Two questions: Say (hypothetically) you were an average guy, 6" X 4.5"....( yeah, i know thats a horrible size but just go with it) 1.) If you did enlargement exercises of any kind (jelqing, pump, etc), and you noticed increases in size, if you STOPPED doing those enlargement exercises, will you revert back to 6" X 4.5"? Basically, are gains permanent? 2.) If you were inactive (ie: you didn't masturbate or do anything to exert your dick), do you decrease in size? Basically, if you don't use it do you lose it?