A clitoris is largely made up of erectile tissue, so it would make sense that it should be able to grow a good amount. I have seen videos where they were able to enlarge them a lot from applying enough vacuum.
They don't grow if you play with them a lot, no more than your cock grows because you play with it too much.
If that's true, I would have the world's largest cock.
Souper I asked YOUR Mommy and she ask me to shoot a good HOT load of cum on her's, then she licked my balls clean. Her's was little and tender but she knew how to SQUEAL when I stuck my dick inside her.