A man and a woman met at a bar. They started getting along really well and they decide to go to her place for a drink.

Some drinks later, the guy took off his shirt and washed his hands. He then took off his socks and washed his hands.

The woman looked at him and said, “You must be a dentist.”

Flabbergasted, the guy responded, “Why yes! That’s amazing; how did you know that?”

The woman replied, “Real easy. You keep washing your hands.”

One thing leads to another, and they go to bed.

After the lovemaking, the woman remarked, “You must be a GREAT dentist!”

The doctor was very surprised, and said, “Yes! Yes! I sure am a great dentist. Wow! You amaze me! And how did you know THAT sweetheart?”

The woman says: “Easy. I didn’t feel a thing.”