Twins

[Rodgera]

A friend of mine gets peeved when passers-by pat his twin
three-year-olds on the head and ask, "Are they twins?"

But he has found what he considers the perfect reply. "No, they're not," he
says. "I've got two wives."

[Allan at Wallan]

If the twins were boys, were their names "Pete" and "Repeat",
or if girls were they "Kate" and "Duplicate"?