Hubby and wife were working in the yard.  She bends over to pick something up giving him a rear view.  He says, man your ass has gotten big.  In fact I think it's as wide as the barbecue grill.  He goes and gets a measuring tape.  After measuring the width if her ass and the width of the barbecue he said it confirms his observation.

That night in bed he tries to get a bit frisky, but she'll have no part of it.  He asked why she wasn't being responsive.  She rolls over and tells him "I'm not going to fire up the grill just for one little weenie".