One day, fresh out of the shower, she is yet again in front of the mirror, now complaining that her breasts are too small. The husband comes up with a suggestion. “If you want your breasts to grow, then every day take a piece of toilet paper, and rub it between your breasts for a few seconds.”
Willing to try anything, the wife fetches a piece of toilet paper, and stands in front of the mirror, rubbing it between her breasts. “How long will this take?” she asks.
“They’ll grow slightly larger every day over a period of years,” he replies.
The wife stops. “Why do you think rubbing a piece of toilet paper between my breasts every day will make my breasts grow over the years?”
The husband shrugs. “Why not, it worked for your butt, didn’t it?”