Triple effect stimulation. The William Thrust Vibrator features a thrust mechanism, spinning beads, and a rabbit vibrating unit – an ultimate penetrative sex toy for intense sexual pleasure. The rotating metal beads take toe-curling pleasure: The rabbit vibrator is a shaft that is perfectly curved to target the G-spot and the rotating beads create the friction you crave unlike any other. Auto-insertion gives your arms a break. The auto-insertion feature is what really takes your pleasure to the next level, with one user saying that it even let her get off for the first time ever.