And then, one night, the inconceivable happened: Marcus found his  slave at the garage corner where he had fastened it a hour earlier,  deeply asleep, but sporting a huge erection and ejaculating. A puddle of  semen had already formed on the floor, and abundant cum was still  slowly oozing out from the swollen glans. It was true that, in the three  months that boi had been part of Marcus’ property, it had never been  allowed to touch itself, let alone to cum. However, this loss of control  was unacceptable in an expensive trained slave, and had to be heavily  punished. Ten minutes later, the contemptible servant was receiving the  hardest and longest whipping it had ever endured.     The  following morning, Marcus rushed to the slave store to find a permanent  chastity device for boi. He chose Chastiknot®, a new model that included  thorough penis piercing but didn’t impede urination. Chastiknot® was  only suitable for slave penises above a certain length, but this was no...