and if a third guy, at least 35 lbs overweight had 7 VISIBLE inches, he'd look smaller than either of them.
But when it comes to fucking, the fat pad just squishes out of the way and the big guy's dick is an inch deeper than skinny or muscle guy.
Not saying that fat guys are bigger, just pointing out that even if they were, you wouldn't be able to tell by checking bulges, watching them in the changing room or peeking at urinals and you'd still get threads like this.
Sadly i'd have to lose a bit of weight to have 7 VISIBLE inches, i'm working on it...