"I really need that stone." You said with a stuttering voice, "please if you found it. " He looked at the girls with whimpering eyes. The girls looked confused not quite as sympathetic as you had hoped, clearly these three weren't of the highest class of virtuous people, empathy must be somewhat alien to them. You almost got angry, you glanced at your body's pockets wondering if it was in one of them but before you could steal it from your body.
The kid suddenly your body grabbed you by the arm. "Sorry girls, I'll talk with this little guy." You heard your own voice utter mellowly. He took him to a nearby forested area with some privacy. "This is your body, isn't it? Don't bothered answering, I already know." You stared at him with big eyes. "I was confused being in your body all of a sudden, I wished to know what was going on and here we are." You glared at him. "Then give me my body back." The kid shook his head. "I know everything, guys like you that would hitchhike somebody's body without thinking of the moral implications? You ever though of how my life was with that thing? How embarrassed I've been? Don't bother answering, You don't, after all I already wished for all your memories to be mine."
You grimaced. "I'm sorry, okay, can't you just wish me back to normal now? You can make any wish, you can improve your life." The kid grinned. "I'm fine with the current situation. As for your punishment... since you wanted to feel how it is to be a hung young teenager how about you experience it first hand growing up? I'll even make you even bigger than me... with a twist: you'll retain a bit of your erect size as your new soft size" You gasped. "wait, what, no...". Suddenly, you felt dazed, and you walked away. With a start, you realize that you're now stuck as a young teenager - barely 13! - but with a large bulge.
Strolling through the park, you look for someone that looks similar to you, until you find an older woman, who you assume to be your mother. Thankfully your assumption was correct. "Where'd you go off to?" she asked. You replied that you were just off to the bathroom. "Well come along, I've got to go do errands so I'll drop you at home". And with that, you went to the car with her.
As you drove, you kept thinking about your new body. Your eyes kept darting down to your shorts, where there was a definite lump in between your legs. Finally, your (new) mom pulled into the driveway and let you into the house. "I'll be back in a few hours, will you be ok?" she asked, and on your affirmation, she left.
Finally alone in your new house, you explored. It was a fairly small house, but modern and fairly well decorated. You found a room labelled "Noah's Room" and upon opening, immediately knew it was your room. It had your clothes and bed. Rushing over to the drawers, you noticed a lot of shorts and T-shirts. You noted that you had a lot of underwear with a pouch in the front.
Speaking of your body, you rushed to the bathroom to look in the mirror. Staring back at you was a cute and young (maybe 13 if you had to guess) teenager, medium height and build. You had a few freckles on your face, but you were fairly unremarkable otherwise, with one exception. Even with your (in your opinion) fairly baggy shorts, there was a definite bulge showing. Tugging off your shorts and underwear (which also had a custom pouch) you were again facing your cock. Placing a nearby ruler next to it, you realized that it was long - around 6 inches soft - but not very thick, about average thickness for someone your age.
Almost as if by magic, your cock began to swell as it grew erect, growing longer and thicker and standing straight up. Finally it stood erect, rock hard. You measured again and found that it hit a full 8 inches erect, but was still fairly thin for its length. Eventually, it began to go back down, but with a start you realized that it wasn't completely going back to just 6 inches long! "No... no..." you cried out as you watched your now just over 6 inch long softie hang down. You stuffed it back into your underwear and realized that your penis created a defined bulge in your underwear.