Guy goes to his psychiatrist and says “I’m in love with my dog. “
“Well that is not so unusual, millions of people love their dogs. “
“But doctor, you don’t understand. I’m physically attracted to my dog. I’m in love with my dog. “
“Well, is your dog male or female?”
“Female, of course, what the hell do you think I am, queer?”
This joke is included in the Black Book of Jokes. You can order it from here.