Have you guys done it? What's the secret of doing it continuously?
I have not, and do not intend to do so. it can be harmful, you're going to make your prostate explode! besides, spending two straight hours jacking off at JAV/porn seems to me like a big waste of time! but that's just me....
I did not for 2 hours but something like 30m to 45m and the "secret" is that each time you think you're ready to jerk-off, you stop masturbating letting the pressure go down. Then you do it again and your repeat the processus as much as you want. In the end you'll cum everywhere in the vicinity and you'll get much more pleasure out of it.