So, Tess is fiddling with the machine with the girls around. This could go in all sorts of fun directions.

Whoa! Why are these girls even bothering to fix the device? Sam is right. Let Tess's grandpa fix it.

Even if these girls are allowed to fix it, they should be supervised since it's kinda dangerous.

Tess kept saying it was broken, worn out, and then these random batteries just make the whole thing work again? Lol, really?

Janine trying to find a new toy while Tom is gone. Janine, pick me! I will gladly replace Tom while he is away. I can be your Tom!

Tess dropped the hammer on those girls. "None of you would have gotten to know my brother". Wow! I love the silence after it! Perfect!

Also, knowing the style of this story, you know someone will take that device while the girls are away.

Plot twist: Miss Harwood was on her daily jog when she recognized the voice of Tess. She approached the house (Yo Duggernaut, where are these girls, exactly? Which house? The dorms?). Anyway, Miss Harwood waits for the girls to leave and she retrieved the shrinking device. When no one is nearby, she tests it on a rock and it works. Then she tests it on a squirrel and it worked. Katie smiled with her new toy and decided to have some fun. Miss Harwood reached her place without finding a cute guy to shrink. She decided to resume her day and do some stretching outside when she noticed a pair of eyes face her from the corner of her eye. Being very fit, she ambushed the area and found a guy with binoculars in his hand. The boy looked like he was a late teen trying to spy on her. She gasped and grabbed his wrist and pulled him toward her house. He tried to pull free, but Miss Harwood was too strong. She dragged him upstairs to her bedroom and easily tied him to her bed. This boy had no idea what was coming. Katie began to strip, a smile on her face as she watched the boy watch with mixed emotions. She then ripped off the boy's clothes and left him humiliated and being tied up as he was, he couldn't cover himself. Miss Harwood laughed at the mere sight of his genitals and approached the bed, and crawling on top of him. She then sat on his face and forced him to lick her and worship her. She orgasmed on his face multiple times and soon she got bored. Miss Harwood pulled out the shrinking device and aimed at the boy. She pulled the trigger and he shrank to a few inches, same height as Tom. Katie giggled with delight, but then frowned as the boy began running to escape. He was free of his bonds for the moment and he did not want to find out what plans she had for him. Miss Harwood easily captured him since Tom had tried to trick her countless times. This boy was a novice and very predictable. The boy struggled in her grasp and Katie smiled very seductively, knowing what she was going to do very soon. This boy was spying on her, his eyes filled with lust. But now they were filled with fear as she lowered him to her private area. The began shouting soemthing, but Miss Harwood ignored him. She didn't care what he wanted or even to know his name. He was a creep and she was putting him in his place. Katie shoved the boy inside her, as far as she could until she could no more. His voice became muffled and soon, it was gone. She didn't care for this boy unlike Tom, so she didn't mind leaving him in there all day. After all, she could always shrink a new guy. Desiring more pleasure, Katie took a dildo and thrust it inside herself completely. She had no idea where the boy was and hoped he was deep inside her. With the boy and dildo both inside her, Miss Harwood put a smile on her face. Feeling satisfied, she put on her lace panties, her extra tight yoga pants and continued on with her day, always ready for Tom to be back in her hands, or pants.