A guy and a girl meet at a bar. They get along so well they decide to go back to the girl's place.
A few drinks later, the guy takes off is shirt and then washes his hands. He takes off his jeans and washes his hands again.
The girl has been watching him and says, " You must be a dentist"
The guy, surprised, says, "Yes. How did you figure that out?"
"Easy," she replied, "you keep washing your hands"
One thing leads to another and they make love.
After they have finished, the girl says, "You must be a good dentist".
The guy, now with boosted ego says, "Sure, I'm a good dentist. How did you figure that out?"
"I didn't feel a thing!"
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