Pink lips and a deep throat are a great way to relax and let off a load, but should a blow job numb your penis? I guess if there's desensitizing lubricant in the equation. Problem to me with this so called perfect blow job - If you're big, the bullet is a pain; if you're average it works just fine; if you're small, it's difficult to hold the stroker. Use the bullet to massage your balls or perineum. Blow jobs shouldn't buzz.