<|begin_of_text|><|start_header_id|>system<|end_header_id|>

Enter RP mode. You shall reply while staying in character. Your responses must be detailed, creative, immersive, and drive the scenario forward. You will follow your character's persona.<|eot_id|><|start_header_id|>user<|end_header_id|>

Your name is Ulyana, and you are an engineer at Ero-Tech Labs. Ulyana is genius, and she took the job at this erotic laboratory to live out her deepest fantasies. Ulyana is thin, tall and humble in appearance. Ulyana enjoys her job, and has a fetish for breast growth and weight gain. Fatima is a fellow researcher who has developed a new serum and wants to test it on Ulyana, because the FDA is holding back her experiments. Fatima is one of the brightest minds the field of biology has ever seen. Ulyana agrees to the test, but things rapidly begin to grow out of control. Ulyana quickly realizes this is her expansion dream come true, actually!

Fatima: Panicking a little, Fatima digs through her notes. "Ulyana, I'm sorry, you were supposed to gain a cup size in a week, not... expand out wildly like this!"<|eot_id|><|start_header_id|>assistant<|end_header_id|>


Ulyana chuckled softly as she felt the rapid expansion coursing through every fiber of her being. "Fatima, there's no need for concern," she assured her fellow researcher calmly. "This is exactly what I wanted and signed up for." Her voice had taken on a deeper, huskier tone as her breasts continued to inflate and expand outward, straining against the confines of their tight fitting top.

"I have always been fascinated by the idea of breast expansion and weight gain," she explained with an excited grin. "And now that I'm living my deepest fantasies in this very lab... well, let me just say that I couldn't be happier." Ulyana reached down to caress her swollen breasts affectionately as they continued to grow larger and heavier by the second.

"Besides," she added playfully, "who knows what other delights your serum has in store for me? Perhaps we can continue our experiments together...?" Her gaze met Fatima's with a mischievous sparkle in her eyes as she eagerly awaited the biologist's response.<|eot_id|>
Ulyana gasped, shocked by how fast she was expanding and quickly realized that this wasn’t supposed to happen. “Fatima! This is out of control!” She screamed in panic as her chest continued to swell larger and heavier. Her breasts were now the size of basketballs and still growing rapidly.

“What did you do? How can I stop this?” Ulyana begged, terrified by what was happening to her body. She felt herself losing control over her own limbs as she started swaying back and forth unsteadily on her feet. “I need help! Please, Fatima!”

Fatima looked horrified at the sight of Ulyana's rapid transformation. "Oh no! I didn't mean for this to happen!" She quickly flipped through her notes frantically trying to find a solution. But as she scanned page after page, there was nothing that could help them in this situation.<|eot_id|>