A man goes to his doctor.

"Doc, I think I'm oversexed."

"Well, how often do you and your wife have sex?"

"About three times a week."

"You're not oversexed. That's perfectly normal."

"Well, I'm seeing my secretary, too."

"Oh, so how often do you have sex with her?"

"About three times a week."

"Wow, that's impressive, but I still don't think you're oversexed."

"Uh, Doc, I'm also doing my next door neighbor."

"I see. And how often..."

"About three times a week."

"I have to admit that's a lot, but I still don't think..."

"Doc, you see, um, I also have a dog."

"This is getting bizarre. You have sex with your dog?"

"About three times a week."

"Good God, man, you've got to get a hold of yourself!"

"I already do, Doc, about three times a week!"