is like a bike without tires
Actually, I have something to say about this.
I could imagine that the testes are still inside the body. After all, what happens in the development of the fetus is that the testes move downward from inside the body into the scrotum.
An even more anatomically “correct” version would be a penis in place of the clitoris. The part that develops into the clitoris is the same part that develops into the penis.