Dominant System – Part 4. It was only when he took an idle glance at a calendar that Thomas realised his birthday was the following day. Lately, his time seemed to be taken up by increasingly unorthodox sex with Anna, his faithful robot companion, and researching new cybernetic surgeries for himself. It was amazing the things they could do with organs these days, he thought to himself. As he was thinking about the myriad possibilities, a quiet knocking at his bedroom door stirred his thoughts. “Come in,” he called out, later realising that it had grown rare for Anna to bother knocking. These days she would just barge in, often with smutty intentions. “Good evening Thomas,” she said calmly, letting herself in and sitting down. The robot was dressed modestly tonight, a black pencil skirt paired with a crisp, white blouse. It was a simple outfit, but well-tailored and elegant on her tall, slender figure. Smoothing an imaginary crease out of her skirt, Anna carried on talking. “It's your birthday tomorrow, isn't it?” “That's right,” the boy nodded, his eyes flicking down as Anna crossed her long, gunmetal legs, “Sixteen years old. Have you got me a present?” “I thought you might like to spend the day as master of the house,” Anna offered. The cold blue light of her eyes burning into him as a subtle smile flickered across her lips. “Master of the house?” devilish thoughts began to circle in Thomas' mind, “You mean I'd be in charge?” “Of course,” Anna nodded demurely, “I'd have to obey your every order. Does the idea please you?” The words barely had the chance to leave her mouth before Thomas was nodding enthusiastically. “Then I'll let you get some sleep. You wouldn't want to be tired tomorrow, would you?” “No...” Thomas swallowed nervously. Already, ideas were beginning to swirl in his head, filling his thoughts with lewd fantasies. “No, of course not,” nodding to himself as Anna left the room, Thomas laid back on his bed and tried to sleep. After tossing and turning for a long time, his erection hot and aching against his thigh, the boy accepted that sleep was not going to come easily. Thomas woke early the next morning, barely refreshed from his restless night. Blinking the grit from his eyes and yawning deeply, Thomas climbed out of bed, dressing hastily before heading downstairs. Anna was waiting for him when he arrived, perched on a stool in the kitchen with her long legs dangling freely. “Good morning, Master,” her voice was sweet and light, lending the robot a strangely naïve air. There was something different about her, but it took Thomas a moment to realise what it was. Her hair was longer, spilling around her shoulder in loose curls of burning copper. The new style seemed to strip years from her, making her appear almost girlish. Thomas, who had grown used to her sensual, domineering persona, felt his jaw grow slack. “I prepared your favourite breakfast,” she added, deliberately oblivious to his amazement. “Ah, thank you Anna,” he managed, scraping together the shattered remains of his composure and taking a seat opposite her. His metabolism, enhanced by several upgraded organs, was efficient enough that he needed far less food than a regular human, but the pleasure of a skilfully cooked meal was undiminished. As he ate, however, he grew increasingly unsettled by Anna's new demeanour. The robot's stare was unwavering, never slipping away from the boy for a moment. Almost perfectly still, as only an artificial being could be, the only part of her body to show movement were her legs, swaying like a pair of pendulums to their own subtle rhythm. Her mouth was set in a demure smile, lips painted with a delicate shade of pink, but her eyes hinted at a cool, mocking expression. She was taunting him, Thomas realised, daring him to take charge. “Anna?” he relented, the tension in the room breaking as he finally spoke. “Yes Master?” nothing had changed in her voice, the sweet tone somehow managing to further tease Thomas. “You're staring,” Thomas put down his fork, the plate of hot food half finished. His appetite had vanished, driven away by a stirring in his loins. Anna was treating things like a game, urging him on in her own, carefully orchestrated way, and her plan was starting to work. “I'm awaiting orders,” Anna raised an eyebrow, finally breaking her stillness to twirl an errant strand of hair around her finger, “Master,” she added insincerely. “Fine!” Thomas snapped, the desire to assert his dominance no longer able to be suppressed, “Come here, and get on your knees!” “Of course, Master,” Anna lifted herself from the stool in a single, smooth movement, sinking down to her knees with the same sinuous grace. Thomas began to tug at his belt buckle as she knelt in front of him, fumbling to work the finicky clasp. Placing her cool hands on top of his own, Anna guided him, calmly undoing the belt and sliding the front of his trousers down. A sense of liberation washed over Thomas as his manhood sprang free, the tip already glistening with precum. “Why do you breath?” the boy asked suddenly, the thought occurring to him as Anna's soft breath sent a ticklish sensation quivering through the sensitive tip of his penis. “I've always wondered about that.” “To put people at ease, Master,” Anna answered him, showing no sign of offence at his blunt question. “My job is to... interact... with humans,” the word sounded incredibly dirty coming from the kneeling robot when she had her hand wrapped around the shaft of his cock. “It simply wouldn't do to make them...” she paused, blowing a long jet of cool air over his penis that sent shivers down his spine, “Uncomfortable. Of course, there are other functions,” she added, looking up at Thomas with smouldering eyes. “Other functions?” Thomas asked, leaning back and letting the words flow over him. For some reason the lecture, delivered in a serene, yet sexual voice, only stoked the fires of his arousal further. “Oh yes, I can sample the air,” Anna took a deep breath, her full lips parting sensuously, “and analyse it for any chemicals or pheromones.” The robot paused, lowering her head and breathing deeply, inhaling the scent of Thomas' sex. “I can taste your lust,” she purred, lips brushing against the side of his shaft. Unable to hold back, Thomas plunged one hand into Anna's hair, steering her mouth to the tip of his penis. Her hair was soft, yet somehow different from human hair. Stiffer, perhaps, and more ticklish against his bare skin. Any thoughts about her hair soon left Thomas' mind as Anna's tongue flicked out, licking salty drops of precum from his penis. A soft groan escaped the boy as Anna licked and caressed his penis. Soft warmth enveloped his as the robot swallowed the organ, her wet tongue sliding around the tip. The luxurious heat of her mouth seemed to draw Thomas in, as if every nerve ending in his body had rushed into his penis. Leaning back against the table with his eyes drifting shut, Thomas felt as though his body was sliding into an exquisite bath of warm mud. The sudden shift from the hot moisture of Anna's mouth to the cold air startled Thomas, forcing his eyes open. Anna was stroking his cock, massaging the slick organ, and looking up at him with wide eyes. “Should I finish you off?” she asked sweetly, her nimble hands maintaining a perfect rhythm. Thomas nodded enthusiastically. “Swallow it,” he ordered, a slight quavering to his voice. Even now, with the robot on her knees before him, the act of giving orders seemed unnatural. Anna raised an eyebrow, as if surprised by his decision, before licking her lips and taking his cock into her mouth once more. Every ridge of her mouth was sculpted to perfection, as if she had been designed by a master craftsman for this exact purpose. Wet enough for his shaft to slide between her lips with ease, there was a delicious friction that send waves of pleasure through his organ with every motion. Best of all was her tongue, eagerly switching between flicking over the tip of his penis and slowly running up and down his entire length. With such devoted attention, Thomas was hardly surprised when he felt his orgasm building. It was going to be a powerful one – starting as a dull ache at the base of his penis and travelling up the shaft until his entire erection felt heavy, ready to burst. As if sensing his oncoming climax, Anna picked up speed. Thomas clenched his eyes shut, one hand still buried in Anna's hair, as the tip of his penis began to tingle with an intensity close to pain. At the mercy of Anna's skilful ministrations, Thomas' orgasm seemed to grow to unprecedented levels, eclipsing any other pleasure he had known. Just as Anna was swallowing him up to the hilt, Thomas felt himself climax with explosive force. Thunderous waves of pleasure pulsated through the boy, forcing him to bite his bottom lip to stop himself from crying out. Even so, a deep grunt slipped through his gritted teeth. His seed seemed to pour forth in unstoppable waves, shooting into Anna's mouth and painting her throat with the thick, pearly liquid. When he finally finished, Anna swallowed deeply and pulled her head back, licking the lingering remnants of the seed from Thomas' retreating erection. Other than a single drop leaking from one corner of her mouth, no trace of the liquid remained. Despite himself, Thomas couldn't help but laugh at the sight of Anna delicately wiping the drop away with a tissue. His laughter stopped abruptly as a thought occurred to him. “That isn't going to, I don't know, gum up your insides or anything, is it?” the idea seemed farcical, but just possible enough to get him worried. Anna laughed deeply at the question, her perfect composure slipping for a moment. “I shouldn't worry about it Master,” she laughed again, girlishly covering her mouth, “I can eat food, can't I? It'll just get broken down for fuel like anything else,” she winked, one eye fading to black for an instant, “Really Master, I should thank you. It's good for me, after all.” “Well then,” a relieved smile spread across Thomas' face, “Maybe we should take this upstairs.” “Ready to go again so soon, Master?” Anna rose to her feet, an amused smile darting across her mouth. “A perk of the upgrades, I imagine.” “Or maybe I'm just that good,” Thomas retorted, although his boastful tone was somewhat unconvincing. “Of course, Master,” Anna giggled, “Lead the way.” “So what are we going to do?” Anna, reclining on Thomas' bed, asked. She played with her top button of her blouse and stared up at the ceiling, waiting for the boy's response. “Actually...” Thomas hesitated, “I thought we could talk for a while.” “Talk?” there was a rustle of sheets as Anna rolled over to face the boy, her tone immediately shifting back to a more serious one. “Is there something wrong?” “Do you like all this?” Thomas asked, avoiding her eyes, “Playing submissive, that kind of stuff.” There was a long pause as Anna considered the question. “I'm dominant,” she began slowly, “That's just the way I'm programmed, but playing submissive...” she paused again, thought processes working overtime to find the right words. “It feels good, going against that programming, like I'm choosing my own fate. Still...” “Still?” “How do you like it?” Anna asked, the conversation changing track dramatically, “Being master of the house?” “It's pretty hard work,” Thomas laughed nervously, “I don't think I'm very good at it.” “So you won't mind if, say...” Anna sat up abruptly, a wicked light entering her cold blue eyes, “I stayed as Mistress from now on?” “I wouldn't mind,” Thomas admitted, “But what about that free will stuff?” “I'm making this choice out of my own free will,” the robot declared, “Not because of my programming, because I want to,” she grinned, “You looked worried there. Were you afraid I was going soft?” “Well...” Thomas shrugged, struggling to conceal a grin, “Maybe.” “That reminds me,” Anna stood up, brushing herself down, “I got you another present. I'll just get it now,” she hurried out of the room, the sound of her footsteps fading as she ran down the hallway. A few moment later, she returned with a large box. “Go on, open it!” Thomas tore into the large box, stripping the wrapping away and pulling the lid off. Folded neatly inside the box was a dress, white and lace trimmed. Thomas looked at the dress with confusion, glancing back up to Anna's grinning face. “Uh...” “You didn't think I'd notice?” Anna leaned over, placing a firm hand on Thomas' shoulder to stop the blushing boy from fleeing. “I'd go out shopping and when I got back, someone had been rummaging through my drawers. You weren't even subtle about it,” placing a finger under his chin, Anna lifted Thomas' face so that their eyes met, “Almost as if you wanted to get caught.” “Uh...” Thomas stammered again, suddenly certain that denial was useless. Nothing he could say would make a difference, “So what are you going to do about it?” he offered, trying to sound more confident than he felt. “I think you should get dressed,” unfolding the dress, Anna held it up against the boy's androgynous body, “Then I think we should go clothes shopping, so you don't have to keep stealing from me,” Thomas yelped in pain as Anna's hand lashed out, quick as a viper, and grabbed his erection through his tented trousers. “Although this might be a problem. I might have to... take that off of you.” “That's...” Thomas started, before giving up. He knew when he was defeated. “So where should we go first?”