Okay people. Do NOT listen to the sandpaper guy! Hours of long tantric pleasure without cumming is 100% attainable without road rashing your penis. I repeat!!! DO NOT USE SANDPAPER! And if you entertained that for even a second.... 0.o !!!!!! Maybe you should go ahead an try. "but you don't have to take my word for it."
Edging is something that I have been using my whole life. In fact I didn't even know it was called that back in the sixth grade when I realized by accident pinching that little pee muscle could make me masturbate longer and longer. I bagan challenging myself by seeing how long I could last. Like ALL boys and young men, I felt like every chance in the day I wasn't doing something, my dick was in my hand. Lol. I promis you that bringing yourself to that cusp, and then pulling back will build and build more cum inside. When YOU choose to explode, fair warning, make sure the plastic is laid out. Hell, just last night I happily masterbAted to porn for about an hour and a half. When I WANTED to cum, a good five solid streams from the head of my penis to my face. (by the way, when you cum that hard woman CAN feel it inside and mine cums twice as hard because of it) oh and also (any man who swears up and down they have never tasted their own cum needs to either relax a bit because it isn't a bad thing to hit yourself in the face a time or two on accident, or seriously start practicing edging pronto.) it helps to have a cum hound like my girlfriend. She loves everything about cum. The smell, the taste, the texture, and above all feeling it cum out of her. So lasting longer and exploding harder is a real insantive for me and her.
Don't forget, no matter how long you last, if you cum three times a day.... You may be able to split atoms with your wad, but there wont be much of it. If you can learn to cum without cuming, you even better off! Just pinch the PC and go past the point of no return. Throb throb throb.... Nothing comes out! All the ups of cumming without the mess. And adding to your stores for when SHE wants it inside, on, near hear. Or maybe even or in orbit. Lol!
BEST OF LUCK!!!