ทาสถูกมัดบนเตียงด้วยเครื่องสั่นหวี

The slave had to tie himself up on the bed with his legs and arms spread. The last hand was tied with a lock, which only the master could open by remote unlocking or by communicating the corresponding code set by the master. Thus, the slave was completely at the mercy of the slave and with vibration on his tail.