Re: friends penis size
I've averaged the pensi sizes of 13, 14, and 15 year olds using vt surveys in the penis Q n A thread, no look there for average.
Second, why do you care? It's a reproductive organ, no matter what the size they all function the same. Look in the size matters thread to read further about that.
Sorry if this wasn't helpful, I know your curious, it doesn't really matter though, you can ruin a friendship trying to perv on each other.