there with a smug smirk.
“So this is where your experiments led?” Eric chuckled, voice dripping with intrigue as he sank into a nearby chair, reclining like he was ready for the main event. “Not bad, Doc.”
Smith’s grin widened, his hands wrapping around Lizzy’s hips as he guided her back to the couch. No words were needed as he bent her over, ass high in the air, her body completely exposed to the two men. Lizzy moaned, low and soft, arching her back, her hands clutching the couch’s edge, waiting, trembling with anticipation.
“Let’s show Eric just what upgrades you’ve gotten,” Smith muttered, cock already stiff as he positioned himself behind her. He spread her legs wider, soaking in the view of her slick, swollen pussy, still glistening from earlier. Without missing a beat, he slid the head of his cock along her wet folds, teasing, making her squirm, her hips pushing back desperately.
“Please,” Lizzy gasped, voice shaky and breathless. “I need it… I want it so bad.”
Smith glanced at Eric, who watched, eyes dark, hunger in his stare. Then, with a rough grunt, Smith drove into her, his thick cock stretching her all over again. Lizzy screamed, her back bowing as she slammed back against him, nails digging into the cushions.
“Fuuuuuuck,” she cried, body quaking with each powerful thrust.
“Still so tight,” Smith growled, hands gripping her hips harder as he started pounding into her. Each thrust was deliberate, rough, sending her body rocking forward, ass bouncing with every savage slam of his hips. Lizzy’s moans grew louder, desperate, as her body surrendered to the onslaught.
Eric leaned forward, a wicked grin spreading as he watched. “You’ve done some serious work on her, Doc. She’s a fucking masterpiece.”
Smith didn’t respond, too engrossed in the way Lizzy’s body responded to him, how her pussy clung tight around his cock. He leaned over her, hands sliding up to roughly grab her bouncing breasts, squeezing as he fucked her harder, her moans turning into breathless, needy whimpers.
“Tell Eric how much you love this,” Smith’s voice came out dark, commanding.
Lizzy gasped, breath ragged. “I love it… Fuuuuuuuck, I love being fucked like this!” Her voice cracked, her body trembling with each relentless thrust. “You’re so fucking big, I… I can barely handle it.”
Smith grinned, thrusting deeper, harder, making her scream. “She’s perfect now,” he muttered, hand still clutching her breast as he fucked her in front of Eric. “She can take anything.”
“Yeeeeeesssss, Fuuuuuuck, yeeesssss!” Lizzy’s eyes squeezed shut, body on the verge, overwhelmed by the building pleasure. “I’m gonna… I’m gonna cum…”
“Let her,” Eric smirked, watching intently. “Let her fucking cum.”
Smith didn’t let up, his pace ruthless, driving her right to the brink. Lizzy screamed, body convulsing, pussy clenching tight around his cock as her orgasm slammed into her. She cried out, shaking uncontrollably, collapsing against the couch, legs trembling as the intensity wracked her body.
Smith groaned, still deep inside her, his hands gripping her hips as he rode out her orgasm, the final shudders running through her. Eric chuckled from his seat, clearly satisfied. "You’ve really outdone yourself, Doc. She’s fucking perfect."
Smith slowly pulled out of Lizzy, her body still shaking from the intense pleasure. She slumped forward on the couch, panting, her skin slick with sweat. Smith stood up, not even bothering to cover himself, and made his way over to the counter where the syringe was waiting. He picked it up, turning it over in his fingers, the light glinting off the glass.
Eric was watching closely, his eyes narrowed with curiosity. “So, what’s this?”
Smith held the syringe up, smirking. “It’s all here,” he said. “One injection, and you’ll get all the enhancements I’ve promised. Strength, health, a bigger cock—all the upgrades you could want.” He stepped closer to Eric, his voice dropping lower, more deliberate. “But there’s more. Distribution… That’s where I had to get creative.”
Eric leaned back in his chair, still intrigued. “Go on.”
Smith set the syringe down on the table, his smirk widening. "I don’t have enough nanites left to do every girl you’ve got. But I came up with a solution: a delivery system. If you fuck each of your girls, the nanites will transfer through your semen. Every time you cum inside them, the nanites will be passed on. They’ll automatically upgrade each girl—health, enhancements, increased sensitivity. And soon, the pleasure will become all they crave. They’ll need it like a drug, and they’ll do anything to get it. They’ll be tighter, tits bigger, and more in tune with what their clients want.”
Eric raised an eyebrow, his grin widening as the possibilities sank in. “So, I fuck them, and they get the upgrades automatically?”
“Exactly,” Smith continued, his voice smooth. “The best part is, they’ll never know. The changes will feel natural to them. They’ll definitely enjoy it more, which will help keep them in line. Their clients will notice the difference too—everything will be more authentic, more… responsive. You’ll make more money, have better control.”
Eric was clearly intrigued, his fingers tapping thoughtfully against the arm of the chair. “You’ve thought this through, Doc. This could make things… a lot easier.”
Smith nodded, satisfied. “That’s the idea. The girls will be healthier, better, more eager to please. And the only thing I ask for now…” He paused, glancing over at Lizzy, who was still lying on the couch, her eyes half-closed in exhaustion. “Is that I keep her. She stays with me.”
Eric glanced at Lizzy, then back at Smith, his grin widening. “You want her? Fine. She’s yours. With what you’re offering, I’ll have plenty more where she came from.”
Smith picked up the syringe again and stepped toward Eric. But Eric hesitated, eyeing the syringe warily. “What if something goes wrong? I don’t like handing over control of my body without knowing what I’m getting into.” Smith’s smirk widened. “Relax. I’ve perfected the process. You’ve seen what it did for Lizzy, haven’t you? It’s perfectly safe.”
After a moment, Eric gave a slow nod, still cautious but intrigued. “Alright, Doc. Let’s see what this can do.” Smith injected the syringe into Eric’s arm, watching as the nanites entered his bloodstream.
Eric flexed his arm, smirking. “How long before I start feeling these enhancements?”
“Not long,” Smith replied, pulling the needle out. “You’ll start noticing the changes soon. By tonight, you’ll be ready to see the results firsthand. And your girls will too.”
Eric flexed his arm slightly, smirking as if he already anticipated the results. But Smith’s expression remained calm, his mind already moving to the next phase of his work.
“I’ll be honest,” Smith said, setting the syringe down. "The physical enhancements are the easy part. The real challenge is the mind. Full control... that’s nearly impossible. But," Smith paused, smirking, "I found another way. The body’s desires can override the mind. Give them enough pleasure, make them crave it, and they’ll come to you willingly. Desire is stronger than thought, and I can control desire."
Eric raised an eyebrow, clearly interested. “That’s a hell of a workaround.”
Smith nodded slowly, leaning back against the counter, his eyes narrowing thoughtfully. “It is. The body can be manipulated, reshaped, optimized. But the mind… the mind is complex. It doesn’t bend as easily. There are too many variables, too many layers to unravel. But you can break it, mold it, make it crave, without controlling it directly.”
Eric leaned forward in his chair, his grin widening. “Well, that’s definitely a start, I’m sure we could both make good use of that.”
Smith nodded, his thoughts already drifting back to the experiments he had been running. “You have no idea.”
Eric stood, his grin still lingering as he adjusted his jacket. "This is going to be big, Doc. Real big." He glanced back at Lizzy one last time, his eyes flicking over her naked, flushed body. "Enjoy your new toy."
Smith smirked. "Oh, I plan to."
With that, Eric turned and left, the door clicking shut behind him. The room was quiet for a moment, the air heavy with the intensity of what had just been discussed. Lizzy stirred from her spot on the couch, her eyes wide with excitement as she sat up, still glowing from the attention she had received earlier.
“I heard some of what you were talking about,” she said, her voice bubbly but filled with curiosity. She shifted slightly, her breasts swaying as she moved. “You really want to do all that to the other girls? Upgrade them?”
Smith walked back over to her, his eyes dark with intent as he sat on the edge of the couch. “Yes,” he replied simply, watching her closely. “They’ll be better. More responsive, healthier, more in tune with what their clients want.”
Lizzy bit her lip, her excitement bubbling over. “That’s so hot. They’re going to love it… And you want to keep me?” She giggled, her eyes lighting up as she leaned toward him, her hand resting on his thigh. “Why me?”
Smith leaned in, his gaze never leaving hers. “I do,” he said, his voice low and controlled. “I want to turn you into my perfect fuck doll. Mold you, shape you into everything I desire. No one else will come close to what you’ll become.”
Lizzy’s breath hitched, her body shivering with excitement. “Really?” she asked, her voice breathless. “You want to make me perfect?”
Smith’s hand slid up her thigh, his fingers grazing her skin as he leaned closer. “I already have. But we’re only getting started.”
Smith’s hand slid slowly up Lizzy’s back, his fingers brushing along the curve of her spine. He leaned close, whispering, "Now, I’m going to fuck your ass."
Lizzy’s breath caught, her body going still for a moment. She turned to look over her shoulder, eyes wide with excitement and hesitation. "Fuuuuck... I don’t know if you're even gonna fit." Her voice quivered, laced with nervous anticipation.
A smirk curled Smith’s lips as his hand gripped her ass firmly, spreading her cheeks apart. "I’ll fit," he promised, his voice thick with intent. "Just barely. I made sure of it." He had already programmed the nanites to prepare her body, but she’d still feel every inch of him, every deep stretch.
Lizzy bit her lip, her pulse racing at the thought. The idea thrilled her, even as a flicker of nervousness passed through her mind. Anal wasn’t new—she’d done it before—but not like this, not with someone like Smith, and definitely not with a cock as massive as his. She steadied herself on the couch, arching her back, spreading her legs wider.
Smith positioned himself behind her, his cock rock-hard, gleaming from her juices. He pressed the tip against her tight asshole, his fingers trailing down to her dripping pussy. Sliding two fingers inside her wet heat, he coated them with her arousal, then smeared it along his cock, slickening the way. "This will help," he muttered, the weight of anticipation heavy in the air.
Lizzy moaned, arching her hips back toward him, her body tensing as the thick head of his cock pressed insistently against her. "Oh god... go slow," she gasped, her breath coming in shallow bursts, her whole body trembling.
Smith leaned forward, his breath hot against her ear, and started to push the thick head inside. Lizzy’s moan came out in a long, drawn-out cry as she felt herself stretch painfully around his size. "Fuuuuuuck," she whimpered, her fingers gripping the couch cushions, her body torn between pleasure and the sharp, intoxicating pain of it all.
He didn’t stop. Slowly, he eased in, inch by inch, his hands gripping her hips tight, holding her steady as he sank deeper into her tight hole. Lizzy’s body clenched around him, her tight ass squeezing his cock as he filled her. Her moans grew louder, more desperate, each one punctuated by gasps as she adjusted to him. "You’re so fucking tight," he growled, feeling her stretch around him.
Lizzy’s head dropped forward, her voice ragged. “Oh fuck, oh fuck... you’re so big,” she whimpered, her whole body trembling as she felt every inch of him. “I can feel every… fuuuucking... thing.”
Smith pushed deeper, feeling the tight grip of her ass pulling him in, stretching her as he went. "You’re taking it all," he muttered, his voice rough. "Every inch of me."
Lizzy moaned louder, her body shaking with every thrust. Her pussy, still drenched, ached for more, while her ass clung desperately to his cock. "Fuuuuck... yes, keep going," she gasped, her breath catching between moans. "I want more! Please!"
Smith grinned, his thrusts growing harder, feeling her body stretch to its limits, but responding to every brutal inch he gave her. She was pushing back now, her hips grinding against him, her moans transforming into needy, breathless cries for more.
He could see it—she could barely handle him, but that’s exactly what made it so fucking perfect.
Smith drove himself deeper into her, feeling Lizzy’s ass gripping tight, her cries becoming higher, more frantic. Her head snapped back, eyes wide, and she let out a high-pitched moan. "Oh my god," she gasped, her voice breaking into a breathless giggle, her fingers clutching the couch cushions. "You’re soooo fucking big! I can’t believe you fit inside me!"
"Just barely," Smith grunted, his voice low and rough. He thrust deeper, watching the way her ass swallowed him inch by inch. "I made sure you’d take every last bit. You love it, don’t you? Feeling all of me?"
Lizzy giggled, her hips rocking back against him. "Fuuuuck, I love it! I didn’t think I’d be able to take it, but—oh god—I can feel you so deep," she moaned, her voice trembling. "You’re fucking my ass like it was made for your cock."
"It was made for me," he growled, thrusting harder, his hands gripping her waist tight as he buried himself deeper into her. "I made sure you’d be able to take it."
Lizzy squealed with delight, her back arching. "You dirty bastard!" she giggled between gasps. "You programmed me to take your cock, didn’t you? Fuuuuck... I love it—keep going, keep going!"
Smith’s smirk widened as he thrust in harder, feeling her ass tighten around him, her moans filling the room like music. He leaned closer, whispering hot against her ear, "You’re my perfect little fuck doll, aren’t you? Taking everything I give you."
Lizzy shuddered at his words, her giggles turning into loud, breathless moans. "Yeeesssss!" she cried, her voice high and desperate. "I’m your perfect little slut... made for your cock... fuuuuuuck, I can feel you so deep in my ass! I love it, I love it!"
Smith’s pace quickened, his thrusts growing rougher as he watched her ass stretch to accommodate him, her body trembling with pleasure. "Tell me how it feels," he growled, his hand coming down hard against her ass, making her yelp in a mix of pain and ecstasy.
"It feels sooooo good!" Lizzy squealed, her body shaking with pleasure. "You’re soooo fucking huge, you’re wrecking me! I can feel you stretching me, filling me... fuuuuuck!"
Smith could barely hold back, his hips slamming into her harder, his cock deep inside her stretched, quivering hole. "You’re fucking perfect," he grunted, watching her bounce on him, her tight ass clinging to every inch of him.
"I was made for this," Lizzy giggled, her body shaking uncontrollably as he filled her up. "Made to take your cock... fuuuuuck, I love it... I fucking love it!"
Smith’s thrusts became more frantic, rougher, every movement driving him deeper into Lizzy’s stretched ass. Her voice was breathy, her moans turning into sharp, high-pitched squeals. "Oh my God, you’re gonna split me in half!" she squeaked, though her hips pushed back harder with every thrust. "Fuuuuck... you’re so big... you’re gonna ruin me!"
Smith grinned, the sound of her dirty words sending him over the edge. His grip tightened on her hips, pulling her back harder onto his cock, each thrust brutal and deep. "You love how deep I am, don’t you?" he growled.
"I fucking love it!" Lizzy moaned, glancing over her shoulder, eyes gleaming with that familiar giggle bubbling on her lips. "You’re fucking me so hard... I feel you everywhere!"
Smith’s hands slid over her body, gripping her soft curves as he pulled her back harder, deeper, her ass swallowing him whole. "I told you," he muttered through clenched teeth. "You were made to take all of me. Every fucking inch of this cock."
Lizzy’s breath hitched as he pounded into her, her body trembling beneath him. "Fuuuuck, yesssss!" she cried, her voice ragged with excitement. "I can feel you so deep... you’re gonna make me cum!"
Smith grunted, the pressure building inside him, his body on the edge as her ass squeezed him tighter with every thrust. Lizzy was practically bouncing on him, her body desperate for every inch, her breathless cries filling the room. "Don’t stop, don’t stop!" she gasped. "I love feeling so full... fuuuck, fuck me forever!"
Smith couldn’t hold back anymore. His hips slammed into her one final time, his cock buried deep in her ass, her body squeezing him tight as he came. His breath caught as he shot deep inside her, filling her up completely.
Lizzy’s eyes rolled back, her body trembling, her voice high and broken. "Oh my goooood... I can feel it, you’re filling me up so much... fuuuuck, that’s so hot!"
Smith stayed buried deep, his hands gripping her hips tightly as he finished, her ass clenching around him, milking every last drop.
Lizzy panted, still trembling as the aftershocks of pleasure rocked her body. "You came so much," she giggled, voice shaky. "I can feel it dripping out... fuuuck, that was so fucking good."
Lizzy let out a breathy giggle as she shifted beneath him, her ass still trembling from the sheer intensity of what they had just done. She turned her head slightly, looking back at Smith with a playful grin. “I wish I could live off your cum,” she purred, biting her lip, her body still quivering from the fullness she felt inside.
Smith froze for a moment, her words lingering in the air, then something dark and calculating flickered across his face. That’s an idea, he thought, his mind already racing. The possibilities of nanotechnology opened doors to everything, including sustaining the body with something as intimate, as controlled, as his own seed.