I remember camping with me mates. This short guy in our group always showed a nice bulge, and was always hard in his brief's when changing LOL. I was really curious if i was bigger than him. Well I found my opportunity. When on a hike together he stop to take a piss, I decide to piss too so I just stand next to him, pull it out and blatantly looked down at booth of us. I was thicker and longer, and i was very nervous to try this bold move, so i was as small as i get! That was quite a confidence boost.
He never said anything, in fact I'm not sure he even noticed at the time.......Then later that night, when the four of us were going to bed, he and I were in sleeping bag next to each other. He yell out, "oh god, oh god, Adam's Monster cock is attacking me, help!" everyone in the tent just started laughing, but at me...... I said, "right monster cock, I wish" then they all were saying, "no dude, your dick is massive, we're so jealous"
these Guys, i never thought actually looked at me in the change rooms or while swimming. I was mortified, was it that noticeable?! It's not like i was ever full nude flaunting around the locker room. I usually got changed in the corner, keeping to myself, changing quickly. Never knew other guys noticed at all!!
from that point on i just let it hang in the locker room, never worried about it again.