Some years ago I managed 5 but was stroking like crazy minutes before the end. I can still do 4 if I plan the 24 period out well. The best wank sessions are when there is no pressure to beat that record though of course.

When I was a younger man, I managed to knock out eight in one 24-hour period. By the end, though, the only thing that came out of my cock was a little flag that said, "Bang!"