An Ancient Roman dude and an Ancient Greek dude become friends in heaven.
They discuss politics and have a friendly debate as to which civilization was better.
"We built the Parthenon," says the Greek.
"Well, we built the Colosseum," declares the Roman.
"We were the inventors of democracy," the Greek explains.
"Well, we were the innovators of European trade and commodity," the Roman points out.
"Oh yeah? Well we invented oral sex, anal sex, and group sex," the Greek insists.
The Roman smiles and then proclaims, "True, but we were the ones who introduced that to women."