Aug 8, - No one masturbates for hours. Its a BAD HABIT and this will make things worse for you. If you get erect again it is because you are not allowing the penis to rest. Erections happen due to increased blood flow in the penis. Sep 1, - You can't assume that a dude with a big, limp penis gets much bigger In fact, vibration is so effective on the penis that often men with spinal.