It vibed inside me as I stimulated myself on the outside with my fingers. I took my time with it, and after a while, I finally erupted in a bubbly, buzz-shuddering orgasm. The best part about this toy is that it stayed put as I played with it. I push most toys out with the force of my twitching vaginal muscles, especially when I'm cumming, but the super bumpy head kept this one firmly in place. In fact, it was a little comical pulling it out - ouch!