My brother and I are about the same size. I know because i saw his cock 3 days ago while out camping. My son is longer than me when hes soft. My dad isn't very long but is very thick.

Every dick is different.

My brother is 5 years older than me so when I first wanked near him, he was huge compared to me. The only other adult I'd seen hard at that time was Dad, watching Internet porn on the TV and he was a similar size to my brother. Now I'd say I'm about the same size as Dad so if my brother hasn't got bigger, we're similar sizes now. But that's just a guess.

My brother has a large cock. I saw him jerking off when we were younger back in high school. I always wondered why he had so many quality girlfriends and it made sense to me after that.