Hi doc I have a query how do I grow penis length and grith my erected size is 13cm I want it more big and fat?

See remark. I don't know how big a person you are, your penile shaft is about 6 inches................that'd pretty normal,perhaps more than normal.. I have never met a man who is satisfied with the length of his penis,and who doesn't to have it longer!!!!! BE CONTENT WITH YOUR LOT.