Double Pantyhose Facesitting

Which face is more comfortable? Which slave can take more? We are about to find out. With two slaves on the floor I test these seat cushions out. Wearing only bra and sheer pantyhose I take turns smothering them hard. I notice the difference in temperature between their faces and how hard they fight when their airways are sealed. The winner in this competition will get a blowjob. Not from me of course...from the less resilient seat cushion.