Do some girls have penises?

Yes, they are called intersexed; they are born with both male and female sexual characteristics and organs. Parents in the past were encouraged to have their child surgically altered to be a boy or girl but as the child developed their temperament and personality, they may have made a wrong choice. Today, people who have had their genders assigned by surgery in infancy are trying to change attitudes to allow a child to develop naturally and choose surgery themselves or remain as they are. In the past, intersexuals were call hermaphrodites, but the term is considered offensive by many today.