"You have to be very careful with with Bimbo Potion. The effects scale exponentially with dosage, so even a little bit too much or too little can end up with different results than you wanted - aaaaand you just downed the whole bottle."
The timer rang, snapping Bella out of her concentration. Had it really been an hour already? She put a bookmark in and closed the cover, pushing it back on her desk before reaching her arms above her head and stretching her back. The stool legs scraped along the stone floor as she pushed back from her desk and stood, swinging her arms to stretch her shoulders. She picked up her mug and took a sip of her drink, letting it rejuvenate her. "Alright, time to check on the patient."
Amelia was exactly where Bella had left her. She hadn't moved a muscle, though that was largely because she didn't seem to have any muscles left to move. As far as Bella could tell, no one had ever taken that much bimbo potion at once and the results were fascinating.
Flickering torchlight danced across the smooth, plastic sheen that covered Amelia's skin. Bella grabbed Amelia's wrist and lifted her arm, listening to the joint creak. When she let go, the limb stayed perfectly in place. Her eyes, bright and glassy, looked vacantly at nothing in particular, staring off into the distance, unmoving and unblinking. The rest of her face was frozen, too, her plump, full lips parted slightly. Bella used her thumb to tug down Amelia's bottom lip and expose the inside of her mouth. The whole thing had been transformed, now merely a hole with ridged walls disappearing into her head.
With the effects compounding exponentially, Amelia had been pushed to the very extremes of bimbofication: she had become little more than a fuckdoll. Incredibly lifelike and almost disturbingly detailed, but a fuckdoll nonetheless. Nothing in her research had indicated that the Bimbo Potion could do this, so what she was seeing was really uncharted territory; there weren't many books that would publish her research, but it was at least interesting to her. The potion's effects weren't meant to be permanent and they would wear off over time. With how much she had taken, though, how much time was completely unknown, so Bella made sure to check on Amelia's state every hour or so.
Bella moved down to Amelia's chest. The breasts that rose there were a far departure from the B cups that had once sat there. These were full and round, big and almost painfully fake. The term "bolted-on" had never seemed more apt, with a clear outline of where the balloons of her tits sat against her chest and her ribcage. Her waist swept inward, giving her a perfect hourglass, before flaring out again towards a pair of unnaturally wide hips. Amelia's ass stuck out behind her much in the same way her breasts did in front.
Once again, Bella returned her gaze to Amelia's breasts. They really were spectacular. So perfectly round, so perfectly fake. She had outdone herself with that potion, even if Amelia had taken far more than she had ever anticipated. Her eyes looked up at Amelia's, empty and doll-like. She bit her lip. Amelia was a doll... She had agreed to make Amelia this potion out of a barely sublimated attraction... This was a golden opportunity. She might never get the chance to do this again. Bella swallowed and reached a shaky hand up towards Amelia's breast. She held it for just a second before working up the courage to give it a gentle squeeze.
Bella recoiled, pulling her hand back as if it had been burned. Her heartbeat spiked and thundered in her ears. The sound itself was poorly defined and unclear, like a muffled breath, but there was something more to it. Bella looked again at Amelia's face and was surprised to find it changed. The doll's pale cheeks now carried a rosy tint and her eyes seemed just a hair wider. Bella swallowed. "A-amelia? Are you in there?"
A few, long seconds passed without any kind of response. Bella wasn't sure what had happened. The breasts definitely weren't filled with air, so it's not like she was squeezing air out of a balloon. Clearly, Amelia had reacted with some degree of arousal to her touch, but what was going on inside the doll's head Bella had no idea. It was only once the adrenaline had started to subside that Bella realize that Amelia wasn't the only one feeling aroused. Her hand shook and her thighs rubbed together. She took another drink before setting the mug aside. A deep sigh almost exactly failed to calm her nerves. "Please don't hate me for this, Amelia..."
Crouching down, Bella put herself closer to Amelia's crotch. She spared a glance upwards towards Amelia's face only to immediately look back down again; the doll's face was completely blocked by the forward projection of her tits. With trembling hands, Bella hooked her fingers into the panties that wrapped around Amelia's hips and slid them down. They didn't come easily, but they did come down eventually. Bella's cheeks ached from blushing at the sight of her friend and crush's pussy. It was smooth and vaguely plastic, a toy like the rest of her. She tried not to think about how the bimbo potion might—or might not—have changed it. What shocked her, though, was that the soft mound didn't just shine in the torchlight; it glistened.
Without thinking, guided by a mix of curiosity and arousal, Bella reached out and dragged a finger along the lips.
Amelia's whole body shook.
Bella shot upright again, looking at the obvious arousal on Amelia's face. The pink on her cheeks was deeper. Her eyebrows raised. She looked pathetic. She looked needy. The changes were subtle, but they were clear. Bella breathed out a shaky sigh. She could feel her own need taking over. She could feel her better judgement being washed out by the riding tide of her own arousal. She reached out and traced a finger in a tight circle around the bump that was Amelia's plastic nipple.
The edges of Bella's lips curled into a smile tainted with mischief and desire. "I tried to warn you, but you drank the whole thing, so... On some level, I think you wanted this."
With her other hand, Bella slipped two fingers into Amelia's fuckhole mouth and felt a subtle tickle of air rushing out as the walls around her fingers squeezed gently inward.
"Y-you are a doll, now, Amelia... It would be a shame not to play with you a little bit... Don't you agree?"