You check on your sibilings and see that they are distracted by the television giving you time to try it out.
After a little thinking you decide to try your brothers underoos.
You go into his room and grab them quickly before sneaking out again.
Finally you head into your room and lock the door.
You see that you grabbed a spiderman underoo.
When you put it on it feels tight.
Suddenly you feel a slight decrease and see your room getting bigger.
It takes a while for you to figure out that your shrinking.
Soon your body goes through reverse puberty and loses the things you gained.
Finally your a 7 year old again.
You walk to your mirror and see a young prebuescent boy.
You pull down your underoos that now feel perfect to reveal a tiny dick with no pubes.
Feeling your body you feel smooth skin not a single body hair.
You can't believe your a kid again.
Suddenly Someone knocks on the door its...