Cock size, hmmmmmm. 'Size' of anything is important to Americans. Fastest car, biggest motor, biggest steak, thickest steak, most money, biggest house, etc.I can go on and on.
I'm bi. I suck cock. I suck a lot of cock. 2 examples, the year before CL stopped ads (2019) I sucked almost 70 different cocks, many repeats. Just yesterday I was lucky enough to blow 3 different guys.
Most guys aren't honest about their dick size, they lie, either too big or too small, NEVER NEVER are they accurate. I know inches, I know stretched my pinky tip to thumb tip is 8 1/2", I know my fist forefinger to pinky is 3 1/2". Most guys range from 5"-6 1/2". As far as girth, most guys are slightly less than the diameter of a tube of toothpaste which is about 1 1/4" diameter, that makes them about 1" in diameter.
The largest I had was a true 9", pubic bone to cock tip. I also did a guy that was about 6" but his cock was think, VERY THICK, my estimate about 2 - 2 1/2" in diameter, hurt my jaw working him to orgasm.
Now the downside. Sucked a guy a few weeks ago, he said he was small, I figured he was lying, UNTIL he showed up. He was small, tiny actually, a first for me. Without exaggeration, he was shorter than a bic lighter and about the same girth. Haven't seen a dick that small since I was a child. I felt bad for him.