I used to P.E without warming up , whether jelqing or stretching and despite what ever people say I have had success. BUT tut tut tut ... I have realised what a HUGE MISTAKE it was , because warming up is essential for conditioning your penis for the workout that is about to be endured. At the beginning it mite not seem to affect you but later you will find out that your penis becomes too rigid to jelq and too rigid to stretch , compare that with someone who will warm up and he will say jelqing for him was SUPenis EnlargementRB since his penis was all spongy and engorgable. For stretching I dont warm up because I do my stretches on a spontaneous basis .. but I too realised my flaw and now warm up because warming up really does RELAX your penis making it more stretchable and more jelq able ... its like the STRETCHES before a Hardcore body building workout .... its the FOREPLAY before the nut busting sex .. Its the Climax before dropping dead asleep onto your bed ... that is how important warming up is to P.E
not to mention warm downs too