I think there may be an element of sarcasm in some of the above posts..never mind
There is a technique that gives you just the right amount of sensitivity. Lots of us swear by it and have done for years
What you do (about half an hour before your due to 'perform' with a lady), is apply a large squeeze of toothpaste to your bell and
immeadiately and vigorously rub it in - no delays
That all you need..
(it has the added advantage of making em enjoy sucking it cos its so minty)
Trust me this works
every time - it will work for you too. Its what they call a game changer