Facesitting In Jeans

Today the slave is going to worship my sexy jeans ass. He will feel it hard as a I deprive him of air. I sit down firmly, covering his mouth and nose. His head is my chair, just the way I like it! Haha! It must be torture for him and under me and I want to push him to the limit. The rough denim is abrasive against his face as I sit here powerful in my favourite position. Theres no reason why my sitting on the slaves face should be a pleasurable experience for him. How long can he endure not having any air? Lets test that .