CUSTOM REQUEST - Suffocate SLAVE for a long time, like 40-50 consecutive secondes by blocking nose and mouth with your ass, and also the belt. He's attached and tied down and unable to move. Smother him good, the slave struggles and gasps for air, but you just won't let him to get any. You don't move your ass from his face. The slave is trying to beg for you to stop sitting on his face, but you just won't stop smothering him and become even more rude with him by farting more on him. Then shitting on him and facesitting more longer time.