Did you know that, like the penis, the clitoris contains two spongy tissue chambers (known as corpora cavernosa)? The difference is that these two structures are INSIDE the female. The glands is the clit protruding, the part you see, but most of the clitoral structure is within the female body.
So, pretty much, it's just a cock that hasn't descended. You think about that next time you're snacking on a little puss.
I'm learning all this in a Human Sexuality class and it's ruining my life.