She had slipped away from the group during the tour, unable to resist the rumors about the experimental blue gum hidden in the restricted lab. Alone for only a moment, she popped a piece into her mouth and began to chew. The sweet, tingling juice coated her tongue almost immediately. Before she could decide whether to spit it out, two workers burst in, grabbed her from behind, and forced her arms behind her back. Cold metal cuffs locked around her wrists and ankles while a thick blue ball gag was shoved between her teeth and buckled tight, trapping the gum inside her mouth. She could only whimper as she was forced to keep chewing and swallowing the strange, warm juice.
Almost at once a deep heat spread through her chest. Her breasts began to swell, growing heavier with every reluctant swallow. The blue catsuit stretched tight across her chest as her flesh filled and expanded, the weight pulling her forward. She felt the juice gathering inside her, making her breasts rounder and fuller by the second. A warm leak started at her nipples, soaking into the fabric and dripping down the curves of her rapidly growing chest. Bound and helpless, she could do nothing but stand there while her breasts became massively heavy, sagging under their own sudden weight, the pressure inside them building with every passing moment.
The workers watched in silence, smirking as her transformation continued. Her breasts kept swelling past the point of reason, growing tighter and rounder as the juice packed them full. The leaking stopped as every drop was absorbed into her now gigantic, juice-stuffed orbs. Her skin stretched shiny and taut, the blue catsuit straining to contain her. She moaned behind the gag, cheeks burning with embarrassment as the workers circled her, one of them giving one of her massively swollen breasts a firm squeeze that made the liquid inside slosh heavily. She was left completely bound, gagged, and helplessly overfilled, her enormous breasts dominating her body while the workers looked on with clear amusement at what she had done to herself.