Lisa, the roller coaster Family's New Shrink Ray chapter 28 by copier · original author: 9kaiju9chaos9

After Lisa left the house, she was on her way to the mall were it where was the closer bookstore to buy the book that she wants, meanwhile Derek was inside of Lisa's sweater, just in between of her giants boobs, for him it was a bizarre and arousing experience, Lisa's breast were big, closer in size with Debbie's boobs but for Derek, who was 3 inches tall and only wearing a small piece of paper napkin to cover his lowers parts, just by being in that place was enough to stimulate him as his penis was hard erect.

"Oh jeez, I know that Lisa can't see me right now because she buttoned her sweater, but this is quite of embarrassing." thought Derek with a blush on his face looking down to his erection.

Lisa while she was on her way, she was oblivious that she was exciting her tiny brother that was trapped in between of her boobs, Derek on the other hand, while he was surrounded in his prision of soft and warm flesh, Derek on the other hand was having the desire to touch himself to relief his hardon, but Lisa's sweater was of a light color, a stain of his cum will be easily to spot, so he tries to resist the urge, Derek then turns to look in front of him.

"Maybe...If I can't relax myself, maybe I can play with Lisa's boobs in the meantime, I mean, she won't notice me if I suck her nipples right?" thought Derek aroused as he was about to move his body to the front, to go to Lisa's right nipple, but suddenly.

"Derek." said Lisa in a low voice looking down to her chest.

"Ye-yes?!" exclaimed Derek surprised and scared when he hear his sister's voice, thinking that his giant sister discovered what he was about to do, to her sister his voice was just a cute squeak, barely audible while he still trapped in her boobs.

"We are in the mall, I going to haste my walk, so get hold on in there ok?" said Lisa to Derek as she starts to walk faster.

"O-ok." replied Derek blushing nervous to Lisa in relief that she doesn't know what he was about to do to her.

As Lisa haste her walk, her boobs start to bouncing around, of course with this happening Derek was having a hard time in between of Lisa's breasts, more than exciting him, he was getting sick by the movement, the dizziness, the heat that he was getting from being inside Lisa's sweater and the up and down movement of Lisa's boobs, if this continues he soon will throw up his lunch.

"I have to do something quick, or I will end up messing Lisa's sweater." thought Derek as his face was getting green.

Luckily for Derek, his body was sweating a lot and when he tries to move around in between of Lisa's boobs, Derek's tiny body slips down to her sister's belly, in the process he loss the paper napkin that he was wearing as he continues going down, he slips in her skirt and his body end up inside of Lisa's panties.
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November 12
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