Naming the Twins

A pregnant lady got in a car crash and fell into a coma. She woke up shortly after her babies were delivered.

Doctor: "You had twins, a boy and a girl." Woman: "Great! How are they doing?" Doctor: "They are perfectly healthy. We even let your brother name them." Woman: "Oh no! My brother is an idiot! What are their names?" Doctor: "Your daughter is named Denise." Woman: "Oh, that's a nice name. What about my son?" Doctor: "His name is... Denephew."