Thermometer

A beautiful, young blonde about 17 went to a doctor and asked for a check-up. The doctor claimed that he had to use a thermometer for the check-up. So the doctor asked her "Where shall I put the thermometer?" and the blonde replied "...uh ...not in my mouth, I might swallow it."

Okay...let's try your armpit." the doctor suggested. "Well, it
might tickle me. How about my butt?" the blonde answered. "Okay
then," so he put the thing in the blonde’s butt.

Later, the blonde while giggling exclaimed "that's not my butt, doc!" and the doctor replied, "it's not the thermometer either."