What about the hermaphrodites?
There was an article about one “woman” here, recently, whose clitoris was a partially-developed penis, or something like that.
The clitoris is the same structure as the penis. Add testosterone and it grows large.
The human genotype contains all the structures for both male and female... both genders have all the same parts. They differentiate because of hormonal influences and the single sex controlling gene.
penis = clitoris
ovaries = testes
As an example, male breasts are identical to female breasts. Add estrogen and then they look identical. Males can even nurse children. Breast size does not equate to milk producing ability. Some medications have the side effect of causing lactation in the male... a frightening side effect to be sure.
I know... it's all rather weird and startling. Mother Nature has a sense of humor perhaps.