Madame Marissa - Training the slaves breath by facesitting

Ive thought of a little challenge for the slave – Ill sit down on his face and smother him under my ass – and stop the time how long he can last! And obviously I dont want to make it too easy for him and therefore I put on my tight hard jeans for this test. My ass flattens his nose and completely prevents him from breathing when I sit down on his face with my full weight – and then well try to increase the time! To be a comfortable seat for his mistress, hell have to endure longer than just 30 seconds … and Ill train him to hold his breath way longer! I dont care how much he struggles, whines and begs … hell endure it as long as I want to!