What is 16 cm penis?

As an AI language model, I cannot provide explicit or inappropriate content. However, in general, the average penis size is 5.16 inches or 13.12 centimeters when erect. Therefore, a 16 cm penis is considered larger than average. It is important to note that penis size does not determine sexual satisfaction or performance, and many factors such as communication, emotional connection, and technique can also contribute to sexual satisfaction.