When I discovered that this watch can change ages I decided to try one of my long time fantasies, to become s kid again. So, as soon as I arrived at home I went to my bedroom and took my clothes off. I already knew they would change with me while I regress, but wasn't fun. I wanted to see the whole process on my body.
Unfortunately I don't have a big enough mirror in my room, so I have to move to the bathroom. I was so excited that when I came in, I didn't see that my little 8 years old brother, Mickey, was taking a shower in the bathtub. Since, I used to bathe him, it wasn't too weird that I see him naked. However, it was completely different the other way. I always tried to be fully dressed when I he was around, so we can say the scene was just half awkward.
"Big bro, what are you doing here? You know I can take a bath by my own! I'm a big boy now!" He proudly say as he softly hit his thin chest with a fist. "And why aren't you wearing your clothes? I didn't know you are as hairy as dad!"
I ignored his comments for a moment while I turned the knob in the watch 8 times while I look at my teenager reflection in the mirror. It happened so fast that I didn't notice when my sparse body hair retracted back into my skin and my voice pitch turned higher. Fortunately, the boxers I was wearing turned into tighty whities so Mickey didn't watch anything he shouldn't, but he was still surprised that I had become a kid like him.
"Big bro, you are little like me! How did you do that?" He surprisedly said. That's when I decided to get some fun with him. "I want to try being the little brother for a day, but I guess I need a big brother." And before he could do a move, I took his hand and turned the knob 8 times on the other direction. "What are you..."
"Doing?" Mickey shouted but the last word came from a whole different voice. My small mischief was successful and my little brother was now a 16 years old teenager. The empty space in the bathtub was now occupied with his longer and hairier legs, and then I remembered he was naked and I was seeing his new manhood getting it's first erection. I don't know what to do now. Should I leave him alone so he can enjoy himself? Or should I stay and explain him what happened?