In this clip, I'm bound to a chair, having my air supply dictated by software. I watch timers count down, having my air blocked for upwards of 70 seconds. Then, for the last five minutes, I receive a blow job until I cum. The twist is that she wears a PVC hood with a 1/2" hole as her only way to breath. As I become harder and bigger, the hole completely closes, but when I cum, she cannot remove her mouth. You will clearly see the hood expand and collapse on her head as I cum. She is in agony, but doesn't pull out.

Some details about the software. After the "no-air" phase, you may see "bonus" of 30 seconds. This keeps the air valve closed, but when the screen goes green, I can make a noise, which releases the air valve. During my orgasm, I make a noise, but not loud enough, and by this time, I am in DESPERATE need of air, which only prolongs my orgasm.