George and Lynne are at home. Lynne is looking at herself in the mirror and asks George if she's losing her figure. George says that it isn't the case, it's just that some mirrors are more flattering than others. Lynne understands and says that their mirror is just plain rude.
One of Lynne's biggest fears is losing her figure. She relies on it almost everyday from getting out of parking tickets to diverting attention when she is shoplifting (probably). This is one of the reasons why she has never had children, nor never wants to. Also she can't stand kids.
George is being kind to Lynne. He is right, it is a bad mirror which has warped over time, thus giving the impression that Lynne is portlier than she actually is. It's not Hall of Mirrors warped, but enough to give the wrong impression.
George had dug himself into a little hole. Lynne will now demand that every mirror in the house is replaced immediately with flattering ones. George now has to buy new full length mirrors, not cheap, and make sure that Lynne looks good in them to prevent another hissy fit. Living with Lynne is like living with a spoilt child and is the reason George doesn't want kids.