There is no way to reduce the size of the penis if it has developed naturally. The female vagina is very stretchy, so you don’t have to worry about a large penis having a negative effect on your sex life. Generally speaking, when you have sex, don’t be too rough, there won’t be any tearing, and the female vagina has another role to play is childbirth, the fetus needs to go through the birth canal to produce out, so the penis size is relatively large will not bring harm to the female. Another important thing is to see whether their sex hormone secretion is too much, testicular abnormality, which leads to excessive secretion of testosterone, these hormones can also lead to excessive penis development, if necessary, you can go to the hospital to do some relevant examination.