Fast gains… It’s just like “I want to earn 100,000$ per month!”. it is possible, but think about it. How much biomass (in cm3) must be produced by Your body to grow 1 inch?
Give Your body time to produce it. Don’t overdo it. Steady, slowly keep on growing.
How old are You? Are You going to stop using Your willie by 2014? I suppose You have time to gain. Inch in 1 year is a good gain in my opinion. 3 years and You can do gastroscopy during blowjob.
I think PE isn’t for pussies. I don’t want to offend anyone. Just work what have to be worked and You will achieve Your goal.