Two couples go away for the weekend.......

[RolyGTIR]

......after a few beers Dave and Steve agree to wife swap for the night.
Dave was well chuffed with the arrangement as it was rag week for his missus,
so he said that at breakfast they should tap their mugs of tea with a spoon to indicate how many times they did it. Next morning Dave was grinning and tapped twice on his brew, Steve paused a minute, then tapped on the jam dish once and the Nutella jar 3 times!