
A man and a woman met at a bar. They chatted, flirted and started getting along really rather well. One thing led to another and they eventually retired to her place for a drink.
Some drinks later, the man took off his shirt and immediately washed his hands. He then took off his socks and washed his hands again.
The woman stared at him, then proclaimed, You are a dentist.
Flabbergasted, the man responded, Why yes, I am! That's amazing! How on earth did you guess?
The woman replied, Simple. You keep washing your hands.
Well, another thing led to another thing, and they migrated to the bed. The alcohol in the drinks stoked dormant twin fires of desire, and they made passionate love.
When their deed was done, the woman fluttered and sighed, You must be an absolutely GREAT dentist!
The dentist was very surprised and not a little flattered. He replied, Right again, my darling! I AM a great dentist, and greatly amazed by your remarkable perspicacity. But how did you guess THAT, my dear?
I didn't feel a thing.