A marathon mating session

A doctor had just finished a marathon mating session with one of his patients.

He was resting afterwards and was feeling a bit guilty because he thought it wasn’t really ethical to bang one of his patients.

However, a little voice in his head said “Lots of other doctors have mating with their patients so its not like you’re the first…”

This made the doctor feel a little bit better until still another voice in his head said, “… but they probably weren’t veterinarians”