What is a good pennies size for a 16 year old boy?

A good penis size for a 16-year-old boy can vary widely, as individuals develop at different rates. On average, studies suggest that the average erect penis size is around 5 to 6 inches in length, but it's important to remember that size does not determine self-worth or sexual ability. It's more crucial to focus on healthy relationships and self-confidence rather than comparisons.