Watch this clip on repeat.  It's an endless edging loop. You'll be forever jerking, forever deprived of oxygen, more and more desperate for air and orgasms with each cycle. Your head is spinning as I show you exactly how to constrict your breathing. We alternate between hyperventilation, rapidly sucking in lungful after lungful of those precious oxygen molecules while you have the chance, and then extended breath holding.  The pleasure of stroking is infinitely amplified by the oxygen deprivation. You're c h o k i n g and stroking. It's pure euphoria, and pure frustration. Each edge is more intense than the last.  Start jerking. Breathe while you still have the chance. This cycle will never end.