Who's the other father!?
 

A blond guy and a brunette girl were happily married and about to have a baby. One day, the wife started having contractions, so the husband rushed her to the hospital. He held her hand as she went through a trying birth. In the end, there were two little baby boys.
The blond guy turned to his wife and angrily said, "All right, who's the other father!?!"