Fucked by machines while master sleeps

When the master sleeps at night, or when he leaves for his dayjob, there will be no rest for his little slut. Fucked by the machine for hours long. When the master finally turns off the machine and unties his little slave, her ass in fucked raw and numb, she can hardly walk or sit anymore. But that´s no excuse for the master, he needs his fuckhole ready for him 24/7