Hi, I am 17 going on 18 and I realize that this question may be hard to answer but is it truly possible to increase the size of my penis? I don't want pills, pumps, surgery, ext. I have done research and have found one blog that makes descent sense and it is to use natural body supplements that your body used to grow during puberty. These are choline nitrate or phosphatidyle choline (I think), HGH spray, tyrosine-dopamine, l-argnine, water 3 liters and an evening primrose - PGE -1 precursor.