A Greek and Italian were talking one day discussing who had the superior culture. Over coffee the Greek says, "Well, we have the Parthenon."
The Italian replies, "We have the Coliseum."
The Greek retorts, "We Greeks gave birth to mathematics."
The Italian, nodding, says, "But we built the Roman Empire."
And, so on and so on until the Greek comes up with what he thinks will end the discussion. With a flourish of finality he says, "We invented sex!"
The Italian replies, "That is true, but it was the Italians who introduced it to women."
Hat tip: Nick M.