If you are easily offended, please don't read any more. I tried to make it as easy to swallow as possible but...
A married man, in his forties, is in a supermarket, and gets greeted by an unknown gorgeous blonde...
-"Have we met before?", he asks her
-"I think you are the father of one of my children", replies the blonde
The man looks at her for a moment and then shocked, says "you, you must be the stripper in that bachelor party, many years ago, we did it in the pool and then you whip me till I screamed and then you pushed a carrot inside my ..."
-"Oh no", cuts the blonde, "I am your son's math teacher..."