Choke or squeek - Long CBT & hj session

My specimen is restrained again, ready for some tough love. pushing forward chokes him, pulling backwards is even tougher. his tied balls hold him still. most of the times the latter happened, as he instinctively tried to get away from my not so gentle hands.after a quite long session i put him on electro stimulation while jerking him and tormenting his electrocuted balls. his orgasm was the longest i've seen, or 2 in a row with a small break. i can't tell, he can't remember.