Timing is everything...
She was in the kitchen doing the boiled eggs for breakfast. He walks in and asks "What's for breakfast?"
She turns to him and says, "You've got to make love to me this very moment".
He, thinking it's his lucky day, stands her over the kitchen table and they have sex.
Afterwards he says, "What was that all about?"
She says "The egg timer's broken!"
As for the Mesopotamian jokes, I guess you had to be there.