The question wasn't - "are guys with bigger dicks hornier?"
It was more akin to - "does having a big dick contribute to YOUR sexual addition?"
I can say that it does for me. I can be walking home from a hook after fucking a guy or girl, and just thinking about the encounter gives me a semi and, hence, a serious bulge. Once I feel that bulge coming up, the horniness just revs up. It's like my mind goes in this circle thinking:
my big cock just fucked him/her, knowing how well I filled them just makes it bigger, getting hard again means I need to fuck again b/c it needs to stretch out a hole, etc.
I am 29 and still need to cum at 3-4 times everyday. I usually that alone, but I still get a lot of action. Even alone, as I am cleaning up the ropes of jizz off my chest and squeezing the last drops out of my cock, I think about having this big piece of meat and it starts to chub up again.
I think that guys can be horn dogs for a hundred different reasons - I am happy about that. I just let my knowledge of my size ratchet my sex drive up a notch.
Funny, when I'm interested in another guy, I don't care at all about his size. His face and chest a much bigger turn ons for me. I also don't think of his size having any correlation to his masculinity. However, when I gaze down at my own fuck stick it makes me feel good about my own manliness. With other guys, I get sweaty thinking about the manly aspects of their broad, hairy chests.