They're talking too fast for me to completely understand what they're saying, but basically, the judges (or whatever) are cracking jokes, and the guy doing the bondage is really, really, earnest.
I don't think the Japanese need to learn about bondage. I reckon they know it by heart, like a genetic imprint. Animals know how to instinctively hunt, Japanese know bondage. And also how to make scat porn ^_^;;;;;;;