Dr. Barbie Chapter Nine (Patreon)

Barbie lay draped across daddy’s lap, her diapered rump stuck up in the air behind her, heart thumping in her chest like a frightened animal. Her muscles were totally relaxed, and she’d probably be enjoying herself... except she could still hear Susan snickering in the background. Barbie scowled, propping her chin on her hand... She and Daddy had been having a perfectly lovely afternoon before she had shown up. Barbie didn’t remember Susan from before, her memories before the incident being hazy at best... but Barbie had quickly grown tired of the other woman’s snide remarks and giggles.

     She heard the tapes on her pamper being torn, and peeked back over her shoulder to see the seat of the diaper peeled down to reveal her plump, rounded tushy to Dan and Susan. Under normal circumstances, Barbie would be thrilled to be over daddy’s lap spanky-style with her diaper down and her bare bum stuck up in the air behind her. But Susan and her snickering were ruining the atmosphere, and Barbie watched over her shoulder, nervous, watching as Susan gathered her supplies and approached her from with a raised eyebrow and a sardonic grin.

     “Dan,” she asked innocently, squirting a large dollop of KY jelly on her finger, “would you mind spreading her cheeks for me?”

     Reluctantly, Dan took hold of Barbie’s buttocks and parted them gently, fully aware of the way she was squirming on his lap.

     Slowly, teasingly, Susan reached out to smear the cool gel onto Barbie’s tight little anus, making her buck and squeal in response. “Hold still!” Susan snapped, delivering an open palmed swat to one of Barbie’s plump buns. Although it hadn’t hurt much, the loud POP it produced caused Barbie to jump a bit on Dan’s lap. Dan wasn’t happy with the way Susan was acting, but he didn’t have time to confront her... She was in the process of lubing up Barbie’s crinkled little rosebud, and the buxom adult baby was wriggling over his knee in response, her face reddening. Susan smirked to herself, sensing Barbie’s embarrassment. So the little sprat does still feel shame, she thought. Well, let’s see how she reacts to this, she smirked moments before suddenly popping her finger into Barbie’s tight little anus.

     “Ooooo!” Barbie squealed, humiliated by the sudden invasion of her privacy and seized with a sudden, overpowering arousal. With a groan, she involuntarily thrust her hips, grinding her pelvis into Dan’s leg and leaving behind a noticeable wet patch on his thigh.

     Susan grinned when she heard Barbie let out a slutty moan. For a moment, she simply held her finger in place, allowing Barbie to thrust and squirm against it. She allowed the exhibition go on for a long moment before beginning to work her finger back and forth, in and out of the tight little rosebud of her asshole.

     Barbie found herself alternately groaning in mild, infantile embarrassment and moaning in involuntarily pleasure, grinding herself on Dan’s lap as Susan worked her greasy finger in and out of her tight little butthole.

     At last, Susan withdrew her finger, smirking at the sight of Barbie’s twitching hips, wiggling buttocks, and asshole shiny with KY. She took up the thermometer, long and thick, with a big, round bulb on the end, shaking it down and looking on at Barbies defenceless derriere with a superior smirk, relishing the opportunity to heap more embarrassment onto the helplessly infantilized Barbie.

     The former scientist, for her part, glanced back nervously over her shoulder, on some level sensing was was about to happen. Barbie swallowed nervously and shot Dan a hapless look, reviving a grim smile and a gentle pat on her bare bottom in response. “It’s OK, baby,” he said gently, and she wanted to believe him... but when she looked back and saw Susan’s slightly sadistic smile, she felt a profound sense of nervous anticipation.

     “Dan,” Susan said, her voice sweet and smooth, “would you mind reaching back and spreading her cheeks again?”

      Dan shot her a look, about to ask if she was serious... but he could see from her expression that she was, and he reluctantly reached back, took a one of her buttocks in each hand and spread them apart, fully exposing her tight, shiny asshole to the entire room. Barbie peeked back over her shoulder, her brow slick with sweat, watching with morbid fascination as the thick, rounded end, inched close and closer to her greasy anus.

     “Hold very still,” Susan admonished, pushing the rounded bulb into Barbie’s rectum and guiding it firmly into place up Barbie’s backside, twirling it left and right between her fingers as she shoved it home. Across Dan’s lap, Barbie emitted a squeal and wriggled, forcing him to loop an arm around her waist to keep her in place. She glanced back over her shoulder, her eyes wide, her mouth a tight little ‘o’ of shock, and Dan patted her back and murmured softly to her to keep her still.

     Barbie blushed, her bare butt stuck up in the air behind her, the thick glass cylinder of the thermometer protruding from her buttcrack. She was vividly aware of the cool tube in her rectum, and although it wasn’t exactly painful, it was definitely a strange sensation... one that filled her with a number of conflicting emotions.

     She squirmed and wriggled across daddy’s lap, teeter-tottering between the kinky arousal of being seen naked in such a helpless and embarrassing position and the humiliation of being placed into that same situation in front of the man she was enamoured with by a woman who appeared to be asserting herself as a romantic rival... one who intimidated Barbie with her sexy, self-assured maturity and professional confidence.

     Dangling across Daddy’s lap, bottom bare, the tip of the thermometer thrusting up proudly from her anus, Barbie found herself beginning to snivel and cry from the shame of her position... it just wasn’t fair!

     Dan her Barbie beginning to fuss, and reached back to pat her bottom reassuringly. “There there, baby... she’s almost done,” he said, looking around at Susan, who was standing by with a superior smirk on her face, in absolutely no hurry to end Big Baby Barbie’s distress.

     At last, Susan removed the thermometer from Barbie’s bottom, tugging it free in one swift motion that made Barbie buck and squeal over Dan’s lap, leaving him to try and settle her down by patting her bottom and murmuring softly to her, while shooting Susan a dirty look... all and all, she was being completely unprofessional, to say the least.

     “Hmmm... just a little bit high,” Susan lied, making a show of inspecting the thermometer. “Looks like baby’s got herself a bit of a fever. I know how to handle this...”

     “I really don’t think that’s the problem, Susan,” Dan said, helping Barbie to her feet long enough for him to stand so he could put her back on the bed and re-tape her diaper.

     “Dan, I’m insulted that you would doubt my medical training! Any doctor will tell you that the most effective treatment for a condition like this is...” she paused dramatically as she reached into her bag and produced a green bottle of liquid, “castor oil!”

     “What?!” Dan was aghast, staring at her with an open mouth. “Susan, that’s enough! I--”

     “Dan,” Susan said, not even listening to him as she set the bottle on the nightstand and rooted through her medical bag for a spoon, “would you be a dear and get me a glass of water?”

     Getting angry now, Dan stalked out of the room. “Don’t do anything until I get back,” he insisted... He’d had just about enough of Susan... she was acting almost as immature as Barbie.

     When he’d gone, Susan, bent over Barbie, who was still on her back on the bed, exhausted and shivering after her ordeal. Now the mean lady was looming over top of her, a superior smirk on her face, looking so intimidatingly grown up and womanly, and Barbie could only squirm and whimper to signal her displeasure.

     “I hope you’re still in there, you little bitch,” she sneered, “and I hope there’s enough of you left to appreciate what I’m doing for you. If you thought you were embarrassed before, wait until you have me to tease you all the way through your next dirty diaper explosion... and if you think that’s bad, just wait until I get to change you!” Susan gushed, thrilling as she thought about all the humiliation she could heap onto the helpless Barbie. She would see to it personally that Dan would be incapable of ever thinking of her as a romantic partner again... weather they restored her to her old self or not.

     Squirming on the bed, Barbie had reached her limit... in her nervousness, her bladder erupted noisily into her pampers, soaking them, causing them to grown warm and expand against her crotch. Tears soon followed, and soon Barbie was sobbing softly on the bedspread, utterly defeated.

     Nearby, The Colony had reach it’s limit, too. They had dispatched a smaller unit of nanites to follow and observe the subject and her interactions... and the project had been going well until this point. In it’s damaged logic matrix, it perceived the need to neutralize this threat... and, perhaps, an opportunity to expand their research onto the topic of “regression.” After placing a call to summon the rest of the Colony from their activities (namely exploring this new world, studying it’s inhabitants, and converting raw materials into new units for The Colony), a brief study of the subject “Susan” was made, where it was determined that she would be the ideal candidate for further study. A decision was made...

     Susan was still giggling at the sight of Barbie’s rapidly cooling pamper when she noticed the faint smell of ozone in the air. She felt a slight tingle, the hair on her arms rising. “What in the world?” she whispered to herself, a hissing, static crackle rising in the air.

     On the bed, Barbie’s tears trickled to a halt as she watched a familiar blue crackle slowly rise to envelop Susan...