Definitely so, and I actually get it from both sides. I know it ostensibly comes from the maternal side, but my father's dick is basically a carbon copy of my own. When I had to go into his bedroom for something. He was asleep, the covers were thrown back, and he has hard. His dick was the same as mine - same shape, same size, and same big head. Again, he was asleep, and there were no sexual overtones.
I used to jack off with one of my cousin's on mother's side, and he was very large, too. I'd guess 8" and thick. This was when we were teenagers. The idea of doing it again doesn't appeal to me at all.