I remember when I was 12, and started getting erections. I really didn't care about it. But there was the fact that they felt kinda good.
One day, I had an erection, and looked at it, and was shocked. I wasn't really paying much attention to it, but it looked massive. It was probably 5-6 inches, but going from whatever I was before freaked me out, and I prayed and begged to God it would stop growing.
Worst wish I ever made.
When I was around 15, and discovered the internet, and began exploring what other people had, I was about 6.5, and I realized I wanted to be bigger. Ever since I was a kid I wanted to be taller and more muscular than everyone else. I'm tall, and always took pride in being taller than most people I met. When I was 15, I reached my full height of 6'2", and was happy with it, but wanted to be massive still.
Slowly grew over the last 10 years to 7.5, which I know I should be completely happy with. I have no right to complain, but those childhood wishes of wanting to be taller, more muscular, and bigger in every way have never left me.