The beginning of the masturbation control or JOI (Jerk-Off Instruction) clips started about this time. It was the typical way of finishing (if allowed at all) in professional sessions, so much so that it became a bonified fetish in its own right.

Not knocking it, though; I get it–a sensual voice that flips to being strict causes heightened adrenaline levels. Stress and pleasure as in a whole SM session without my having to move.