If i started at 3-4 inches in length is it possible to get 7 in full erect length . I just want to know because it would really help me. I want to be around 7 or 7 1/2 when im fully erect. Right now i can almost get to 6 inches when fully erect. I still think something is wrong with my penis. I've seen it shrink to 3 inches in the shower . Thats not a good thing for someone who is trying to build confidence. Anyways does is anyone know if you can be 4 inches flacid and get a nice satisfying 7 inch hard erection? Please help me out. Thanks.