I have been doing Penis Enlargement on and off for a few years. There is only one problem I am facing which stops me from doing the exercises. Basically I want to do supra slammers but I can't stay erect for long. It gets soft. And I can't rub hard or I will get close to ponr very soon. Secondly too much time is wasted getting it erect. Outside of the washroom I don't have any problem getting an erection and keeping it for a long time. I think something erotic and I get a hardon, but it's only when doing the exercises, I face this problem. In the past I used to try adult entertainment for this but I am done with adult entertainment because it screwed my brain. I get a video,bored,get another one. I want some way to get erect without adult entertainment. I am sure there are other guys with this problem. Help us out folks.