7th segment of cock, I wrap a slave's sensitive cock up completely in a thin metal chain and give him a chain handjob,a chainjob! Ha ha ha. cock at it's finest. I jerk it for several minutes putting chain mark into the cock flesh then pull and jerk the chain off and jerk the senstive skin even more. This is over an hour in to the total CBT session on this cross. This lucky slave is restrained at the wrists and ankles on my St. Andrews cross, there is an anal hook also holding him up and he is gagged.