LOL Redshoe,
Dank, I have been asked this so many times in my life. It is not all about how you use it or how big it is. Kinda a combo thing.
For me, and I believe, most women. It's about the guy himself. If you are really into him, it's going to be good sex, regardless (unless he just hasn't the slightest clue LOL). I've never measured any guy so I don't know for certain what's average.
You guys are so caught up with length that you forget about width LOL. That's important too, ya know.
If I had to guess, I would say maybe 6 inches hard? But as I said, I am no expert LOL. And if I liked a guy, I wouldn't give a shit one way or the other....within reason. A college buddy of mine slept with this guy that she swore up and down, no exageration, was no bigger hard than her pinky finger. Now that might be a lttle hard to work with
.