I once saw a bottom who was tied-up on a spanking bench get spanked to the point where he lost bladder control. Needless to say, the bottom was completely humiliated when his untouched penis began spurting piss, but all the Top did was laugh at him and call him names, while continuing to spank him until he stopped pissing. It was great how it began, too, because at first just a little squirt came out, so you could see the bottom trying like crazy to remain in control of his own bladder, but within a minute he was spraying like he had never been diaper trained.

To this day, it remains one of the hottest things I've ever seen.  It was so unexpected, and so humiliating, that I nearly came without touching my dick. Seeing a bottom piss himself while getting a spanking in bondage was a supreme prime example of losing control, while submitting to another man.

Also, while what I saw was in an intimate setting, it would be infinitely hotter to see it done in public.

Anyone else get into this?