The Dentist

A guy and a girl met at a bar. They started getting along really well they decide to go to the girl's place for a drink. A few drinks later, the guy took off his shirt and washed his hands. He then took off his socks and washed his hands. The girl looked at him and says: 'You must be a dentist!' Flabbergasted, the guy responded 'Yes, that's amazing how did you figure that out ?' The girl said: 'Easy .... you keep washing your hands' One thing led to another, they migrated to the bed and things became more passionate. After they were done, the girl said: 'You must be a GREAT dentist!' The guy was very very surprised, and said 'Yes, I sure am a great dentist ... How did you figure that out??' The girl said: 'Easy ... I didn't feel a thing'