Re: you guys know penis length doesn't matter?
I feel that Austin has got more a factual argument. I once had sex with a guy who was 3-3.5 inches at age 18 and no it was not as good as sex with a guy who was larger. Nor did it "hit the wall" as you put it.
However Austin, your language at the end of your post was uncalled for. He's 15 and still has things to discover in the world. There's no need to get offensive.
~ The journey of a thousand miles begins with a single step ~
* Nothing in the world has ever been accomplished without passion *