A Guy Walks Into A Supermarket

And notices a beautiful blonde who waves at him and says hello. He's rather taken back and doesn't recognize her and asks. "Do you know me?" To which she replies "I think you are the father of one of my kids." He panics, and thinks of the only time where he was unfaithful to his wife and says, "omg! Are the stripper that was at my bachelor party that I put on the pool table while all of all my buddies watched and then you and your friend covered me in whipped cream and licked it all off?" The woman looked at him, wide eyed and said, "no, I'm your sons math teacher."