www.deviantart.com/art/Slave-B…"The slave was not permitted to look into his Mistress' face...."
The fact the mistress isn't even wearing a mask can only mean she is a very sadistic mistress indeed. Some mistresses would have the decency to cover their faces to make the job at least somewhat easier for the slave.
Not this one. She puts the entire burden on the slave to keep his eyes off her face at all times or suffer the consequences. That's fucking brutal.