Penis numbing with elastrator bands - Session 1

In this session I have numbed my penis by applying an elastrator band at the base of my cock for 30 minutes. After that I waited for 30 minutes and applied a second band in the middle of my shaft for another 30 minutes. I do not want to harm my nerves permanently, so I hope I always only damage the myelin sheath, not the axon or even more. My cock is numb and I went a bit further this day - watch Session 2. I could not cum for 3 days and even then, it was very hard to bring it to end. My wife sat on my face and rubbed her pussy tightly against it. This was the only way to finally cum after days of being horny.