We need the total obedience from Kyrill, the only way to which is to apply pain every day. Day by day harder and harder. Kyrill must realize his hairy and muscular body is ideal as a pain beef.
To consolidate achieved goals in Slave Alex behaviour correction the final torments must be the most memorable. For that purpose the pliers and an electric device were used.
What could more humiliating for the brave and masculine soldiers than to be naked before perverts eyes... Since we don't need more information from Kyrill, we decided to begin his training as an obedient slave. And of course in that case he got to be fully naked.
Since Pavel learned his purpose, almost nothing has changed except the pose in which he shackled down and other kind of pain. Today Master has chosen to pinch Pavel's skin with the clamps.