Plastic Surgery

A woman in the bar says that she wants to have plastic surgery to enlarge her breasts.
Her husband tells her :
- Hey, you don't need surgery to do that.
I know how to do it without surgery.
The lady asks :
- How do I do it without surgery ?
- Just rub toilet paper between them.
Startled the lady asks :
- How does that make them bigger ?
- I don't know, but it worked for your ass.