For an adult, the average erect-penis size is somewhere in the vicinity of 6 inches (15 centimeters). For information on average penis growth as a male passes through puberty, your fellow readers can answer that – see the JackinWorld Puberty Survey. (For more, see JackinQ&A – Questions About the Penis.)
What do you think about when you masturbate or have sex? Would you tell your significant other if they asked?
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What's the average penis size for someone my age?
