Doggy style!

A woman went to the doctor and complained that she was suffering from I knee pains.

"Do you indulge in any activity that puts a lot of pressure on your knees?" asked the doctor.

"Every night, my husband and I have sex on the floor doggy style."

"I see," said the doctor. "You know, there are plenty of other sexual positions?"

"Not if you want to watch TV there ain't