A pianist was hired to play background music for a movie. When it was completed
he asked when and where he could see the picture. The producer sheepishly
confessed that it was actually a porno film and it was due out in a month.
A month later, the musician went to a porno theater to see it. With his collar
up and dark glasses on, he took a seat in the back row, next to a couple
who also seemed to be in disguise.

The movie was even raunchier than he had feared, featuring group sex, S/M and
even a dog. After a while, the embarrassed pianist turned to the couple and
said, Im only here to listen to the music.

Yeah? replied the man. Were only here to see our dog.