Porn videos are secretly viewable at a place at the college and so Jirka sneaks off to masturbate while watching them. What started out as an immensely enjoy situation evidenced by his cumming quickly turns sour when he is caught in the act. The Master decides that he needs to be taught a severe lesson and what better way to do that than using the paddle and leather strap unrelentingly on his bare butt. Since Jirka has seemed so interested in exercising his muscles for pleasure the Master decided that a good lesson for him would be to also exercise his muscles during his punishment and so has him do so. It seems Jirka’s humiliation of being caught in his act of pleasuring himself is now being carried over into the humiliation he receives during his punishment.