Betty is hired to play her trumpet on the score of a movie, and she's
excited. She's especially thrilled because she got to take two long
solos.

After the sessions, which went great, Betty can't wait to see the
finished product. She asked the producer where and when he could catch the film.

A little embarrassed, the producer explained that the music was for a porno
flick that will be out in a month, and he told Betty where she can go to see it.

A month later, Betty , with her collar up and wearing dark sunglasses,
went to the theatre where the picture is playing. She walked in and sat
way in the back, next to an elderly couple who also seem to be disguised and
hiding. The movie started, and it was the filthiest, most perverse porno
flick ever...group sex, S&M, golden showers...and then, halfway through,
a dog got in on the action.

Before anyone could blink an eye, the dog has had sex with all the
women, in every orifice; and most of the men. Embarrassed, Betty turned
to the old couple and whispered, "I'm only here for the music."

The woman turned to Betty and whispered back, "That's okay, we're
here to see our dog."