Hi I'm an average asian high school kid and I know that the stereotype for asian guys have small penises. My friend is an asian and I remember him having an 8 inch cock when he showed it to me (which was a long time ago though). Now I am really concered about my size. I am around 5 1/2 - 6 inches when errect and I think it's pretty small. Are there any methods for making the penis larger and does masturbating a lot affect the penis size? So about my asian friend....so is it genetics that determines the size?