The two girls were quickly distracted as the sounds of the still masturbating Asian girl rose in pitch. Looking over, they saw her hips bucking wildly, her pert rear bouncing up and down off the floor of the store. A small wet slapping sound occurred each time her cheeks smacked against the ground; it was clear Lucy was dripping profusely from her cunt.
Michelle unconsciously put a hand to her mouth, shocked yet not repulsed by this display of wanton lust. Her other hand slid down, softly rubbing against her own slit through her new thong. Staring at Lucy's sopping cunt, she could see that Cynthia was really going to town down there. The bit of her that extended out of the writhing girl's folds undulated, twitched, and throbbed. Each movement caused sympathetic moans, jerks, and squeals from Lucy.
Looking more intently at that bit that was hanging out, Michelle could see Cynthia's bottom end had swollen slightly, looking almost bulbous. Her own ministrations picked up speed as Lucy let out an even louder moan. She failed to sense her nightie pulling tighter about her form, no longer flowing loosely. The end of the nightie fluttering pleasantly about her ass cheeks.
Ginger looked at both of the girls near her, each in different stages of masturbation...or sex if you counted Lucy's "toy" being made of Michelle's friend. The redhead glanced around to see what Heather was doing, but the girl seemed to have wandered off to inspect more parts of the store. Ginger clenched her fists and bit her lip, toes scrunching against the soles of her stilettos as the buzzing feeling continued along her outfit. The soft, creeping tingles of fabric stitching itself into existence further and further down her thighs.
Her nipples in particular felt like someone was lightly rubbing or flicking them in turn. Her left hand slid up to scratch at the sensation, but what she felt made her turn her neck down sharply toward her chest. The fabric had pulled so taut about her breasts as to be form-fitting, her nipples pressing insistently against it. Even as she watched, her left nipple seemed to expand slightly, and her mind struggled to comprehend what she was seeing as it pushed through the nightie as though it had never been covered in the first place.
Only, it was now green, and was changing further. The surface was becoming smooth, changing from skin to hard plastic. Her knees trembled horribly in pleasure as its whole shape shifted outward, becoming a heart-shaped green button sitting atop the fabric.
"Wha-what the fuck!?" Ginger muttered to herself in horror, her right nipple following the lead of the first, quickly matching it in shape and form. From beneath her new "buttons", soft white ribbons of fabric appeared from nothing, quickly revealing themselves to be cute bows, their ends fluttering slightly an inch below the heart shapes of what used to be her nipples. The hand she had originally reached up to bat at tingling sensations now tentatively made contact with what had been her nipples. Her hips bucked uncontrollably as she made contact, and she teetered dangerously in her stilettos before regaining her composure.
She had felt it! Both in the plastic and the fabric ribbons, she had felt her fingers brushing up against them, and the touch had brought a shock of pleasure to her. Ginger's hand jerked away from her button nipple, a small whimper of mixed pleasure and frustration sounding in her throat. The redhead peeked further down, sticking one leg out in front of her just as the pastel green fabric slid smoothly over her knee, unceasing in its march to her toes. A small rustling at her shoulders drew her gaze back up, and she saw some ruffles had appeared about her shoulder blades, and from underneath them soft pastel fabric was threading its way along her upper arms, creeping downward.
She looked at Michelle again, desperate to share what was happening to herself, and as she looked...also keen to warn the other girl of the now pastel blue teddy that her own outfit had become. Michelle's blue thong and nightie had successfully merged together into one garment, and had pulled itself tightly against her body. Her ass was completely blue as the fabric moved downwards, already down her thighs at the length of a pair of boyshorts. Michelle didn't seem to have noticed, and from how intently she was rubbing at the fabric covering her crotch, all the while watching Lucy get railed by Cynthia, Ginger doubted she had any attention to spare.
Michelle rubbed furiously at her folds through her lingerie, taking great breaths through her nostrils as she did so. She barely felt the rustling of the fabric about her body, so transfixed was she on the helpless Asian girl on the floor. Cynthia was plowing into Lucy with an intensity that would surely have sent her through a wall if a body was attached to the "toy". The bulge at Cynthia's base had swollen greatly in size, quivering with each thrust, swaying with each throb. It jiggled in a way that could only mean it was full of something.
Cynthia's thrusting and throbbing reached a peak, and Lucy's eyes shot open before rolling back into her head as she screamed in pleasure. Her bucking became wild, any rhythm lost as she came in unison with the living dildo. Cynthia's form shuddered and pulsed, and with great undulations the bulge at her based shrank as she pumped Lucy full of the substance it had been filled with.
Lucy felt it splash inside her, giving her with a warm, pleasurable fullness even through the heavy waves of her orgasm. She reached one hand down and squeezed at Cynthia, moaning whorishly as doing so caused more substance to coat her insides. She shuddered a few times before her head lolled back in exhaustion and she lay there, panting heavily, twitching slightly, and barely conscious in a pool of her own juices.