The slave is fixed to the couch and at her mercy. Miss Yara tells the slave her plans. She wants to test her new electrical device. After the electrodes are attached, she gives the slave some more stimulation.
But then it starts. They start at level 25 and then turn it up higher and higher. Miss Yara has set herself the goal of pushing the slave to his absolute limit.
The pain is intense and not arousing. The current creates a biting pain in the cock. The slave is therefore put to the test. He endures the pain for his mistress, who seems to be enjoying herself immensely.
She turns the device up further and further until she finally reaches the maximum level. She is surprised to see that it no longer says the level, but only MAX.
She leaves the slave lying there for a while until she is satisfied and lets go of him.
