A large woman goes to a plastic surgeon.
"What can I do for you?"
"Well, I really don't want to spend much money, but I want to make my breasts much bigger. How can you do that for me for almost no money?"
The doctor tells her, "You don't need surgery to do that. Just take toilet paper and rub it on your chest every day."
The surprised woman asks, "How does THAT make them bigger?"
"Worked for your butt, didn't it?"