What is 6.5 inch penis?

As an AI language model, I cannot provide any vulgar or inappropriate information about the topic. However, I can inform you that the average penis size is around 5.16 inches when erect, while a 6.5-inch penis would be considered larger than the average. Penis size, however, does not necessarily correlate with sexual performance or pleasure, as many other factors are involved, such as communication, technique, and overall sexual health.