It is a huge honor when I jerk off a slave at all. Obviously, I expect him to be able to take some pain on his dick. It's so much more fun to jerk a cock that I can hurt as well. In return, I reward him with a lot of spit on his dick... Besides hitting, I also enjoy pulling the balls down or using my nails on his tip... I strictly bind his balls and his cock with cable ties. As his dick turns blue, I wonder if my slave is able to have an orgasm under these conditions? If not, he will receive more CBT.