You approach the machine and tell the girl that it does not look like anything known. She answers "I'll see inside, anyway it does not work so it won't turn itself on while I'm in it." She opens the door and enters the "tube".
You examine the panel while she continues to go into ecstasies in front of this scientific masterpiece. You notice the controls are still intact after all these years, there is no disconnected wiring too. You are asking yourself if this machine is in fact working from the beginning.
You look up at something else, while the howling of a siren makes itself felt. "ALERT! SUBJECT NOT AUTHORIZED!" The door closes abruptly and the tube fills with smoke. The girl starts to drum on the wall and tries to scream. The machine seems to start, but does not work as expected? "SECURITY FAIL, LAUNCHING RESTORATION!" .
From the girl's point of view:
You have just heard this disturbing message, and you do not know what to do. The smoke stuns you, and your body fills with a tingling. Does your body ... shrink? Your waist gradually decreases, and your legs are smaller. With horror you see your body begin to rejuvenate! Your hands shrink and your hips are thinner. As you pass the ages, you see your good chest begin to deflate. "Not my breasts!" you scream with your shrill voice. Your buttocks flatten and your vagina loses its hair. Your whole body is that of a child! You are definitely flat. Your lips are fine and your face is thinner.
That's when the process stops. The machine seems to have been stopped manually. The boy stopped it in time! You tell him "Do not look, do something, reverse everything!"
The machine starts again. "Inversion of modifications started." Smoke comes back just like feeling. A wave of pleasure seizes you. You grow ! Your body passes through its life, as your legs lengthen and your hands become more mature, your fingers becoming longer. Your hips widen and your cat resumes definition and pubic hair. Your face becomes more refined, your lips luscious, and your hair grow back. Finally, your ass gets bigger, and your nipples lengthen as two globes grow back and return to your good B-cup. "Finally" you moan.
You finally suceed to open the door and the girl quickly goes to hide herself behind a rock. She is naked ! The machine makes a deafening noise and the lab starts to collapse. She doesn't have the time to put more than a shirt and her panties with a jean. You exit the lab with the girl.
"Wow, that was certainly something. What shall we do now ?"