You don't need air, silly. Your vision going dark at the edges is just your ability to resist going away. If you black out with cock down your throat, it just means that you are more useful unconscious. Brain cells are overrated anyway, ruin yourself for cock. Be a better toy.
i like when my boyfriend gets violent with me and tells me how he wants to kill me and slit my throat lik Yes Yes please God Pleaseee if you love me let my boyfriend strangle me to death and do things to me