"Well, let's get started! I need you to stand on that machine" she pointed to a kind of chamber with a glass door opened, Dan followed her instructions, standing in the chamber the door closed.
"What's this stuff for?" He tapped the glass door.
"Don't worry, just a little fun experiment" she blushed and giggled, pulling a lever.
The chamber started to emit a strange white gas covering all the inside of it, Dan couldn't see anything as the gas covered his vision. "Sarah! What's this!?" He yelled but the gas sounds were louder. Less than a minute later the door opened and the gas disappeared, Dan couldn't not move as a giant layer of clothes were on top of him, for his surprise he was completely naked, trying to get out of his situation.
The giant clothes were removed, then Dan saw a giant hand removing them revealing to be Sarah's hand. She held Dan with two of her fingers from his torso. "How are you feeling little boy?" She was blushing and smiling looking at him.
"What the hell did you do!?" He tried to get out of the giantess fingers but it was useless.
"Don't be silly" she giggled, "Isn't it obvious? I shrunk you! Now you are my little and personal guinea pig!" She laughed.
"Why are you doing this?"
Sarah moved her hand holding him into a small glass jar dropping Dan inside, it was tall, hard and heavy enough to make sure he didn't escape. She dropped her lab coat exposing her completely naked body, rubbing her vagina. "Oh Dan~ now that I have you like this I can test many things of the human body, or my female one" she kept rubbing her clit in front of him.
"What do you mean!?" He punched the jar.
"Well, I want to see how strong human body is, I could eat you and see if you can survive the travel or tragically digest, maybe I could make you small enough to put you inside of my nipples, I also have some age regressing pills, I could make you swallow one and put you inside my vagina to see if you regress into one of my eggs" she began to masturbate, "or simply piss in your jar to see you swimming there" she laughed.
Dan was absolutely scared, "this bitch is absolutely crazy" he thought, afraid of what she was going to do with him.
"I have made my decision~" she stopped masturbating, ready to start her new experiment.